Live/247 Rank/Illinois

Illinois 24/7 Rank

Every station in Illinois 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.

1,393 stations ranked37.6% sent every report dueranked October 16, 2026page 1 of 6Illinois instrumentsIllinois 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 1,393 ranked here, 1,385 have a page of their own; the rest are platforms heard here that have not yet reported enough to be listed.

Every ranked station, first to last

1stLast

Each rank wears its colour: first in its state in bright green, last in deep red, and every rank between mixed along the band.

How they reported this week

The days behind it

7 days 30 days90 days

every report90 to 99%under 90%

Every station, ranked

Rank	Station	Score	Network	County	Received	Reports	Arrives in	Longest silence
1	PeoriaPIA	100.0	Airport	Peoria	100%	168 of 168	7 min	60 min
2	QuincyUIN	100.0	Airport	Adams	100%	168 of 168	7 min	60 min
3	LawrencevilleLWV	100.0	Airport	Knox	100%	168 of 168	8 min	60 min
4	ChicagoMDW	100.0	Airport	Cook	100%	168 of 168	8 min	60 min
4	Mattoon/CharlestMTO	100.0	Airport	Coles	100%	168 of 168	8 min	60 min
6	Chicago OHareORD	100.0	Airport	DuPage	100%	168 of 168	10 min	64 min
7	Chicago/LansingIGQ	99.9	Airport	Lake	99.8%	503 of 504	6 min	40 min
8	Champaign - WillardCMI	99.8	Airport	Champaign	100%	168 of 168	8 min	60 min
9	Litchfield3LF	99.8	Airport	Montgomery	99.8%	503 of 504	6 min	40 min
10	PalwaukeePWK	99.7	Airport	Cook	100%	168 of 168	9 min	60 min
11	Chicago/DupageDPA	99.6	Airport	DuPage	99.4%	167 of 168	9 min	2 h
12	Ohio River AT CairoCIRI2	99.5	Gauge	Alexander	100%	168 of 168	4 min	61 min
12	MetropolisMTRI2	99.5	Gauge	Massac	100%	168 of 168	4 min	61 min
12	Olmsted Lock And DamOLMI2	99.5	Gauge	Pulaski	100%	168 of 168	4 min	61 min
15	Wabash River At Memorial Bridge At Vincennes03343010	99.5	Gauge	Lawrence	100%	168 of 168	8 min	60 min
15	Illinois River At Morris05542500	99.5	Gauge	Grundy	100%	168 of 168	8 min	60 min
15	Rain Gage Near Goodenow412354087370001	99.5	Gauge	Will	100%	168 of 168	8 min	60 min
15	Naperville Township Hwy Division At Naperville414652088133800	99.5	Gauge	DuPage	100%	168 of 168	8 min	60 min
15	Spring Creek Reservoir Near Bloomingdale415737088031100	99.5	Gauge	DuPage	100%	168 of 168	8 min	60 min
20	Rain Gage At Naperville414702088104801	99.5	Gauge	DuPage	100%	168 of 168	8 min	60 min
20	Rain Gage At Wb Dupage River At Warrenville414903088101701	99.5	Gauge	DuPage	100%	168 of 168	8 min	60 min
