Live/247 Rank/Michigan

Michigan 24/7 Rank

Every station in Michigan 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.

979 stations ranked33.8% sent every report dueranked October 16, 2026page 1 of 4Michigan instrumentsMichigan 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 979 ranked here, 967 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 days30 days90 days

every report90 to 99%under 90%

Every station, ranked

Rank	Station	Score	Network	County	Received	Reports	Arrives in	Longest silence
1	Copper HarborP59	100.0	Airport	Keweenaw	100%	168 of 168	6 min	60 min
2	Detroit/WillowYIP	99.9	Airport	Wayne	100%	168 of 168	9 min	68 min
3	GaylordGLR	99.9	Airport	Otsego	100%	168 of 168	10 min	60 min
4	PontiacPTK	99.9	Airport	Oakland	100%	168 of 168	10 min	60 min
5	Chippewa INTLCIU	99.9	Airport	Chippewa	100%	168 of 168	11 min	68 min
6	Detroit/WayneDTW	99.8	Airport	Wayne	100%	168 of 168	10 min	67 min
7	Battle CreekBTL	99.8	Airport	Calhoun	100%	168 of 168	11 min	67 min
8	AdrianADG	99.7	Airport	Fulton	100%	168 of 168	9 min	68 min
9	MenomineeMNM	99.7	Airport	Marinette	100%	168 of 168	10 min	66 min
10	EscanabaESC	99.7	Airport	Delta	100%	168 of 168	11 min	68 min
11	KalamazooAZO	99.7	Airport	Kalamazoo	100%	168 of 168	11 min	67 min
12	FreemontFFX	99.6	Airport	Muskegon	99.8%	503 of 504	12 min	40 min
12	Three RiversHAI	99.6	Airport	St. Joseph	99.8%	503 of 504	12 min	40 min
12	TroyVLL	99.6	Airport	Oakland	99.8%	503 of 504	12 min	40 min
15	Sturgis/KirschIRS	99.5	Airport	St. Joseph	99.8%	503 of 504	12 min	39 min
16	LansingLAN	99.4	Airport	Clinton	100%	168 of 168	7 min	70 min
17	Detroit/City AirDET	99.4	Airport	Wayne	100%	168 of 168	11 min	60 min
18	Houghton LakeHTL	99.3	Airport	Roscommon	100%	168 of 168	8 min	70 min
19	SaginawMBS	99.3	Airport	Saginaw	100%	168 of 168	10 min	70 min
20	HillsdaleJYM	99.3	Airport	Hillsdale	99.8%	503 of 504	12 min	41 min
21	Traverse CitTVC	99.2	Airport	Grand Traverse	100%	168 of 168	8 min	60 min
22	Jackson/ReynoldsJXN	99.2	Airport	Jackson	100%	168 of 168	11 min	67 min
23	Berrien Springs DamBSDM4	99.2	Gauge	Berrien	100%	28 of 28	13 min	6.1 h
23	Buchanan DamBUDM4	99.2	Gauge	Berrien	100%	28 of 28	13 min	6.1 h
23	Saint Joseph River Michigan At Constantine DamCONM4	99.2	Gauge	St Joseph	100%	28 of 28	13 min	6.1 h
23	Mottville DamMTDM4	99.2	Gauge	St Joseph	100%	28 of 28	13 min	6.1 h
27	Sault Ste MarieSSMM4	99.2	Cooperative	Chippewa	100%	7 of 7	11 min	25.5 h
