Live/247 Rank/Iowa

Iowa 24/7 Rank

Every station in Iowa ranked by its 247 score out of 100: how reliably it reports, how accurate its readings are against a reference station, how they pass their checks and how they stand against the forecast, over the last seven days.

1,060 stations ranked27.0% sent every report dueranked October 16, 2026page 3 of 5Iowa instrumentsIowa weather

A station is ranked once its week holds enough reports to measure: 12, or 3 days for a gauge that reports once a day. Of the 1,060 ranked here, 1,052 have a page of their own; the rest are platforms heard here that have not yet reported enough to be listed.

Every station, ranked

Rank	Station	Score	Network	County	Received	Reports	Arrives in	Longest silence
498	TURKEY RIVER AT ClermontCMTI4	94.7	Gauge	Fayette	98.9%	665 of 672	27 min	45 min
498	Masonville 2NE - Coffins CreekCOFI4	94.7	Gauge	Delaware	98.9%	665 of 672	27 min	45 min
498	OrchardCROI4	94.7	Gauge	Floyd	98.9%	665 of 672	27 min	45 min
498	Walnut Creek 4 W IFC--Clive NW 128th StCWAI4	94.7	Gauge	Polk	98.9%	665 of 672	27 min	45 min
498	Ely - Hoosier CreekELHI4	94.7	Gauge	Linn	98.9%	665 of 672	27 min	45 min
498	Indian Creek 3 NE EmersonEMNI4	94.7	Gauge	Montgomery	98.9%	665 of 672	27 min	45 min
498	Le MarsFLMI4	94.7	Gauge	Plymouth	98.9%	665 of 672	27 min	45 min
498	Garrison - Mud CreekGMUI4	94.7	Gauge	Benton	98.9%	665 of 672	27 min	45 min
498	Keosauqua - Chequest CreekKCQI4	94.7	Gauge	Van Buren	98.9%	665 of 672	27 min	45 min
498	Troublesome Creek 4 E IFC--Lorah Troublesome Creek RdLRHI4	94.7	Gauge	Cass	98.9%	665 of 672	27 min	45 min
498	North Raccoon River 2 WSW IFC--Minburn Minburn RdMBNI4	94.7	Gauge	Dallas	98.9%	665 of 672	27 min	45 min
498	Cheslea Creek 2 SW IFC--Mason City 19th St SWMCCI4	94.7	Gauge	Cerro Gordo	98.9%	665 of 672	27 min	45 min
498	MerrimacMERI4	94.7	Gauge	Jefferson	98.9%	665 of 672	27 min	45 min
498	Little Sioux River 2 NW MontgomeryMLSI4	94.7	Gauge	Dickinson	98.9%	665 of 672	27 min	45 min
498	Osage 2 WOSGI4	94.7	Gauge	Mitchell	98.9%	665 of 672	27 min	45 min
498	Clear Creek SSW Oxford-IFC-Clear Creek - Eagle AveOXDI4	94.7	Gauge	Johnson	98.9%	665 of 672	27 min	45 min
498	Wapsipinicon River 1 S Oxford JctOXJI4	94.7	Gauge	Jones	98.9%	665 of 672	27 min	45 min
498	Oxford - Rhine CreekOXRI4	94.7	Gauge	Johnson	98.9%	665 of 672	27 min	45 min
498	Mud Creek 6 E IFC--Pleasant Hill IA 163PLMI4	94.7	Gauge	Polk	98.9%	665 of 672	27 min	45 min
498	Rock Creek 2 WSW Orchard 2WSWRCOI4	94.7	Gauge	Floyd	98.9%	665 of 672	27 min	45 min
498	Middle Raccoon River 0 W IFC--Redfield Hwy F59RDFI4	94.7	Gauge	Dallas	98.9%	665 of 672	27 min	45 min
498	Rochester - Cedar RiverRSRI4	94.7	Gauge	Cedar	98.9%	665 of 672	27 min	45 min
498	SpencerSPNI4	94.7	Gauge	Clay	98.9%	665 of 672	27 min	45 min
498	Raven Creek 5 W IFC--Tama Hwy E49TARI4	94.7	Gauge	Tama	98.9%	665 of 672	27 min	45 min
498	Turkey River 3 SE CrescoTCGI4	94.7	Gauge	Howard	98.9%	665 of 672	27 min	45 min
498	Riverton - West Nishnabotna J46WISI4	94.7	Gauge	Fremont	98.9%	665 of 672	27 min	45 min
498	Spillville - Wonder CreekWONI4	94.7	Gauge	Winneshiek	98.9%	665 of 672	27 min	45 min
498	Wyoming - Bear CreekWYOI4	94.7	Gauge	Jones	98.9%	665 of 672	27 min	45 min