20	Rain Gage At Wood Dale415817087591901	99.5	Gauge	DuPage	100%	168 of 168	8 min	60 min
23	Busse Woods Near Elk Grove Village420057088001700	99.5	Gauge	Cook	100%	168 of 168	8 min	60 min
24	Chicago/AuroraARR	99.5	Airport	Kane	100%	168 of 168	9 min	60 min
25	WaukeganUGN	99.5	Airport	Lake	100%	168 of 168	10 min	60 min
26	Central Illinois IlILX	99.5	Cooperative	Logan	100%	28 of 28	5 min	6.2 h
27	Romeoville WFOLOTI2	99.5	Cooperative	Will	100%	28 of 28	8 min	6.1 h
28	Chicago OHareORD	99.5	Gauge	Cook	100%	28 of 28	8 min	6.1 h
28	RockfordRFD	99.5	Gauge	Winnebago	100%	28 of 28	8 min	6.1 h
30	RantoulRANI2	99.5	Cooperative	Champaign	100%	7 of 7	5 min	24 h
31	CharlestonCRSI2	99.5	Cooperative	Coles	100%	7 of 7	14 min	25 h
32	Paris Water WorksPWWI2	99.5	Cooperative	Edgar	100%	7 of 7	15 min	24 h
33	Milstadt 2SWMSTI2	99.5	Cooperative	St. Clair	100%	7 of 7	15 min	24.8 h
34	Elgin WaterELGI2	99.5	Cooperative	Kane	100%	7 of 7	15 min	24 h
34	ElizabethEZBI2	99.5	Cooperative	Jo Daviess	100%	7 of 7	15 min	24 h
34	Joliet 2SW - Brandon RoadJETI2	99.5	Cooperative	Will	100%	7 of 7	15 min	24 h
37	AledoALEI2	99.5	Cooperative	Mercer	100%	7 of 7	15 min	25.4 h
38	GeneseoGINI2	99.5	Cooperative	Henry	100%	7 of 7	16 min	24 h
39	Embarras River AT NewtonNTNI2	99.5	Cooperative	Jasper	100%	7 of 7	22 min	25 h
40	Rock Island L/D 15RCKI2	99.5	Cooperative	Rock Island	100%	7 of 7	24 min	24 h
41	Illinois CityILNI2	99.5	Cooperative	Rock Island	100%	7 of 7	25 min	24 h
41	Park Forest WaterPKFI2	99.5	Cooperative	Cook	100%	7 of 7	25 min	24 h
43	Coal City 4NNW (Hydro)CTYI2	99.5	Cooperative	Grundy	100%	7 of 7	25 min	24 h
43	Elgin (Hydro)EGNI2	99.5	Cooperative	Kane	100%	7 of 7	25 min	24 h
43	GalesburgGBGI2	99.5	Cooperative	Knox	100%	7 of 7	25 min	24 h
43	HighlandHGHI2	99.5	Cooperative	Madison	100%	7 of 7	25 min	24 h
47	PanaPNAI2	99.5	Cooperative	Shelby	100%	7 of 7	25 min	25 h
48	Mount CarrollMTCI2	99.5	Cooperative	Carroll	100%	7 of 7	25 min	25.5 h
49	Anna 2 NNEANNI2	99.5	Cooperative	Union	100%	7 of 7	25 min	24 h
50	Moweaqua 2SMQUI2	99.5	Cooperative	Shelby	100%	7 of 7	25 min	24 h
50	New BostonNBOI2	99.5	Cooperative	Mercer	100%	7 of 7	25 min	24 h
50	ShermanSHRI2	99.5	Cooperative	Sangamon	100%	7 of 7	25 min	24 h
53	Hoffman Estates 1.6 SEIL-CK-278	99.5	Volunteer	Cook	100%	7 of 7	26 min	24 h
53	Morton Grove 1.2 WNWIL-CK-326	99.5	Volunteer	Cook	100%	7 of 7	26 min	24 h
53	Lincolnwood 1.8 EIL-CK-94	99.5	Volunteer	Cook	100%	7 of 7	26 min	24 h