28	ArnoldAROM4	99.2	Cooperative	Marquette	100%	7 of 7	11 min	24 h
28	Traverse City 5ESETCEM4	99.2	Cooperative	Grand Traverse	100%	7 of 7	11 min	24 h
30	FrankfortFRKM4	99.2	Cooperative	Benzie	100%	7 of 7	11 min	24.1 h
31	ManchesterMCHM4	99.2	Cooperative	Washtenaw	100%	7 of 7	13 min	24.6 h
32	Garden CornersGDCM4	99.2	Cooperative	Delta	100%	7 of 7	18 min	24 h
33	Durand WWTPDRNM4	99.2	Cooperative	Shiawassee	100%	7 of 7	20 min	24 h
34	Ann Arbor SEAASM4	99.2	Cooperative	Washtenaw	100%	7 of 7	21 min	24 h
35	Frankenmuth 1SEFKMM4	99.2	Cooperative	Saginaw	100%	7 of 7	21 min	27.3 h
36	PetoskeyPETM4	99.2	Cooperative	Emmet	100%	7 of 7	21 min	24 h
37	HollandHOLM4	99.2	Cooperative	Ottawa	100%	7 of 7	21 min	25 h
38	Eaton RapidsETNM4	99.2	Cooperative	Eaton	100%	7 of 7	21 min	24 h
38	Linden WWTPLIDM4	99.2	Cooperative	Genesee	100%	7 of 7	21 min	24 h
40	Bellevue 1.9 ENEMI-ET-23	99.2	Volunteer	Eaton	100%	7 of 7	26 min	24 h
41	Baroda 1.3 WMI-BN-28	99.2	Volunteer	Berrien	100%	7 of 7	26 min	24 h
41	Iron Mountain 1.1 WMI-DC-6	99.2	Volunteer	Dickinson	100%	7 of 7	26 min	24 h
41	Davison 3.4 NNWMI-GN-34	99.2	Volunteer	Genesee	100%	7 of 7	26 min	24 h
41	Traverse City 4.7 ESEMI-GT-25	99.2	Volunteer	Grand Traverse	100%	7 of 7	26 min	24 h
41	East Tawas 0.8 WSWMI-IC-3	99.2	Volunteer	Iosco	100%	7 of 7	26 min	24 h
41	Kalkaska 1.5 WNWMI-KK-5	99.2	Volunteer	Kalkaska	100%	7 of 7	26 min	24 h
41	Forest Hills 2.6 SSEMI-KN-137	99.2	Volunteer	Kent	100%	7 of 7	26 min	24 h
41	Kalamazoo 6.0 SWMI-KZ-1	99.2	Volunteer	Kalamazoo	100%	7 of 7	26 min	24 h
41	Howell 6.0 SMI-LV-49	99.2	Volunteer	Livingston	100%	7 of 7	26 min	24 h
41	Roseville 1.7 ENEMI-MB-33	99.2	Volunteer	Macomb	100%	7 of 7	26 min	24 h
41	Menominee 4.1 NWMI-MM-8	99.2	Volunteer	Menominee	100%	7 of 7	26 min	24 h
41	Montague 8.1 NWMI-OC-2	99.2	Volunteer	Oceana	100%	7 of 7	26 min	24 h
41	Ortonville 2.3 SMI-OK-87	99.2	Volunteer	Oakland	100%	7 of 7	26 min	24 h
41	Rogers City 0.2 WSWMI-PI-1	99.2	Volunteer	Presque Isle	100%	7 of 7	26 min	24 h
55	Fenton 6.2 WSWMI-LV-26	99.2	Volunteer	Livingston	100%	7 of 7	26 min	25 h
55	Paw Paw 3.6 NNEMI-VB-4	99.2	Volunteer	Van Buren	100%	7 of 7	26 min	25 h
57	Battle Creek 11.7 NNWMI-BR-22	99.2	Volunteer	Barry	100%	7 of 7	26 min	24 h
57	Mackinaw City 1.1 ENEMI-CB-7	99.2	Volunteer	Cheboygan	100%	7 of 7	26 min	24 h
57	Garden Corners 0.8 NWMI-DL-1	99.2	Volunteer	Delta	100%	7 of 7	26 min	24 h