529	Ames 2SSE - IFC Ioway Creek DuffAMDI4	94.7	Gauge	Story	98.9%	665 of 672	27 min	45 min
529	Onion Creek 4 WNW IFC--Ames Hwy R38AONI4	94.7	Gauge	Story	98.9%	665 of 672	27 min	45 min
529	East Nishnabotna River 2 SSW IFC--Brayton 345th StBRAI4	94.7	Gauge	Audubon	98.9%	665 of 672	27 min	45 min
529	Story City 8W - IFC Ioway Creek 120thBSCI4	94.7	Gauge	Boone	98.9%	665 of 672	27 min	45 min
529	South Fork Iowa River 3 N IFC--Buckeye Hwy S27BSFI4	94.7	Gauge	Hardin	98.9%	665 of 672	27 min	45 min
529	Cedar Rapids - Indian Creek near Cottage GroveCRGI4	94.7	Gauge	Linn	98.9%	665 of 672	27 min	45 min
529	ElginEGNI4	94.7	Gauge	Fayette	98.9%	665 of 672	27 min	45 min
529	Indian Creek AT Emerson Morton AveEMEI4	94.7	Gauge	Mills	98.9%	665 of 672	27 min	45 min
529	Des Moines River 0 SSW IFC--Fraser Kale RdFRAI4	94.7	Gauge	Boone	98.9%	665 of 672	27 min	45 min
529	Maurice - StrubleFRSI4	94.7	Gauge	Sioux	98.9%	665 of 672	27 min	45 min
529	Homestead - Clear Creek TribHMTI4	94.7	Gauge	Iowa	98.9%	665 of 672	27 min	45 min
529	West Nishnabotna River 1 NW Henderson Hwy H12HWNI4	94.7	Gauge	Mills	98.9%	665 of 672	27 min	45 min
529	Kinross - South EnglishKRSI4	94.7	Gauge	Washington	98.9%	665 of 672	27 min	45 min
529	Larrabee - Mill CreekLARI4	94.7	Gauge	Cherokee	98.9%	665 of 672	27 min	45 min
529	Little Rock River - George IbexLRGI4	94.7	Gauge	Lyon	98.9%	665 of 672	27 min	45 min
529	CherokeeLSCI4	94.7	Gauge	Cherokee	98.9%	665 of 672	27 min	45 min
529	Mosquito Creek 4 ENE Council BluffsMCBI4	94.7	Gauge	Pottawattamie	98.9%	665 of 672	27 min	45 min
529	Manchester 3NNE - Honey CreekMHYI4	94.7	Gauge	Delaware	98.9%	665 of 672	27 min	45 min
529	Osage - Spring Creek Hwy 9OSPI4	94.7	Gauge	Mitchell	98.9%	665 of 672	27 min	45 min
529	Cedar River 3 N OtrantoOTRI4	94.7	Gauge	Mitchell	98.9%	665 of 672	27 min	45 min
529	North Raccoon River 3 NNW IFC--Sac City 230th StSARI4	94.7	Gauge	Sac	98.9%	665 of 672	27 min	45 min
529	Spring Run CreekSPGI4	94.7	Gauge	Dickinson	98.9%	665 of 672	27 min	45 min
529	Vinton - Mud CreekVIMI4	94.7	Gauge	Benton	98.9%	665 of 672	27 min	45 min
529	Little Walnut Creek 6 WNW IFC--Clive 156th StWCWI4	94.7	Gauge	Dallas	98.9%	665 of 672	27 min	45 min
529	Washington 2SW - WF Crooked CrrekWFCI4	94.7	Gauge	Washington	98.9%	665 of 672	27 min	45 min
529	Welsh LakeWLSI4	94.7	Gauge	Dickinson	98.9%	665 of 672	27 min	45 min
555	Big Sioux River AT Sioux CitySXCI4	94.7	Gauge	Woodbury	98.8%	166 of 168	27 min	2 h
556	Council BluffsCBF	94.6	Airport	Pottawattamie	99.6%	502 of 504	14 min	40 min
557	Brockcamp Creek AT FestinaFSTI4	94.6	Gauge	Winneshiek	98.8%	664 of 672	27 min	45 min
558	Elgin - Otter CreekBANI4	94.6	Gauge	Fayette	98.8%	664 of 672	27 min	45 min
558	West Fork Little Sioux River 3 SE Lake ParkLPRI4	94.6	Gauge	Dickinson	98.8%	664 of 672	27 min	45 min
558	Willow Creek 0 WSW IFC--Mason City 1st St SWMSWI4	94.6	Gauge	Cerro Gordo	98.8%	664 of 672	27 min	45 min
558	Little Cedar River AT NashuaNUAI4	94.6	Gauge	Chickasaw	98.8%	664 of 672	27 min	45 min
558	Robins - Dry CreekRBDI4	94.6	Gauge	Linn	98.8%	664 of 672	27 min	45 min
558	Silver Creek AT Silver City Dobney AveSILI4	94.6	Gauge	Mills	98.8%	664 of 672	27 min	45 min