53	Champaign 0.6 NNEIL-CP-111	99.5	Volunteer	Champaign	100%	7 of 7	26 min	24 h
53	Colona 0.5 ESEIL-HY-30	99.5	Volunteer	Henry	100%	7 of 7	26 min	24 h
53	Watseka 6.9 WNWIL-IR-14	99.5	Volunteer	Iroquois	100%	7 of 7	26 min	24 h
53	Buckley 4.0 ENEIL-IR-26	99.5	Volunteer	Iroquois	100%	7 of 7	26 min	24 h
53	Yorkville 4.5 NIL-KD-157	99.5	Volunteer	Kendall	100%	7 of 7	26 min	24 h
53	Batavia 1.5 WNWIL-KN-23	99.5	Volunteer	Kane	100%	7 of 7	26 min	24 h
53	St. Charles 6.0 NWIL-KN-67	99.5	Volunteer	Kane	100%	7 of 7	26 min	24 h
53	Ashton 0.4 SSWIL-LE-8	99.5	Volunteer	Lee	100%	7 of 7	26 min	24 h
53	Illiopolis 4.4 NNEIL-MA-34	99.5	Volunteer	Macon	100%	7 of 7	26 min	24 h
53	Brookport 7.3 ENEIL-MC-3	99.5	Volunteer	Massac	100%	7 of 7	26 min	24 h
53	Harvard 4.4 NNEIL-MCH-103	99.5	Volunteer	McHenry	100%	7 of 7	26 min	24 h
53	Lake In The Hills 0.4 SSEIL-MCH-117	99.5	Volunteer	McHenry	100%	7 of 7	26 min	24 h
53	Le Roy 1.8 WSWIL-MCL-45	99.5	Volunteer	McLean	100%	7 of 7	26 min	24 h
53	Bloomington 4.1 SWIL-MCL-81	99.5	Volunteer	McLean	100%	7 of 7	26 min	24 h
53	Highland 1.4 ESEIL-MD-46	99.5	Volunteer	Madison	100%	7 of 7	26 min	24 h
53	Jacksonville 1.3 NWIL-MG-19	99.5	Volunteer	Morgan	100%	7 of 7	26 min	24 h
53	Mascoutah 1.5 SSEIL-SC-26	99.5	Volunteer	St. Clair	100%	7 of 7	26 min	24 h
53	Lena 0.3 SSEIL-SP-31	99.5	Volunteer	Stephenson	100%	7 of 7	26 min	24 h
53	Manchester 0.1 SIL-ST-3	99.5	Volunteer	Scott	100%	7 of 7	26 min	24 h
53	Rushville 4.1 NEIL-SY-6	99.5	Volunteer	Schuyler	100%	7 of 7	26 min	24 h
53	Cobden 4.1 ENEIL-UN-8	99.5	Volunteer	Union	100%	7 of 7	26 min	24 h
53	Georgetown 0.5 NNWIL-VR-35	99.5	Volunteer	Vermilion	100%	7 of 7	26 min	24 h
53	Homer Glen 0.8 ENEIL-WL-16	99.5	Volunteer	Will	100%	7 of 7	26 min	24 h
53	Frankfort 1.3 ESEIL-WL-165	99.5	Volunteer	Will	100%	7 of 7	26 min	24 h
53	Braidwood 1.5 NEIL-WL-191	99.5	Volunteer	Will	100%	7 of 7	26 min	24 h
53	Rockford 3.8 NNWIL-WN-48	99.5	Volunteer	Winnebago	100%	7 of 7	26 min	24 h
53	Addieville 5.7 SWIL-WS-2	99.5	Volunteer	Washington	100%	7 of 7	26 min	24 h
83	St. Joseph 1.1 ENEIL-CP-137	99.5	Volunteer	Champaign	100%	7 of 7	26 min	25 h
84	Capron 0.1 NIL-BN-14	99.5	Volunteer	Boone	100%	7 of 7	26 min	24 h
84	Belvidere 5.0 NNWIL-BN-19	99.5	Volunteer	Boone	100%	7 of 7	26 min	24 h
84	Franklin Park 0.5 SSEIL-CK-345	99.5	Volunteer	Cook	100%	7 of 7	26 min	24 h
84	Rantoul 1.2 NEIL-CP-159	99.5	Volunteer	Champaign	100%	7 of 7	26 min	24 h