57	Davison 1.8 SWMI-GN-37	99.2	Volunteer	Genesee	100%	7 of 7	26 min	24 h
57	Williamston 3.8 NNWMI-IH-60	99.2	Volunteer	Ingham	100%	7 of 7	26 min	24 h
57	Mount Pleasant 7.0 ENEMI-IS-11	99.2	Volunteer	Isabella	100%	7 of 7	26 min	24 h
57	Sparta 0.3 NEMI-KN-121	99.2	Volunteer	Kent	100%	7 of 7	26 min	24 h
57	Grand Rapids 3.1 NNEMI-KN-8	99.2	Volunteer	Kent	100%	7 of 7	26 min	24 h
57	Canton 2.7 NMI-WY-125	99.2	Volunteer	Wayne	100%	7 of 7	26 min	24 h
66	St Clair Shores 2.5 NMI-MB-71	99.2	Volunteer	Macomb	100%	7 of 7	26 min	25 h
67	Belmont 1.0 WNWMI-KN-65	99.2	Volunteer	Kent	100%	7 of 7	26 min	24 h
67	Waterford 1.2 SSWMI-OK-192	99.2	Volunteer	Oakland	100%	7 of 7	26 min	24 h
67	Roscommon 4.2 WSWMI-RS-11	99.2	Volunteer	Roscommon	100%	7 of 7	26 min	24 h
70	St. Joseph 2.8 SSEMI-BN-24	99.2	Volunteer	Berrien	100%	7 of 7	26 min	25 h
70	Paw Paw 2.0 NEMI-VB-13	99.2	Volunteer	Van Buren	100%	7 of 7	26 min	25 h
72	Sparta 5.7 ENEMI-KN-126	99.2	Volunteer	Kent	100%	7 of 7	26 min	26 h
73	Au Train 6.3 NWMI-AG-14	99.2	Volunteer	Alger	100%	7 of 7	26 min	25 h
74	East Jordan 2.1 NNWMI-CX-7	99.2	Volunteer	Charlevoix	100%	7 of 7	26 min	25 h
75	FremontFREM4	99.2	Cooperative	Newaygo	100%	7 of 7	28 min	24 h
76	AlgonacAGCM4	99.2	Cooperative	St Clair	100%	7 of 7	28 min	24 h
77	East JordanEJNM4	99.2	Cooperative	Charlevoix	100%	7 of 7	28 min	25 h
78	Bad AxeBDAM4	99.2	Cooperative	Huron	100%	7 of 7	30 min	25.8 h
79	Oakdale Regional CenterLPRM4	99.2	Cooperative	Lapeer	100%	7 of 7	30 min	24 h
80	Mio WWTPMYOM4	99.2	Cooperative	Oscoda	100%	7 of 7	30 min	24 h
81	CharlevoixCHRM4	99.2	Cooperative	Charlevoix	100%	7 of 7	31 min	24 h
81	Ionia 3WIOAM4	99.2	Cooperative	Ionia	100%	7 of 7	31 min	24 h
83	LapeerLPEM4	99.2	Cooperative	Lapeer	100%	7 of 7	31 min	25.5 h
84	Site 3SAGM4	99.2	Cooperative	Saginaw	100%	7 of 7	31 min	24 h
85	Hale Loud DamHALM4	99.2	Cooperative	Iosco	100%	7 of 7	31 min	24 h
86	SalineSLNM4	99.2	Cooperative	Washtenaw	100%	7 of 7	31 min	25 h
87	Dearborn No.2DBNM4	99.2	Cooperative	Wayne	100%	7 of 7	31 min	27 h
88	Saint JohnsSTJM4	99.2	Cooperative	Clinton	100%	7 of 7	36 min	24.4 h
89	FarmingtonFARM4	99.2	Cooperative	Oakland	100%	7 of 7	38 min	24 h
90	Cass City 1 SSWCSSM4	99.2	Cooperative	Tuscola	100%	7 of 7	41 min	24 h
91	EscanabaESAM4	99.2	Gauge	Delta	100%	7 of 7	43 min	24 h
92	KearsargeKSGM4	99.2	Cooperative	Houghton	100%	7 of 7	48 min	26 h