558	North Walnut Creek 1 NW IFC--Windsor Heights College DrWNDI4	94.6	Gauge	Polk	98.8%	664 of 672	27 min	45 min
565	CEDAR RIVER 2 S St. AnsgarAGRI4	94.6	Gauge	Mitchell	98.8%	664 of 672	27 min	45 min
565	South Fork Iowa River 5 W IFC--Alden Hwy D20ALSI4	94.6	Gauge	Hardin	98.8%	664 of 672	27 min	45 min
565	Brainard - Otter CreekBNDI4	94.6	Gauge	Fayette	98.8%	664 of 672	27 min	45 min
565	Charlotte - Deep CreekCHDI4	94.6	Gauge	Clinton	98.8%	664 of 672	27 min	45 min
565	East Nishnabotna River 1 WSW Coburg Hwy H54COBI4	94.6	Gauge	Montgomery	98.8%	664 of 672	27 min	45 min
565	Muscatine - Geneva CreekGENI4	94.6	Gauge	Muscatine	98.8%	664 of 672	27 min	45 min
565	Camp Creek 5 S IFC--Mitchellville IA 163MTCI4	94.6	Gauge	Polk	98.8%	664 of 672	27 min	45 min
565	Otterville - Otter CreekOTVI4	94.6	Gauge	Buchanan	98.8%	664 of 672	27 min	45 min
565	Oxford - Clear CreekOXCI4	94.6	Gauge	Johnson	98.8%	664 of 672	27 min	45 min
565	Kendalville - Upper IowaUKVI4	94.6	Gauge	Winneshiek	98.8%	664 of 672	27 min	45 min
565	North Walnut Creek 1 SW IFC--Urbandale Hickman RdURBI4	94.6	Gauge	Polk	98.8%	664 of 672	27 min	45 min
565	Soap Creek 5 N IFC--Unionville 313th AveUSOI4	94.6	Gauge	Appanoose	98.8%	664 of 672	27 min	45 min
577	Little Soap Creek 2 N IFC--Floris Quail AveEQUI4	94.6	Gauge	Wapello	98.8%	664 of 672	27 min	45 min
577	Des Moines River 4 NW IFC--Fort Dodge Hwy D14FDDI4	94.6	Gauge	Webster	98.8%	664 of 672	27 min	45 min
577	Winnebago River 0 S IFC--Fertile S 1st StFERI4	94.6	Gauge	Worth	98.8%	664 of 672	27 min	45 min
577	Maple River AT GalvaMRGI4	94.6	Gauge	Ida	98.8%	664 of 672	27 min	45 min
577	Slough Creek 3 SE Orchard 3SEOSCI4	94.6	Gauge	Floyd	98.8%	664 of 672	27 min	45 min
577	Beaver Creek 3 E IFC--Parkersburg Hwy T47PARI4	94.6	Gauge	Butler	98.8%	664 of 672	27 min	45 min
577	Cedar River 1 E IFC--Plainfield IA 188PFLI4	94.6	Gauge	Bremer	98.8%	664 of 672	27 min	45 min
577	Burchfield Creek 4 NNW IFC--Panora Sage TrlPNBI4	94.6	Gauge	Guthrie	98.8%	664 of 672	27 min	45 min
577	Sutliff - Cedar RiverSLFI4	94.6	Gauge	Johnson	98.8%	664 of 672	27 min	45 min
586	Little Sioux River AT SpencerSPWI4	94.6	Gauge	Clay	98.8%	332 of 336	27 min	60 min
587	Cedar River 5 ESE Cedar Rapids below Indian CreekCBII4	94.6	Gauge	Linn	98.8%	166 of 168	27 min	2 h
588	Cedar Rapids - Dry CreekCDDI4	94.6	Gauge	Linn	98.8%	166 of 168	27 min	2 h
589	Tiffin - Buffalo CreekTFGI4	94.6	Gauge	Johnson	98.6%	663 of 672	27 min	45 min
590	Ames 1W - IFC Ioway Creek at Stange RdAMQI4	94.6	Gauge	Story	98.6%	663 of 672	27 min	45 min
590	Homestead - Clear CreekHMCI4	94.6	Gauge	Iowa	98.6%	663 of 672	27 min	45 min
590	Iowa City - Ralston CreekICRI4	94.6	Gauge	Johnson	98.6%	663 of 672	27 min	45 min
590	West Nishnabotna River 0 ENE Irwin Cora StIWNI4	94.6	Gauge	Shelby	98.6%	663 of 672	27 min	45 min
590	Wolf Creek 0 WNW IFC--La Porte City W Main StLAPI4	94.6	Gauge	Black Hawk	98.6%	663 of 672	27 min	45 min
590	Rockford 3 SSERKFI4	94.6	Gauge	Floyd	98.6%	663 of 672	27 min	45 min
590	Lime Springs - Upper IowaULSI4	94.6	Gauge	Howard	98.6%	663 of 672	27 min	45 min
597	Central CityCCTI4	94.6	Gauge	Linn	98.6%	663 of 672	27 min	45 min