84	Aurora 3.6 SEIL-DP-16	99.5	Volunteer	DuPage	100%	7 of 7	26 min	24 h
84	Lombard 1.2 NIL-DP-173	99.5	Volunteer	DuPage	100%	7 of 7	26 min	24 h
84	West Salem 0.2 EIL-EW-5	99.5	Volunteer	Edwards	100%	7 of 7	26 min	24 h
84	St. Elmo 2.4 NNWIL-FY-2	99.5	Volunteer	Fayette	100%	7 of 7	26 min	24 h
84	Minooka 0.3 NEIL-GY-10	99.5	Volunteer	Grundy	100%	7 of 7	26 min	24 h
84	Morris 6.4 ESEIL-GY-16	99.5	Volunteer	Grundy	100%	7 of 7	26 min	24 h
84	Mazon 2.4 SEIL-GY-37	99.5	Volunteer	Grundy	100%	7 of 7	26 min	24 h
84	Colona 1.3 WNWIL-HY-27	99.5	Volunteer	Henry	100%	7 of 7	26 min	24 h
84	East Dubuque 1.7 SEIL-JD-11	99.5	Volunteer	Jo Daviess	100%	7 of 7	26 min	24 h
84	Geneva 1.3 NWIL-KN-121	99.5	Volunteer	Kane	100%	7 of 7	26 min	24 h
84	Elgin 2.5 WIL-KN-95	99.5	Volunteer	Kane	100%	7 of 7	26 min	24 h
84	Normal 1.4 WNWIL-MCL-66	99.5	Volunteer	McLean	100%	7 of 7	26 min	24 h
84	Edwardsville 0.9 WSWIL-MD-20	99.5	Volunteer	Madison	100%	7 of 7	26 min	24 h
84	Maryville 1.4 ENEIL-MD-39	99.5	Volunteer	Madison	100%	7 of 7	26 min	24 h
84	Taylor Ridge 1.1 NIL-RI-24	99.5	Volunteer	Rock Island	100%	7 of 7	26 min	24 h
84	Shelbyville 0.5 NEIL-SH-1	99.5	Volunteer	Shelby	100%	7 of 7	26 min	24 h
84	Hoopeston 0.6 EIL-VR-25	99.5	Volunteer	Vermilion	100%	7 of 7	26 min	24 h
84	Fithian 0.6 NNWIL-VR-42	99.5	Volunteer	Vermilion	100%	7 of 7	26 min	24 h
84	Bult Field-Monee 4.9 SEIL-WL-149	99.5	Volunteer	Will	100%	7 of 7	26 min	24 h
107	Hardin 3.9 SIL-CH-2	99.5	Volunteer	Calhoun	100%	7 of 7	26 min	25 h
107	Earlville 4.8 NNEIL-DK-29	99.5	Volunteer	De Kalb	100%	7 of 7	26 min	25 h
107	Sleepy Hollow 0.7 WIL-KN-118	99.5	Volunteer	Kane	100%	7 of 7	26 min	25 h
107	Homer Glen 0.7 NNEIL-WL-131	99.5	Volunteer	Will	100%	7 of 7	26 min	25 h
111	Watson 0.3 NEIL-EF-10	99.5	Volunteer	Effingham	100%	7 of 7	26 min	26 h
111	Carlock 2.1 NNEIL-MCL-80	99.5	Volunteer	McLean	100%	7 of 7	26 min	26 h
111	Bethalto 0.9 NWIL-MD-54	99.5	Volunteer	Madison	100%	7 of 7	26 min	26 h
111	Villa Ridge 2.1 ESEIL-PL-4	99.5	Volunteer	Pulaski	100%	7 of 7	26 min	26 h
115	Harwood Heights 0.4 NNEIL-CK-285	99.5	Volunteer	Cook	100%	7 of 7	26 min	24 h
115	Urbana 0.5 WIL-CP-151	99.5	Volunteer	Champaign	100%	7 of 7	26 min	24 h
115	Carbon Hill 3.1 NIL-GY-1	99.5	Volunteer	Grundy	100%	7 of 7	26 min	24 h
115	Yorkville 0.9 SSWIL-KD-110	99.5	Volunteer	Kendall	100%	7 of 7	26 min	24 h
115	Oswego 1.1 ESEIL-KD-126	99.5	Volunteer	Kendall	100%	7 of 7	26 min	24 h