93	Hale 5 SSWHLMM4	99.2	Cooperative	Iosco	100%	7 of 7	51 min	24 h
94	IronwoodIWOM4	99.2	Cooperative	Gogebic	100%	7 of 7	51 min	24 h
95	Beulah 7SSWBEUM4	99.2	Cooperative	Benzie	100%	7 of 7	51 min	24 h
95	East Grand RapidsEGRM4	99.2	Cooperative	Kent	100%	7 of 7	51 min	24 h
97	Green Garden No.2GGRM4	99.2	Cooperative	Marquette	100%	7 of 7	57 min	25.2 h
98	Grand Rapids WFOGRRM4	99.2	Cooperative	Kent	100%	7 of 7	60 min	24 h
99	Michigamme 3WNWMIEM4	99.2	Cooperative	Baraga	100%	7 of 7	61 min	24 h
100	West BranchWBRM4	99.2	Cooperative	Ogemaw	100%	7 of 7	68 min	24 h
101	ClarksburgCLKM4	99.2	Cooperative	Marquette	100%	7 of 7	71 min	24 h
101	Fife LakeFLAM4	99.2	Cooperative	Grand Traverse	100%	7 of 7	71 min	24 h
103	Water WorksBGRM4	99.2	Cooperative	Mecosta	100%	7 of 7	71 min	24 h
103	GoodrichGODM4	99.2	Cooperative	Genesee	100%	7 of 7	71 min	24 h
105	Manistique WWTPMTQM4	99.2	Cooperative	Schoolcraft	100%	7 of 7	81 min	24 h
106	Midland 1.5 NNEMI-MD-10	99.2	Volunteer	Midland	100%	7 of 7	85 min	24 h
107	Kingsford 1.4 SEMI-DC-10	99.2	Volunteer	Dickinson	100%	7 of 7	85 min	25 h
107	White Cloud 7.5 ENEMI-NW-8	99.2	Volunteer	Newaygo	100%	7 of 7	85 min	25 h
109	Manistique 2.7 NWMI-SH-1	99.2	Volunteer	Schoolcraft	100%	7 of 7	85 min	27 h
110	Shelby 2.3 WNWMI-MB-107	99.2	Volunteer	Macomb	100%	7 of 7	85 min	24 h
111	Caledonia 2.4 NNWMI-KN-140	99.2	Volunteer	Kent	100%	7 of 7	86 min	25 h
112	Walker 5.1 WMI-OW-63	99.2	Volunteer	Ottawa	100%	7 of 7	86 min	24 h
113	Holly 6.6 NEMI-OK-148	99.2	Volunteer	Oakland	100%	7 of 7	86 min	25 h
113	Ann Arbor 2.1 WNWMI-WS-11	99.2	Volunteer	Washtenaw	100%	7 of 7	86 min	25 h
113	Ann Arbor 1.9 WMI-WS-81	99.2	Volunteer	Washtenaw	100%	7 of 7	86 min	25 h
116	West Branch 2.1 SSWMI-OG-6	99.2	Volunteer	Ogemaw	100%	7 of 7	86 min	24 h
117	Detroit 4.4 SMI-WY-38	99.2	Volunteer	Wayne	100%	7 of 7	86 min	25 h
118	Bay City 0.9 NEMI-BY-12	99.2	Volunteer	Bay	100%	7 of 7	86 min	24 h
118	Dearborn Heights 1.8 NWMI-WY-43	99.2	Volunteer	Wayne	100%	7 of 7	86 min	24 h
120	Kingsley 2.7 ENEMI-GT-21	99.2	Volunteer	Grand Traverse	100%	7 of 7	86 min	25 h
121	Buchanan 1.4 ESEMI-BN-3	99.2	Volunteer	Berrien	100%	7 of 7	86 min	24 h
121	Bay City 4.4 NMI-BY-9	99.2	Volunteer	Bay	100%	7 of 7	86 min	24 h
121	Niles 3.5 EMI-CS-5	99.2	Volunteer	Cass	100%	7 of 7	86 min	24 h
121	East Grand Rapids 0.7 SSWMI-KN-7	99.2	Volunteer	Kent	100%	7 of 7	86 min	24 h