597	Dubuque - N Fork CatfishDBFI4	94.6	Gauge	Dubuque	98.6%	663 of 672	27 min	45 min
597	Denison - Boyer River at K AveDSKI4	94.6	Gauge	Crawford	98.6%	663 of 672	27 min	45 min
597	Freeport - Upper Iowa RiverFREI4	94.6	Gauge	Winneshiek	98.6%	663 of 672	27 min	45 min
597	Saude - Little Turkey RiverSDEI4	94.6	Gauge	Chickasaw	98.6%	663 of 672	27 min	45 min
597	Spillville - Turkey RiverSPVI4	94.6	Gauge	Winneshiek	98.6%	663 of 672	27 min	45 min
603	Walnut Creek SSW Olin-IFC-Walnut Creek - 35th StWCRI4	94.6	Gauge	Jones	98.6%	663 of 672	27 min	45 min
604	WilliamsRWMI4	94.6	Road	Hamilton	93.2%	522 of 560	16 min	58 min
605	Waterloo SnowWLOI4	94.6	Cooperative	Black Hawk	89.2%	25 of 28	15 min	12 h
606	Tipton Creek 4 E IFC--Hubbard N AveHTII4	94.5	Gauge	Hardin	98.5%	662 of 672	27 min	45 min
606	Littleton - Little Wapsipinicon RiverLTNI4	94.5	Gauge	Buchanan	98.5%	662 of 672	27 min	45 min
606	Owens County - Willow CreekOYEI4	94.5	Gauge	Plymouth	98.5%	662 of 672	27 min	45 min
606	Volga River AT VolgaVGAI4	94.5	Gauge	Clayton	98.5%	662 of 672	27 min	45 min
610	Clive - Walnut Creek near NW 100thCLOI4	94.5	Gauge	Polk	98.5%	662 of 672	27 min	45 min
610	Hargrave Creek 3 W IFC--Dumont Franklin AveDUMI4	94.5	Gauge	Franklin	98.5%	662 of 672	27 min	45 min
610	South Raccoon River 3 SW IFC--Redfield Dexfield RdEFDI4	94.5	Gauge	Dallas	98.5%	662 of 672	27 min	45 min
610	Winnebago River 5 ESE IFC--Mason City Hwy S56MCRI4	94.5	Gauge	Cerro Gordo	98.5%	662 of 672	27 min	45 min
610	East Nishnabotna River 1 N ShenandoahSHNI4	94.5	Gauge	Fremont	98.5%	662 of 672	27 min	45 min
615	Cascade - NF Maquoketa RiverCSCI4	94.5	Gauge	Dubuque	98.5%	662 of 672	27 min	45 min
615	Olin 1N - Wapsipinicon RiverOLII4	94.5	Gauge	Jones	98.5%	662 of 672	27 min	45 min
617	Iowa City - Deer CreekICDI4	94.5	Gauge	Johnson	98.3%	661 of 672	27 min	45 min
617	Packard 2ENE - Flood CreekPKFI4	94.5	Gauge	Butler	98.3%	661 of 672	27 min	45 min
619	Delhi 4W - Upper Lake DelhiULDI4	94.4	Gauge	Delaware	98.2%	660 of 672	27 min	45 min
619	Volga River AT WadenaWADI4	94.4	Gauge	Fayette	98.2%	660 of 672	27 min	45 min
621	Oakland Mills - Skunk RiverOAMI4	94.4	Gauge	Henry	98.2%	660 of 672	27 min	45 min
622	North Raccoon River 1 N IFC--Dawson Hwy P46DAWI4	94.4	Gauge	Dallas	98.2%	660 of 672	27 min	45 min
623	Brushy Fork Creek 4 ENE TempletonTPTI4	94.4	Gauge	Carroll	98.2%	165 of 168	27 min	2 h
624	North Washington 1SSE - Little WapsiNWSI4	94.4	Gauge	Chickasaw	98.0%	659 of 672	27 min	45 min
625	Little Sioux River 3 NW Spencer / Highway 18SPII4	94.4	Gauge	Clay	98.0%	659 of 672	27 min	45 min
626	Beaver Slough AT Clinton 3rd StCBSI4	94.4	Gauge	Clinton	95.2%	160 of 168	21 min	2 h
626	Mississippi River AT LansingLNSI4	94.4	Gauge	Allamakee	95.2%	160 of 168	21 min	2 h
626	Massena - West Nodaway RiverMAAI4	94.4	Gauge	Cass	95.2%	160 of 168	21 min	2 h
626	Pilot Creek 3 E RolfeRLFI4	94.4	Gauge	Pocahontas	95.2%	160 of 168	21 min	2 h
630	East Fork Des Moines River 8 S IFC--Algona Hwy B63AGAI4	94.3	Gauge	Kossuth	97.9%	658 of 672	27 min	45 min
631	Fourmile Creek 3 NNE IFC--Ankeny NE 47th StANFI4	94.3	Gauge	Polk	97.9%	658 of 672	27 min	45 min
631	Kesley - EF Cedar RiverKESI4	94.3	Gauge	Butler	97.9%	658 of 672	27 min	45 min