115	Batavia 3.4 WSWIL-KN-128	99.5	Volunteer	Kane	100%	7 of 7	26 min	24 h
115	Metropolis 7.1 NIL-MC-6	99.5	Volunteer	Massac	100%	7 of 7	26 min	24 h
115	Cary 0.9 WIL-MCH-118	99.5	Volunteer	McHenry	100%	7 of 7	26 min	24 h
115	Marengo 0.7 NNEIL-MCH-87	99.5	Volunteer	McHenry	100%	7 of 7	26 min	24 h
115	Hudson 0.8 SIL-MCL-86	99.5	Volunteer	McLean	100%	7 of 7	26 min	24 h
115	Lacon 4.3 NEIL-MH-8	99.5	Volunteer	Marshall	100%	7 of 7	26 min	24 h
115	Belleville 1.9 WNWIL-SC-37	99.5	Volunteer	St. Clair	100%	7 of 7	26 min	24 h
115	Swansea 0.7 ESEIL-SC-40	99.5	Volunteer	St. Clair	100%	7 of 7	26 min	24 h
115	Congerville 0.6 WSWIL-WF-16	99.5	Volunteer	Woodford	100%	7 of 7	26 min	24 h
115	Creal Springs 2.2 WIL-WM-18	99.5	Volunteer	Williamson	100%	7 of 7	26 min	24 h
130	Edwardsville 1.2 ENEIL-MD-45	99.5	Volunteer	Madison	100%	7 of 7	26 min	25 h
130	Morrison 3.2 EIL-WD-5	99.5	Volunteer	Whiteside	100%	7 of 7	26 min	25 h
130	New Lenox 1.8 SEIL-WL-63	99.5	Volunteer	Will	100%	7 of 7	26 min	25 h
133	Bartelso 1.7 EIL-CT-10	99.5	Volunteer	Clinton	100%	7 of 7	26 min	24 h
133	Woodridge 0.3 SWIL-DP-198	99.5	Volunteer	DuPage	100%	7 of 7	26 min	24 h
133	Goreville 3.8 NEIL-JH-2	99.5	Volunteer	Johnson	100%	7 of 7	26 min	24 h
133	Vienna 5.3 NNWIL-JH-4	99.5	Volunteer	Johnson	100%	7 of 7	26 min	24 h
133	Aurora 3.5 ESEIL-KN-115	99.5	Volunteer	DuPage	100%	7 of 7	26 min	24 h
133	Elgin 1.0 SIL-KN-9	99.5	Volunteer	Kane	100%	7 of 7	26 min	24 h
133	Crystal Lake 1.0 WSWIL-MCH-83	99.5	Volunteer	McHenry	100%	7 of 7	26 min	24 h
133	Washington 2.3 WIL-TZ-49	99.5	Volunteer	Tazewell	100%	7 of 7	26 min	24 h
133	Cobden 0.8 SSEIL-UN-6	99.5	Volunteer	Union	100%	7 of 7	26 min	24 h
142	Champaign 2.5 SIL-CP-62	99.5	Volunteer	Champaign	100%	7 of 7	26 min	25 h
143	Urbana 1.8 SIL-CP-167	99.5	Volunteer	Champaign	100%	7 of 7	26 min	24 h
144	Camp Point 1.3 WNWIL-AD-24	99.5	Volunteer	Adams	100%	7 of 7	26 min	24 h
145	NormalNRLI2	99.5	Cooperative	Mclean	100%	7 of 7	34 min	24 h
146	FreeportFEEI2	99.5	Cooperative	Stephenson	100%	7 of 7	34 min	24.3 h
147	Ellis GroveKNLI2	99.5	Cooperative	Randolph	100%	7 of 7	34 min	24.5 h
148	Peoria 5NWPRWI2	99.5	Cooperative	Peoria	100%	7 of 7	35 min	25 h
149	KewaneeKEWI2	99.5	Cooperative	Henry	100%	7 of 7	35 min	24 h
150	LovingtonLOVI2	99.5	Cooperative	Moultrie	100%	7 of 7	35 min	25 h
151	Aurora WaterARRI2	99.5	Cooperative	Kane	100%	7 of 7	35 min	24 h
152	SidellSIDI2	99.5	Cooperative	Vermilion	100%	7 of 7	35 min	25 h