121	Kalamazoo 1.6 WSWMI-KZ-32	99.2	Volunteer	Kalamazoo	100%	7 of 7	86 min	24 h
121	Shelby 0.4 SSEMI-MB-7	99.2	Volunteer	Macomb	100%	7 of 7	86 min	24 h
121	Plymouth 5.4 WMI-WS-3	99.2	Volunteer	Washtenaw	100%	7 of 7	86 min	24 h
121	Dexter 2.2 SEMI-WS-31	99.2	Volunteer	Washtenaw	100%	7 of 7	86 min	24 h
121	Ann Arbor 6.4 NNEMI-WS-58	99.2	Volunteer	Washtenaw	100%	7 of 7	86 min	24 h
130	St. Joseph 1.5 SSEMI-BN-13	99.2	Volunteer	Berrien	100%	7 of 7	86 min	25 h
130	Sault Ste. Marie 2.2 EMI-CP-14	99.2	Volunteer	Chippewa	100%	7 of 7	86 min	25 h
132	Jonesville 5.9 ENEMI-HL-4	99.2	Volunteer	Hillsdale	100%	7 of 7	86 min	26 h
132	Marquette 6.1 SSWMI-MQ-30	99.2	Volunteer	Marquette	100%	7 of 7	86 min	26 h
134	Hillsdale 2.5 ESEMI-HL-15	99.2	Volunteer	Hillsdale	100%	7 of 7	86 min	24 h
134	Davisburg 1.3 ESEMI-OK-66	99.2	Volunteer	Oakland	100%	7 of 7	86 min	24 h
136	Durand 6.2 WNWMI-SW-5	99.2	Volunteer	Shiawassee	100%	7 of 7	86 min	25 h
137	Fenton 5.6 WSWMI-LV-8	99.2	Volunteer	Livingston	100%	7 of 7	86 min	32 h
138	Livonia 1.5 SWMI-WY-174	99.2	Volunteer	Wayne	100%	7 of 7	86 min	24 h
139	Edwardsburg 3.0 NNWMI-CS-14	99.2	Volunteer	Cass	100%	7 of 7	86 min	24 h
139	Harbor Springs 4.8 NWMI-EM-13	99.2	Volunteer	Emmet	100%	7 of 7	86 min	24 h
139	Houghton 1.6 ESEMI-HG-1	99.2	Volunteer	Houghton	100%	7 of 7	86 min	24 h
139	Mason 4.8 NNWMI-IH-51	99.2	Volunteer	Ingham	100%	7 of 7	86 min	24 h
139	Shepherd 3.7 SSEMI-IS-5	99.2	Volunteer	Isabella	100%	7 of 7	86 min	24 h
139	Grandville 0.6 SSWMI-KN-93	99.2	Volunteer	Kent	100%	7 of 7	86 min	24 h
139	Howell 3.7 WSWMI-LV-32	99.2	Volunteer	Livingston	100%	7 of 7	86 min	24 h
139	Wobic 0.5 ESEMI-MQ-24	99.2	Volunteer	Marquette	100%	7 of 7	86 min	24 h
139	Commerce 1.8 ESEMI-OK-149	99.2	Volunteer	Oakland	100%	7 of 7	86 min	24 h
139	Coopersville 5.1 WSWMI-OW-64	99.2	Volunteer	Ottawa	100%	7 of 7	86 min	24 h
139	Saginaw 6.4 WMI-SG-17	99.2	Volunteer	Saginaw	100%	7 of 7	86 min	24 h
139	Manistique 2.3 EMI-SH-2	99.2	Volunteer	Schoolcraft	100%	7 of 7	86 min	24 h
139	Owosso 1.0 NWMI-SW-12	99.2	Volunteer	Shiawassee	100%	7 of 7	86 min	24 h
139	Ypsilanti 1.2 WSWMI-WS-90	99.2	Volunteer	Washtenaw	100%	7 of 7	86 min	24 h
153	Laingsburg 2.1 NNWMI-CT-18	99.2	Volunteer	Clinton	100%	7 of 7	86 min	25 h
153	Ann Arbor 5.4 SSWMI-WS-74	99.2	Volunteer	Washtenaw	100%	7 of 7	86 min	25 h
153	Dearborn 2.1 SWMI-WY-178	99.2	Volunteer	Wayne	100%	7 of 7	86 min	25 h