631	Walnut Creek 6 E IFC--Runnells Adkins StWLRI4	94.3	Gauge	Marion	97.9%	658 of 672	27 min	45 min
634	Floyd River 1 N SheldonSHLI4	94.3	Gauge	O Brien	97.9%	329 of 336	27 min	60 min
635	Roland - Bear CreekROLI4	94.3	Gauge	Story	97.7%	657 of 672	27 min	45 min
636	Long Grove 5.0 ENEIA-ST-55	94.2	Volunteer	Scott	100%	7 of 7	11.4 h	24 h
637	ArgyleRARI4	94.2	Road	Lee	99.4%	501 of 504	16 min	42 min
638	PerryPRO	94.2	Airport	Dallas	98.4%	496 of 504	16 min	85 min
639	Sheffield 11SE - WF Cedar RiverSFLI4	94.2	Gauge	Franklin	97.6%	656 of 672	27 min	45 min
640	Frederika - EF Wapsipinicon RiverFRDI4	94.2	Gauge	Bremer	97.6%	656 of 672	27 min	45 min
641	SheldonSFRI4	94.2	Gauge	Sioux	97.6%	656 of 672	27 min	45 min
642	Cedar Rapids - Cedar River at 12thCERI4	94.2	Gauge	Linn	97.6%	164 of 168	27 min	2 h
643	Marion - Indian CreekMACI4	94.2	Gauge	Linn	97.4%	655 of 672	27 min	45 min
644	Winnebago River 7 NW IFC--Mason City Killdeer AveMCKI4	94.2	Gauge	Cerro Gordo	97.4%	655 of 672	27 min	45 min
645	Des Moines River 2 NE SwanSWNI4	94.1	Gauge	Marion	100%	168 of 168	31 min	60 min
646	Des Moines River 0 S EddyvilleEDYI4	94.1	Gauge	Wapello	100%	168 of 168	31 min	75 min
647	Black Hawk Creek 0 W HudsonHUDI4	94.1	Gauge	Black Hawk	100%	168 of 168	31 min	78 min
647	South Raccoon River 2 E RedfieldREDI4	94.1	Gauge	Dallas	100%	168 of 168	31 min	78 min
649	Turkey River AT GarberGRBI4	94.1	Gauge	Clayton	100%	168 of 168	31 min	60 min
650	CrestonCSQ	94.1	Airport	Union	98.4%	496 of 504	14 min	2.4 h
651	Garrison - Mud CreekGMDI4	94.1	Gauge	Benton	97.4%	655 of 672	27 min	45 min
652	New Vienna - NF Maquoketa RiverNWVI4	94.1	Gauge	Dubuque	97.3%	654 of 672	27 min	45 min
653	Houghton - Volga River Hwy93RNDI4	94.1	Gauge	Fayette	97.3%	654 of 672	27 min	45 min
654	Rock Creek 6 W Osage 6WOSRI4	94.0	Gauge	Mitchell	97.0%	652 of 672	27 min	45 min
655	Bellevue 9NNW - Pool 12NVRI4	93.9	Gauge	Dubuque	99.4%	167 of 168	32 min	1.8 h
655	Waupeton - Mississippi Pool 11WPNI4	93.9	Gauge	Dubuque	99.4%	167 of 168	32 min	1.8 h
657	Maple River AT Ida GroveMIGI4	93.9	Gauge	Ida	96.7%	650 of 672	27 min	45 min
658	Pacific JunctionRPJI4	93.9	Road	Mills	94.0%	948 of 1,008	17 min	40 min
659	Raccoon River 0 ENE Van MeterVNMI4	93.9	Gauge	Dallas	91.5%	615 of 672	17 min	47 min
660	Washburn - Miller CreekWASI4	93.8	Gauge	Black Hawk	96.2%	647 of 672	27 min	45 min
661	LelandRLDI4	93.8	Road	Winnebago	89.8%	503 of 560	15 min	40 min
662	Skunk River AT AugustaAGSI4	93.7	Gauge	Des Moines	98.8%	166 of 168	31 min	2 h
662	White Fox Creek 1 E ClarionCWFI4	93.7	Gauge	Wright	98.8%	166 of 168	31 min	2 h
664	Bennett Creek 4 WSW IFC--Tama G AveTMBI4	93.7	Gauge	Tama	95.9%	645 of 672	27 min	45 min
665	Tipton Creek 5 NNW IFC--Hubbard 230th StHTCI4	93.7	Gauge	Hardin	95.9%	645 of 672	27 min	45 min
666	Big Sioux River 1 NW AkronAKRI4	93.6	Gauge	Plymouth	95.9%	215 of 224	27 min	63 min
667	Chequest Creek 5 SSW IFC--Selma Wheat AveFLCI4	93.5	Gauge	Davis	98.2%	660 of 672	27 min	60 min
668	Milford Creek 4 NW MilfordOBJI4	93.5	Gauge	Dickinson	98.2%	165 of 168	31 min	2 h
668	Lake Odessa 4 ENE Lake OdessaODSI4	93.5	Gauge	Louisa	98.2%	165 of 168	31 min	2 h
670	EllsworthELSI4	93.5	Gauge	Hamilton	95.8%	161 of 168	27 min	2 h