153	DanvilleDANI2	99.5	Cooperative	Vermilion	100%	7 of 7	35 min	24 h
154	MCCI2MCCI2	99.5	DCP	-	100%	7 of 7	37 min	24 h
154	THRI2THRI2	99.5	DCP	-	100%	7 of 7	37 min	24 h
156	TuscolaTUSI2	99.5	Cooperative	Douglas	100%	7 of 7	45 min	24 h
157	MattoonMOOI2	99.5	Cooperative	Coles	100%	7 of 7	45 min	27.7 h
158	Steward 3SSTWI2	99.5	Cooperative	Lee	100%	7 of 7	45 min	24 h
159	MorrisonvilleMRVI2	99.5	Cooperative	Christian	100%	7 of 7	45 min	26 h
160	AvonAVOI2	99.5	Cooperative	Fulton	100%	7 of 7	52 min	24 h
160	FairfieldFFDI2	99.5	Cooperative	Wayne	100%	7 of 7	52 min	24 h
162	Bloomington WaterworksBMGI2	99.5	Cooperative	Mclean	100%	7 of 7	54 min	25 h
163	HennepinHNPI2	99.5	Cooperative	Putnam	100%	7 of 7	55 min	24 h
163	KnoxvilleKNXI2	99.5	Cooperative	Knox	100%	7 of 7	55 min	24 h
165	La HarpeLAHI2	99.5	Cooperative	Hancock	100%	7 of 7	55 min	24 h
166	Woodstock 5NWWODI2	99.5	Cooperative	McHenry	100%	7 of 7	55 min	24 h
167	WindsorWISI2	99.5	Cooperative	Shelby	100%	7 of 7	65 min	24 h
168	Shawneetown 3WSWSWNI2	99.5	Cooperative	Gallatin	100%	7 of 7	82 min	25 h
169	Canton 1 ESECANI2	99.5	Cooperative	Fulton	100%	7 of 7	85 min	24 h
170	Freeport 4.3 WIL-SP-28	99.5	Volunteer	Stephenson	100%	7 of 7	85 min	24 h
171	Arthur 0.8 NNWIL-MU-1	99.5	Volunteer	Moultrie	100%	7 of 7	85 min	27 h
172	Evanston 1.2 SIL-CK-371	99.5	Volunteer	Cook	100%	7 of 7	85 min	24 h
172	Elk Grove Village 2.2 WSWIL-CK-75	99.5	Volunteer	Cook	100%	7 of 7	85 min	24 h
172	Simpson 1.8 NWIL-JH-5	99.5	Volunteer	Johnson	100%	7 of 7	85 min	24 h
172	Aurora 2.8 WSWIL-KN-123	99.5	Volunteer	Kane	100%	7 of 7	85 min	24 h
176	Yorkville 3.1 NIL-KD-143	99.5	Volunteer	Kendall	100%	7 of 7	85 min	25 h
177	Lincoln 2.0 ENEIL-LG-49	99.5	Volunteer	Logan	100%	7 of 7	85 min	26 h
178	Palatine 1.2 NWIL-CK-346	99.5	Volunteer	Cook	100%	7 of 7	86 min	24 h
178	Edinburg 3.0 WIL-CN-4	99.5	Volunteer	Christian	100%	7 of 7	86 min	24 h
178	Mahomet 1.7 NNEIL-CP-59	99.5	Volunteer	Champaign	100%	7 of 7	86 min	24 h
178	Naperville 2.4 SEIL-DP-78	99.5	Volunteer	DuPage	100%	7 of 7	86 min	24 h
178	Oswego 1.7 WSWIL-KD-127	99.5	Volunteer	Kendall	100%	7 of 7	86 min	24 h
178	Oswego 3.8 WSWIL-KD-177	99.5	Volunteer	Kendall	100%	7 of 7	86 min	24 h
178	Winthrop Harbor 1.7 WIL-LK-143	99.5	Volunteer	Lake	100%	7 of 7	86 min	24 h
178	Mundelein 1.6 WNWIL-LK-74	99.5	Volunteer	Lake	100%	7 of 7	86 min	24 h
178	McNabb 1.4 NWIL-PM-6	99.5	Volunteer	Putnam	100%	7 of 7	86 min	24 h