153	Livonia 2.3 NNWMI-WY-33	99.2	Volunteer	Wayne	100%	7 of 7	86 min	25 h
153	Belleville 2.8 ESEMI-WY-47	99.2	Volunteer	Wayne	100%	7 of 7	86 min	25 h
158	Tawas City 9.3 SSWMI-AR-3	99.2	Volunteer	Arenac	100%	7 of 7	86 min	24 h
159	Charlevoix 9.8 SWMI-AT-8	99.2	Volunteer	Antrim	100%	7 of 7	86 min	24 h
159	Dafter 3.4 SEMI-CP-17	99.2	Volunteer	Chippewa	100%	7 of 7	86 min	24 h
159	Lansing 4.7 NWMI-ET-18	99.2	Volunteer	Eaton	100%	7 of 7	86 min	24 h
159	Ann Arbor 7.1 WMI-WS-41	99.2	Volunteer	Washtenaw	100%	7 of 7	86 min	24 h
163	Plainwell 0.5 WSWMI-AN-25	99.2	Volunteer	Allegan	100%	7 of 7	86 min	24 h
163	Vermontville 4.3 NMI-ET-14	99.2	Volunteer	Eaton	100%	7 of 7	86 min	24 h
163	Menominee 9.4 NNEMI-MM-9	99.2	Volunteer	Menominee	100%	7 of 7	86 min	24 h
163	Rochester Hills 1.6 NNWMI-OK-129	99.2	Volunteer	Oakland	100%	7 of 7	86 min	24 h
163	Holland 4.2 NWMI-OW-49	99.2	Volunteer	Ottawa	100%	7 of 7	86 min	24 h
168	Monroe 3.0 SMI-MR-4	99.2	Volunteer	Monroe	100%	7 of 7	86 min	26 h
169	Flint 2.4 WSWMI-GN-41	99.2	Volunteer	Genesee	100%	7 of 7	86 min	25 h
170	Stambaugh 2SSESTMM4	99.2	Cooperative	Iron	100%	7 of 7	88 min	24 h
171	Scottville 2 SESCOM4	99.2	Cooperative	Mason	100%	7 of 7	1.5 h	24 h
172	HermanHERM4	99.2	Cooperative	Baraga	100%	7 of 7	1.5 h	24 h
173	Petoskey NCMCPTYM4	99.2	Cooperative	Emmet	100%	7 of 7	1.5 h	24 h
174	Regional CenterCARM4	99.2	Cooperative	Tuscola	100%	7 of 7	1.6 h	24 h
175	DearbornDRBM4	99.2	Cooperative	Wayne	100%	7 of 7	1.7 h	24 h
176	HartHRTM4	99.2	Cooperative	Oceana	100%	7 of 7	2.3 h	24 h
177	Cedar Springs 2.8 SSWMI-KN-78	99.2	Volunteer	Kent	100%	7 of 7	2.4 h	27 h
178	(KE8CIC) Eaton Rapids 0.3 SEMI-ET-22	99.2	Volunteer	Eaton	100%	7 of 7	2.4 h	24 h
178	Midland 4.4 SWMI-MD-15	99.2	Volunteer	Midland	100%	7 of 7	2.4 h	24 h
180	Big Rapids 3.1 SEMI-ME-12	99.2	Volunteer	Mecosta	100%	7 of 7	2.4 h	24 h
180	St. Clair 1.3 NNEMI-SC-30	99.2	Volunteer	St. Clair	100%	7 of 7	2.4 h	24 h
182	Michigan Center 0.9 NNEMI-JC-29	99.2	Volunteer	Jackson	100%	7 of 7	2.4 h	25 h
183	Scottville 2.1 ESEMI-MS-10	99.2	Volunteer	Mason	100%	7 of 7	2.4 h	24 h
183	Port Huron 2.4 NWMI-SC-34	99.2	Volunteer	St. Clair	100%	7 of 7	2.4 h	24 h
183	Melvin 3.3 ENEMI-SN-10	99.2	Volunteer	Sanilac	100%	7 of 7	2.4 h	24 h
183	Livonia 2.0 NEMI-WY-52	99.2	Volunteer	Wayne	100%	7 of 7	2.4 h	24 h
187	Baraga 3.1 WSWMI-BG-6	99.2	Volunteer	Baraga	100%	7 of 7	2.4 h	26 h
188	Alpena 1.6 SSWMI-AP-1	99.2	Volunteer	Alpena	100%	7 of 7	2.4 h	24 h