671	Cedar Rapids No 1CRPI4	93.4	Cooperative	Linn	85.7%	6 of 7	15 min	2 days
672	Webster CityWEBI4	93.4	Cooperative	Hamilton	85.7%	6 of 7	15 min	36.1 h
673	OttumwaOTWI4	93.4	Cooperative	Wapello	85.7%	6 of 7	15 min	2 days
674	HamptonHPTI4	93.4	Cooperative	Franklin	85.7%	6 of 7	22 min	36.1 h
675	Estherville 4 EESTI4	93.4	Cooperative	Emmet	85.7%	6 of 7	25 min	2 days
675	SheldonSHDI4	93.4	Cooperative	Obrien	85.7%	6 of 7	25 min	2 days
677	Davenport 0.9 WNWIA-ST-37	93.4	Volunteer	Scott	85.7%	6 of 7	26 min	2 days
678	Bloomfield 8.4 NNEIA-DV-10	93.4	Volunteer	Davis	85.7%	6 of 7	26 min	26 h
679	Charlotte 1.9 WNWIA-CN-17	93.4	Volunteer	Clinton	85.7%	6 of 7	26 min	36.1 h
680	Fort Madison 4.5 NNWIA-LE-20	93.4	Volunteer	Lee	85.7%	6 of 7	26 min	35.1 h
681	Shellsburg 2.9 SIA-BT-16	93.4	Volunteer	Benton	85.7%	6 of 7	26 min	2 days
681	Ankeny 1.5 NNEIA-PK-97	93.4	Volunteer	Polk	85.7%	6 of 7	26 min	2 days
683	Chariton 2.0 WSWIA-LC-12	93.4	Volunteer	Lucas	85.7%	6 of 7	26 min	35.1 h
684	Spirit LakeSPRI4	93.4	Cooperative	Dickinson	85.7%	6 of 7	35 min	2 days
685	St AnsgarSANI4	93.4	Cooperative	Mitchell	85.7%	6 of 7	45 min	24 h
686	Elkader 5SSWEKRI4	93.4	Cooperative	Clayton	85.7%	6 of 7	55 min	2 days
687	Fayette 3NNWFYTI4	93.4	Cooperative	Fayette	85.7%	6 of 7	55 min	2 days
688	Little Sioux 2 NWLSXI4	93.4	Cooperative	Harrison	85.7%	6 of 7	62 min	36.1 h
689	RandolphRANI4	93.4	Cooperative	Fremont	85.7%	6 of 7	75 min	46 h
690	Charles CityCIYI4	93.4	Cooperative	Floyd	85.7%	6 of 7	85 min	2 days
690	Manchester No. 2MHRI4	93.4	Cooperative	Delaware	85.7%	6 of 7	85 min	2 days
692	Anamosa 0.6 ESEIA-JN-16	93.4	Volunteer	Jones	85.7%	6 of 7	85 min	35.1 h
693	Marion 3.2 NIA-LN-74	93.4	Volunteer	Linn	85.7%	6 of 7	85 min	2 days
694	Decorah 7.9 ENEIA-WH-1	93.4	Volunteer	Winneshiek	85.7%	6 of 7	86 min	2 days
695	Cherokee 5.1 SIA-CK-7	93.4	Volunteer	Cherokee	85.7%	6 of 7	86 min	2 days
695	Iowa City 1.5 ENEIA-JH-30	93.4	Volunteer	Johnson	85.7%	6 of 7	86 min	2 days
695	Morning Sun 1.7 EIA-LS-2	93.4	Volunteer	Louisa	85.7%	6 of 7	86 min	2 days
695	Ireton 5.5 NIA-SX-15	93.4	Volunteer	Sioux	85.7%	6 of 7	86 min	2 days
695	Ottumwa 2.2 ENEIA-WP-13	93.4	Volunteer	Wapello	85.7%	6 of 7	86 min	2 days
700	Des Moines 4.1 NIA-PK-73	93.4	Volunteer	Polk	85.7%	6 of 7	86 min	24 h
701	Wapello 5.4 SEIA-LS-5	93.4	Volunteer	Louisa	85.7%	6 of 7	86 min	36.1 h
702	Mount Union 3.6 SIA-HY-9	93.4	Volunteer	Henry	85.7%	6 of 7	86 min	2 days
703	Gilbertville 1.0 NWIA-BH-17	93.4	Volunteer	Black Hawk	85.7%	6 of 7	86 min	2 days
704	CherokeeCKPI4	93.4	Cooperative	Cherokee	85.7%	6 of 7	1.6 h	2 days
705	Belle PlaineBLLI4	93.4	Cooperative	Benton	85.7%	6 of 7	1.6 h	2 days
706	Eldora 1.2 ENEIA-HD-5	93.4	Volunteer	Hardin	85.7%	6 of 7	2.4 h	2 days
707	Nevada 0.4 WNWIA-SR-59	93.4	Volunteer	Story	85.7%	6 of 7	2.4 h	36.1 h
708	Pleasant Hill 3.2 EIA-PK-121	93.4	Volunteer	Polk	85.7%	6 of 7	2.4 h	2 days
709	Lawton - Elliot CreekECLI4	93.3	Gauge	Woodbury	97.6%	164 of 168	31 min	2 h
709	Maquoketa River 2 NE MaquoketaMAQI4	93.3	Gauge	Jackson	97.6%	164 of 168	31 min	2 h
711	MerrillMRLI4	93.3	Gauge	Plymouth	95.2%	320 of 336	27 min	60 min
712	BlairsburgBLBI4	93.3	Gauge	Hamilton	95.2%	160 of 168	27 min	2 h