178	South Beloit 1.5 ESEIL-WN-41	99.5	Volunteer	Winnebago	100%	7 of 7	86 min	24 h
188	Clinton 0.4 WSWIL-DW-7	99.5	Volunteer	De Witt	100%	7 of 7	86 min	25 h
188	Murphysboro 2.8 NNEIL-JK-19	99.5	Volunteer	Jackson	100%	7 of 7	86 min	25 h
188	Bloomington 5.0 WSWIL-MCL-39	99.5	Volunteer	McLean	100%	7 of 7	86 min	25 h
188	Peoria 3.4 WNWIL-PR-8	99.5	Volunteer	Peoria	100%	7 of 7	86 min	25 h
192	Oak Lawn 1.6 WNWIL-CK-211	99.5	Volunteer	Cook	100%	7 of 7	86 min	24 h
192	Aurora 1.9 ESEIL-DP-211	99.5	Volunteer	DuPage	100%	7 of 7	86 min	24 h
192	Crystal Lake 1.9 SWIL-MCH-101	99.5	Volunteer	McHenry	100%	7 of 7	86 min	24 h
192	Troy 1.9 SIL-MD-41	99.5	Volunteer	Madison	100%	7 of 7	86 min	24 h
196	Park Ridge 0.7 WNWIL-CK-192	99.5	Volunteer	Cook	100%	7 of 7	86 min	25 h
196	Oak Park 1.3 NNEIL-CK-74	99.5	Volunteer	Cook	100%	7 of 7	86 min	25 h
196	Tolono 0.4 ESEIL-CP-179	99.5	Volunteer	Champaign	100%	7 of 7	86 min	25 h
199	Morris 4.5 NWIL-GY-34	99.5	Volunteer	Grundy	100%	7 of 7	86 min	26 h
200	Palatine 1.5 NEIL-CK-406	99.5	Volunteer	Cook	100%	7 of 7	86 min	24 h
200	Sterling 4.3 NEIL-LE-5	99.5	Volunteer	Lee	100%	7 of 7	86 min	24 h
200	Henry 1.4 SWIL-MH-5	99.5	Volunteer	Marshall	100%	7 of 7	86 min	24 h
200	Joliet 0.8 EIL-WL-174	99.5	Volunteer	Will	100%	7 of 7	86 min	24 h
204	Gurnee 1.6 WIL-LK-42	99.5	Volunteer	Lake	100%	7 of 7	86 min	25 h
205	Amboy 0.5 SSWIL-LE-22	99.5	Volunteer	Lee	100%	7 of 7	86 min	27 h
206	Champaign 0.3 ESEIL-CP-89	99.5	Volunteer	Champaign	100%	7 of 7	86 min	24 h
206	Carbondale 6.2 SIL-JK-38	99.5	Volunteer	Jackson	100%	7 of 7	86 min	24 h
206	Bloomington 3.7 NEIL-MCL-72	99.5	Volunteer	McLean	100%	7 of 7	86 min	24 h
206	Edwardsville 5.5 EIL-MD-53	99.5	Volunteer	Madison	100%	7 of 7	86 min	24 h
206	Plainfield 3.0 ESEIL-WL-58	99.5	Volunteer	Will	100%	7 of 7	86 min	24 h
211	Lanark 5.3 NIL-CR-20	99.5	Volunteer	Carroll	100%	7 of 7	86 min	25 h
212	Walnut 5.3 ENEIL-BU-11	99.5	Volunteer	Bureau	100%	7 of 7	86 min	24 h
212	La Grange Park 0.7 SSWIL-CK-98	99.5	Volunteer	Cook	100%	7 of 7	86 min	24 h
212	Teutopolis 3.4 SEIL-EF-9	99.5	Volunteer	Effingham	100%	7 of 7	86 min	24 h
212	Albion 1.4 EIL-EW-4	99.5	Volunteer	Edwards	100%	7 of 7	86 min	24 h
212	Gibson City 3.0 WNWIL-FD-9	99.5	Volunteer	Ford	100%	7 of 7	86 min	24 h
212	Plainfield 4.8 SWIL-KD-34	99.5	Volunteer	Kendall	100%	7 of 7	86 min	24 h
212	Batavia 2.5 WIL-KN-161	99.5	Volunteer	Kane	100%	7 of 7	86 min	24 h
212	Galesburg 5.7 EIL-KX-26	99.5	Volunteer	Knox	100%	7 of 7	86 min	24 h