188	Escanaba 4.1 NNWMI-DL-7	99.2	Volunteer	Delta	100%	7 of 7	2.4 h	24 h
190	Hart 3 WSWMI-OC-3	99.2	Volunteer	Oceana	100%	7 of 7	2.4 h	24 h
190	Birmingham 0.7 SMI-OK-164	99.2	Volunteer	Oakland	100%	7 of 7	2.4 h	24 h
192	Niles 2.7 WMI-BN-4	99.2	Volunteer	Berrien	100%	7 of 7	2.4 h	24 h
192	Fenton 2.7 SSEMI-OK-63	99.2	Volunteer	Oakland	100%	7 of 7	2.4 h	24 h
194	Jackson 3.2 WMI-JC-11	99.2	Volunteer	Jackson	100%	7 of 7	2.4 h	24 h
194	Lowell 1.4 ESEMI-KN-11	99.2	Volunteer	Kent	100%	7 of 7	2.4 h	24 h
194	Vicksburg 8.7 EMI-KZ-42	99.2	Volunteer	Kalamazoo	100%	7 of 7	2.4 h	24 h
197	NewberryERY	99.2	Airport	Luce	99.8%	503 of 504	12 min	40 min
198	Bond Falls Canal Near PauldingBFCM4	99.1	Gauge	Ontonagon	100%	168 of 168	11 min	60 min
198	Ontonagon river 2 E Bond Falls DamBFDM4	99.1	Gauge	Ontonagon	100%	168 of 168	11 min	60 min
198	Paulding - Bond Falls DamBFMM4	99.1	Gauge	Ontonagon	100%	168 of 168	11 min	60 min
198	Escanaba River 4 NW Boney Falls DamBNYM4	99.1	Gauge	Delta	100%	168 of 168	11 min	60 min
198	Escanaba River AT Dam #1 Near EscanabaDMOM4	99.1	Gauge	Delta	100%	168 of 168	11 min	60 min
198	Escanaba River AT Dam #3 West of GladstoneDMTM4	99.1	Gauge	Delta	100%	168 of 168	11 min	60 min
198	Dead River 8 NW Hoist DamHSDM4	99.1	Gauge	Marquette	100%	168 of 168	11 min	60 min
198	Menominee River AT KingsfordKFDM4	99.1	Gauge	Dickinson	100%	168 of 168	11 min	60 min
198	Dead River 6 NW McClure DamMCDM4	99.1	Gauge	Marquette	100%	168 of 168	11 min	60 min
198	Sturgeon River 5 SE Prickett DamPKDM4	99.1	Gauge	Baraga	100%	168 of 168	11 min	60 min
198	Humboldt - Silver Lake DamSILM4	99.1	Gauge	Marquette	100%	168 of 168	11 min	60 min
198	Ontonagon River 4 SW Victoria DamVCDM4	99.1	Gauge	Ontonagon	100%	168 of 168	11 min	60 min
210	Iron MountainIMT	99.1	Airport	Florence	100%	168 of 168	13 min	67 min
211	ColdwaterOEB	99.1	Airport	Branch	99.8%	503 of 504	12 min	40 min
212	Harbor SpringsMGN	99.1	Airport	Emmet	99.8%	503 of 504	12 min	40 min
213	Sault Ste MarieANJ	99.1	Airport	Chippewa	99.4%	167 of 168	12 min	2 h
214	Ann ArborARB	99.0	Airport	Washtenaw	100%	168 of 168	11 min	60 min
215	Grandville 1SWGVLM4	99.0	Cooperative	Kent	100%	7 of 7	2.8 h	25 h
216	HALM4HALM4	99.0	DCP	-	100%	7 of 7	2.9 h	24 h
217	Bad AxeBAX	99.0	Airport	Huron	99.8%	503 of 504	12 min	40 min
217	CharlevoixCVX	99.0	Airport	Charlevoix	99.8%	503 of 504	12 min	40 min