713	Alpha - Gouldsburg County ParkGPKI4	93.3	Gauge	Fayette	95.0%	639 of 672	27 min	45 min
714	Catfish Creek SSW Dubuque-IFC-Catfish Creek - Manson RdCCDI4	93.2	Gauge	Dubuque	97.3%	654 of 672	27 min	60 min
715	Colwell - Beaver CreekCWLI4	93.1	Gauge	Floyd	97.6%	164 of 168	27 min	4.3 h
716	South Skunk River 4 NNE Ames McFarland ParkMCPI4	93.1	Gauge	Story	94.6%	159 of 168	27 min	2 h
717	Webster CountyWBAI4	93.1	Gauge	Boone	94.6%	159 of 168	27 min	2.1 h
718	South Chequest Creek 2 N IFC--Troy Yak BlvdTROI4	93.0	Gauge	Davis	96.5%	649 of 672	27 min	60 min
719	StanhopeSTHI4	92.9	Gauge	Hamilton	94.0%	158 of 168	27 min	2 h
720	Ames ScanAMMI4	92.8	Gauge	Boone	99.4%	167 of 168	37 min	2 h
720	Shagbark Hills ScanSHAI4	92.8	Gauge	Woodbury	99.4%	167 of 168	37 min	2 h
722	Burr Oak Creek 4 N PerkinsBOCI4	92.8	Gauge	Sioux	96.4%	162 of 168	31 min	2 h
723	South Skunk River 2 SSE Ames US 30AESI4	92.8	Gauge	Story	93.7%	210 of 224	27 min	63 min
724	Ames 4NW - Ioway Creek Cameron School RdCSRI4	92.7	Gauge	Story	93.4%	157 of 168	27 min	2.5 h
725	HPTI4HPTI4	92.7	DCP	-	85.7%	6 of 7	3.9 h	36.1 h
726	Bassett - Beaver CreekBSTI4	92.6	Gauge	Chickasaw	97.6%	656 of 672	27 min	75 min
727	Beaver Creek 0 NNE New HartfordNHRI4	92.6	Gauge	Grundy	93.3%	209 of 224	27 min	63 min
727	Iowa River 4 WNW RowanROWI4	92.6	Gauge	Wright	93.3%	209 of 224	27 min	63 min
729	Richland Creek 1 NNE HavenHAVI4	92.5	Gauge	Tama	92.8%	208 of 224	27 min	63 min
730	Bellevue 0.3 SSWIA-JC-5	92.4	Volunteer	Jackson	85.7%	6 of 7	4.4 h	24 h
731	Sidney 5.1 NNEIA-FM-1	92.4	Volunteer	Fremont	85.7%	6 of 7	4.4 h	2 days
732	Center Point 0.6 NNWIA-LN-30	92.4	Volunteer	Linn	85.7%	6 of 7	4.4 h	47 h
733	Waucoma 3.2 SIA-FY-3	92.4	Volunteer	Fayette	85.7%	6 of 7	4.4 h	42 h
734	Kirkman 1.0 SEIA-SH-6	92.4	Volunteer	Shelby	85.7%	6 of 7	4.4 h	2 days
735	Turkey River 8 NW 10 Mile Bridge 8NW ElkaderTENI4	92.3	Gauge	Clayton	94.9%	638 of 672	27 min	60 min
736	Iowa River 0 WSW Steamboat RockSTBI4	92.3	Gauge	Hardin	92.4%	207 of 224	27 min	1.8 h
737	East Nishnabotna River AT Red OakRDOI4	92.0	Gauge	Montgomery	91.5%	205 of 224	27 min	63 min
738	Merrill County - Floyd RiverMELI4	92.0	Gauge	Plymouth	91.2%	613 of 672	27 min	45 min
739	Maple River AT MapletonMAPI4	91.9	Gauge	Monona	91.0%	204 of 224	27 min	63 min
740	Nishnabotna River 1 E HamburgHMBI4	91.9	Gauge	Fremont	91.0%	204 of 224	27 min	1.8 h
741	UnderwoodUNDI4	91.9	Cooperative	Pottawattamie	85.7%	6 of 7	5.6 h	24 h
742	Prairie Creek 6 W IFC--Gilbert V AveBPCI4	91.7	Gauge	Boone	92.8%	156 of 168	27 min	4 h
743	Little Sioux River 4 SSE TurinTURI4	91.7	Gauge	Monona	90.6%	203 of 224	27 min	63 min
744	Iowa River 5 SW Lone TreeLNTI4	91.7	Gauge	Louisa	90.6%	203 of 224	27 min	1.8 h
744	MarquetteMBRI4	91.7	Gauge	Clayton	90.6%	203 of 224	27 min	1.8 h
746	Monona-Harrison Ditch 4 SSW TurinTRNI4	91.7	Gauge	Monona	90.6%	203 of 224	27 min	2 h
747	Lineville 3.8 WIA-DC-8	91.5	Volunteer	Decatur	85.7%	6 of 7	6.4 h	36.1 h
748	AmesS2031	91.4	Soil	Story	98.8%	166 of 168	43 min	2 h
749	AudubonAUDI4	91.4	Cooperative	Audubon	85.7%	6 of 7	6.6 h	2 days
750	Walnut Creek 5 W Des Moines 63rd StDOSI4	91.3	Gauge	Polk	84.5%	568 of 672	18 min	45 min