212	Bloomington 2.1 SWIL-MCL-85	99.5	Volunteer	McLean	100%	7 of 7	86 min	24 h
212	Eagarville 0.2 SIL-MP-22	99.5	Volunteer	Macoupin	100%	7 of 7	86 min	24 h
212	Springfield 2.2 SEIL-SG-66	99.5	Volunteer	Sangamon	100%	7 of 7	86 min	24 h
212	Collison 2.0 SEIL-VR-46	99.5	Volunteer	Vermilion	100%	7 of 7	86 min	24 h
224	Glencoe 0.1 NWIL-CK-53	99.5	Volunteer	Cook	100%	7 of 7	86 min	25 h
224	Colchester 3.5 NEIL-MCD-7	99.5	Volunteer	McDonough	100%	7 of 7	86 min	25 h
224	Bloomington 2.7 NEIL-MCL-17	99.5	Volunteer	McLean	100%	7 of 7	86 min	25 h
224	Carterville 1.6 SSEIL-WM-14	99.5	Volunteer	Williamson	100%	7 of 7	86 min	25 h
228	Geneseo 2.0 NWIL-HY-8	99.5	Volunteer	Henry	100%	7 of 7	86 min	26 h
228	Bloomington 3.8 SWIL-MCL-50	99.5	Volunteer	McLean	100%	7 of 7	86 min	26 h
230	Quincy 4.4 ESEIL-AD-16	99.5	Volunteer	Adams	100%	7 of 7	86 min	24 h
230	Elmhurst 0.4 SWIL-DP-38	99.5	Volunteer	DuPage	100%	7 of 7	86 min	24 h
230	Ottawa 1.3 NWIL-LS-1	99.5	Volunteer	La Salle	100%	7 of 7	86 min	24 h
230	Wilmington 2.6 SEIL-WL-73	99.5	Volunteer	Will	100%	7 of 7	86 min	24 h
234	Oswego 0.3 EIL-KD-136	99.5	Volunteer	Kendall	100%	7 of 7	86 min	25 h
234	Sumner 1.0 SWIL-LW-6	99.5	Volunteer	Lawrence	100%	7 of 7	86 min	25 h
234	Danville 0.6 NWIL-VR-14	99.5	Volunteer	Vermilion	100%	7 of 7	86 min	25 h
237	Bloomingdale 1.2 ESEIL-DP-150	99.5	Volunteer	DuPage	100%	7 of 7	86 min	26 h
237	Streator 5.0 NWIL-LS-78	99.5	Volunteer	La Salle	100%	7 of 7	86 min	26 h
237	Decatur 3.0 WIL-MA-41	99.5	Volunteer	Macon	100%	7 of 7	86 min	26 h
237	Danville 4.2 NWIL-VR-33	99.5	Volunteer	Vermilion	100%	7 of 7	86 min	26 h
241	Bridgeview 1.3 NNWIL-CK-12	99.5	Volunteer	Cook	100%	7 of 7	86 min	24 h
241	Schaumburg 2.0 EIL-CK-131	99.5	Volunteer	Cook	100%	7 of 7	86 min	24 h
241	Elk Grove Village 0.6 ESEIL-CK-63	99.5	Volunteer	Cook	100%	7 of 7	86 min	24 h
241	Morrisonville 0.5 SSEIL-CN-13	99.5	Volunteer	Christian	100%	7 of 7	86 min	24 h
241	Champaign 0.4 SSEIL-CP-173	99.5	Volunteer	Champaign	100%	7 of 7	86 min	24 h
241	Arenzville 5.3 NNEIL-CS-3	99.5	Volunteer	Cass	100%	7 of 7	86 min	24 h
241	Aurora 3.8 SEIL-DP-101	99.5	Volunteer	DuPage	100%	7 of 7	86 min	24 h
241	Wheaton 2.0 NNEIL-DP-132	99.5	Volunteer	DuPage	100%	7 of 7	86 min	24 h
241	Farmer City 2.6 WSWIL-DW-8	99.5	Volunteer	De Witt	100%	7 of 7	86 min	24 h
241	Paris 6.7 SIL-ED-15	99.5	Volunteer	Edgar	100%	7 of 7	86 min	24 h

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.