217	West BranchY31	99.0	Airport	Ogemaw	99.8%	503 of 504	12 min	40 min
220	Alma [CCOOP]ALMM4	99.0	Gauge	Gratiot	99.4%	668 of 672	7 min	45 min
221	Sturgeon River Near Sidnaw04040500	99.0	Gauge	Baraga	99.4%	167 of 168	8 min	2 h
222	MidlandMDLM4	98.9	Cooperative	Midland	100%	7 of 7	3 h	24 h
223	StandishSTAM4	98.9	Cooperative	Arenac	100%	7 of 7	-	24 h
224	Mackinac IslandMCD	98.9	Airport	Mackinac	99.8%	503 of 504	12 min	39 min
225	ManistiqueISQ	98.9	Airport	Schoolcraft	99.8%	503 of 504	12 min	40 min
226	MunisingP53	98.8	Airport	Alger	100%	168 of 168	11 min	67 min
227	Fenton - Holy RAWSHRAM4	98.8	Gauge	Oakland	100%	168 of 168	12 min	62 min
227	WakefieldWKFM4	98.8	Gauge	Gogebic	100%	168 of 168	12 min	62 min
229	L Anse - Baraga PlainsBPLM4	98.8	Gauge	Baraga	100%	168 of 168	12 min	60 min
230	Grand Rapids 2.9 NWMI-KN-32	98.8	Volunteer	Kent	100%	7 of 7	3.4 h	24 h
231	Grandville 1.3 WSWMI-KN-14	98.8	Volunteer	Kent	100%	7 of 7	3.4 h	24 h
232	Jackson 2.8 WSWMI-JC-5	98.8	Volunteer	Jackson	100%	7 of 7	3.4 h	24 h
232	Lowell 5.5 NWMI-KN-102	98.8	Volunteer	Kent	100%	7 of 7	3.4 h	24 h
234	HowellOZW	98.8	Airport	Livingston	99.8%	503 of 504	12 min	40 min
235	Boyne FallsBFA	98.8	Airport	Charlevoix	99.8%	503 of 504	12 min	48 min
236	Benton HarborBEH	98.7	Airport	Berrien	100%	168 of 168	11 min	60 min
237	Humboldt 1NW - Greenstone SubCHMM4	98.7	Gauge	Marquette	100%	168 of 168	13 min	63 min
237	Covington 1NNE - PrecipCWEM4	98.7	Gauge	Baraga	100%	168 of 168	13 min	63 min
237	Iron River Precip Gage OnlyIRRM4	98.7	Gauge	Iron	100%	168 of 168	13 min	63 min
240	RAWS - BradleyBDLM4	98.7	Gauge	Allegan	100%	168 of 168	13 min	60 min
240	RAWS - KentonKTNM4	98.7	Gauge	Houghton	100%	168 of 168	13 min	60 min
240	RAWS - RextonREXM4	98.7	Gauge	Mackinac	100%	168 of 168	13 min	60 min
240	WatersmeetWMTM4	98.7	Gauge	Gogebic	100%	168 of 168	13 min	60 min
244	Skandia 3.0 SSEMI-MQ-34	98.7	Volunteer	Marquette	100%	7 of 7	3.4 h	24 h
245	Jackson 1.3 WSWMI-JC-30	98.7	Volunteer	Jackson	100%	7 of 7	3.4 h	24 h
246	Greenbush 2.5 SMI-AC-3	98.7	Volunteer	Alcona	100%	7 of 7	3.4 h	24 h
246	Kentwood 1.6 WSWMI-KN-48	98.7	Volunteer	Kent	100%	7 of 7	3.4 h	24 h
248	Ishpeming 7.2 SWMI-MQ-19	98.7	Volunteer	Marquette	100%	7 of 7	3.4 h	24 h
249	Highland 1.3 NEMI-OK-109	98.7	Volunteer	Oakland	100%	7 of 7	3.4 h	24 h
250	AlmaAMN	98.7	Airport	Gratiot	99.8%	503 of 504	12 min	40 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.