How a station is ranked

The 247 Rank answers one question about a weather station: can its readings be relied on? A station has to deliver: its reports arrive when due, soon, without long silences. And its readings have to be right: close to a trusted station nearby, passing their checks, and in step with the weather the forecast and its neighbours confirm.

The 247 score

Storm Station's poller asks every network on its own schedule, around the clock, and keeps the time of every report it hears; the reference comparison and the forecast engine keep the rest. From the last seven days of that record each station is scored out of 100 on six parts, and its 247 score is their weighted mean:

Reports receivedweight 35The share of its scheduled reports received. A station that sends every 5 minutes is due 2,016 reports in a week; one that reports once a day is due 7. Each report is counted in a slot centred on the station's own report time, so a report a minute early or late is still on time, and the week ends an hour back, so a report still on its way is never counted missed.Full marks: 100% received. No marks: none received.
Arrivalweight 10The median time its reports took to arrive from the moment a reading was taken to the moment it reached Storm Station.Full marks: within 10 minutes, or a tenth of its schedule for a station that reports less often. No marks: an hour, or its whole schedule.
Continuityweight 10Its longest silence against its own schedule, so a daily gauge is not marked down for a day between reports.Full marks: a silence of 3 reports or less. No marks: 72 reports, falling evenly on a log scale between.
Accuracyweight 20How closely its temperature follows its reference station the nearest airport or climate reference station that reported within half an hour, up to 15 miles away, reading by reading; an airfield is compared with the nearest other airport, never its own report. A steady offset is taken out, and where both heights are known only the offset beyond 3 F that the height difference does not explain is counted.Full marks: within 1.5 F, allowing 0.1 F more for each mile to the reference. No marks: 6.5 F beyond that.
Instrument checksweight 15The share of its readings that pass a check. For an airfield, the check the forecast engine runs the next day: each reading against the stations around it, as weather services check their own. For any other station, a reading 20 F or more from its reference fails, unless the two stand 3,000 ft or more apart.Full marks: none failed. No marks: 5% failed.
Forecast checkweight 10How closely its temperature matched Storm Station's forecast for the same hours, checked the next day, for every airfield the forecast engine scores. A station whose readings stray far from a forecast its neighbours confirm is one to doubt.Full marks: within 2 F on average. No marks: 8 F.

A part is scored once the week holds 24 readings or comparisons for it. A part that cannot be measured where a station stands counts at the middle of its state's measured stations, so the station is neither lifted nor sunk by it. A part measured nowhere in the state is left out, and the others carry its weight.

From score to rank

Each state's stations are ranked by their score, to the tenth. At an equal score the longer record comes first: a station that sent 2,016 of 2,016 reports has shown more than one that sent 7 of 7. Then the faster arrival, then the shorter silence. Ties on all of them share a rank, as a race is scored: three stations tied for third are all third, and the next is sixth.

A station is ranked once its week holds enough reports to measure: 12, or 3 days for a gauge that reports once a day. The rank is made again every day, so a station that falls silent or starts to read wrong drops, and one that recovers climbs back. Every page shows the same ranking: a station's rank here, in its state's list and on its own page come from one run, and a new run reaches them together. Each station's page shows its score part by part, with the figures behind each.

The same figures as data

/api/ranks for a state and /api/rank for one station, its score in parts; the developer page has every field.