Live/247 Rank/Massachusetts

Massachusetts 24/7 Rank

Every station in Massachusetts 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.

513 stations ranked44.4% sent every report dueranked October 4, 2026page 1 of 3Massachusetts instrumentsMassachusetts 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 513 ranked here, 505 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	TruroCAOM3	100.0	Gauge	Barnstable	100%	168 of 168	10 min	70 min
2	LowellLLLM3	100.0	Cooperative	Middlesex	100%	7 of 7	19 min	24 h
3	MilfordMILM3	100.0	Cooperative	Worcester	100%	7 of 7	39 min	24 h
4	Blue HillBLHM3	100.0	Cooperative	Norfolk	100%	7 of 7	39 min	24 h
5	MiddletonMIDM3	100.0	Cooperative	Essex	100%	7 of 7	59 min	26 h
6	Westfield 3 SWWSTM3	100.0	Cooperative	Hampden	100%	7 of 7	59 min	24 h
7	East SandwichESNM3	100.0	Cooperative	Barnstable	100%	7 of 7	69 min	24.5 h
8	Hardwick 2 ESEHRKM3	100.0	Cooperative	Worcester	100%	7 of 7	69 min	24 h
9	Taunton NWSTNTM3	100.0	Cooperative	Bristol	100%	7 of 7	79 min	24 h
10	AmherstAHRM3	100.0	Cooperative	Hampshire	100%	7 of 7	1.6 h	23.3 h
11	SunderlandSDLM3	100.0	Cooperative	Franklin	100%	7 of 7	1.6 h	24 h
12	Leverett No.2LEVM3	100.0	Cooperative	Franklin	100%	7 of 7	1.8 h	24 h
13	NortonNRNM3	100.0	Cooperative	Bristol	100%	7 of 7	1.8 h	24 h
14	NewburyportNEWM3	100.0	Cooperative	Essex	100%	7 of 7	1.8 h	24 h
15	HLUM3HLUM3	100.0	DCP	-	100%	7 of 7	1.8 h	24.1 h
16	HVRM3HVRM3	100.0	DCP	-	100%	7 of 7	1.8 h	24 h
16	PSFPSF	100.0	DCP	-	100%	7 of 7	1.8 h	24 h
16	SPGM3SPGM3	100.0	DCP	-	100%	7 of 7	1.8 h	24 h
19	Westfield 2.8 SEMA-HD-28	100.0	Volunteer	Hampden	100%	3 of 3	26 min	24 h
20	Plainville 2.4 NEMA-NF-92	100.0	Volunteer	Norfolk	100%	3 of 3	26 min	26 h
21	Methuen 1.4 NEMA-ES-105	100.0	Volunteer	Essex	100%	3 of 3	26 min	24 h
21	Buckland 1.8 ESEMA-FR-17	100.0	Volunteer	Franklin	100%	3 of 3	26 min	24 h
21	Hampden 2.0 NWMA-HD-30	100.0	Volunteer	Hampden	100%	3 of 3	26 min	24 h
21	Ludlow 0.7 NWMA-HD-43	100.0	Volunteer	Hampden	100%	3 of 3	26 min	24 h
21	South Weymouth 1.3 ENEMA-NF-96	100.0	Volunteer	Norfolk	100%	3 of 3	26 min	24 h
21	Nantucket 1.3 WSWMA-NT-13	100.0	Volunteer	Nantucket	100%	3 of 3	26 min	24 h
27	East Sandwich 2.3 SEMA-BA-10	100.0	Volunteer	Barnstable	100%	3 of 3	26 min	24 h
27	Centerville 0.4 WNWMA-BA-106	100.0	Volunteer	Barnstable	100%	3 of 3	26 min	24 h
27	Falmouth 3.0 NNEMA-BA-122	100.0	Volunteer	Barnstable	100%	3 of 3	26 min	24 h
27	Falmouth 5.7 NMA-BA-57	100.0	Volunteer	Barnstable	100%	3 of 3	26 min	24 h
27	Barnstable 0.7 NEMA-BA-76	100.0	Volunteer	Barnstable	100%	3 of 3	26 min	24 h
27	Mashpee 3.2 WSWMA-BA-92	100.0	Volunteer	Barnstable	100%	3 of 3	26 min	24 h
27	Cheshire 0.5 NNWMA-BE-21	100.0	Volunteer	Berkshire	100%	3 of 3	26 min	24 h
27	Becket 4.4 SSEMA-BE-35	100.0	Volunteer	Berkshire	100%	3 of 3	26 min	24 h
27	Cheshire 2.6 NMA-BE-36	100.0	Volunteer	Berkshire	100%	3 of 3	26 min	24 h
27	Taunton 3.9 NMA-BR-30	100.0	Volunteer	Bristol	100%	3 of 3	26 min	24 h
27	Danvers 1.1 EMA-ES-104	100.0	Volunteer	Essex	100%	3 of 3	26 min	24 h
27	Nahant 0.7 NMA-ES-76	100.0	Volunteer	Essex	100%	3 of 3	26 min	24 h
27	Haverhill 0.8 SWMA-ES-90	100.0	Volunteer	Essex	100%	3 of 3	26 min	24 h
27	Conway 2.9 NWMA-FR-13	100.0	Volunteer	Franklin	100%	3 of 3	26 min	24 h
27	Springfield 2.2 WNWMA-HD-38	100.0	Volunteer	Hampden	100%	3 of 3	26 min	24 h
27	Feeding Hills 0.8 NNWMA-HD-60	100.0	Volunteer	Hampden	100%	3 of 3	26 min	24 h
27	Feeding Hills 1.2 NMA-HD-64	100.0	Volunteer	Hampden	100%	3 of 3	26 min	24 h
27	Russell 0.9 WMA-HD-70	100.0	Volunteer	Hampden	100%	3 of 3	26 min	24 h
27	Littleton 0.9 WSWMA-MD-105	100.0	Volunteer	Middlesex	100%	3 of 3	26 min	24 h
27	Acton 1.3 SWMA-MD-12	100.0	Volunteer	Middlesex	100%	3 of 3	26 min	24 h
27	Framingham 2.0 NNEMA-MD-178	100.0	Volunteer	Middlesex	100%	3 of 3	26 min	24 h
27	Lexington 0.6 SWMA-MD-52	100.0	Volunteer	Middlesex	100%	3 of 3	26 min	24 h
27	Milton 0.7 NNWMA-NF-100	100.0	Volunteer	Norfolk	100%	3 of 3	26 min	24 h
27	East Bridgewater 0.3 WSWMA-PL-22	100.0	Volunteer	Plymouth	100%	3 of 3	26 min	24 h
27	Marshfield 1.5 NNWMA-PL-48	100.0	Volunteer	Plymouth	100%	3 of 3	26 min	24 h
27	Marion 1.3 NMA-PL-66	100.0	Volunteer	Plymouth	100%	3 of 3	26 min	24 h
27	Royalston 5.1 WNWMA-WR-155	100.0	Volunteer	Worcester	100%	3 of 3	26 min	24 h
27	Winchendon 3.2 SMA-WR-80	100.0	Volunteer	Worcester	100%	3 of 3	26 min	24 h
55	Osterville 1.6 NNWMA-BA-108	100.0	Volunteer	Barnstable	100%	3 of 3	26 min	24 h
55	Falmouth 3.1 NNWMA-BA-2	100.0	Volunteer	Barnstable	100%	3 of 3	26 min	24 h
55	Somerset 0.4 SSEMA-BR-16	100.0	Volunteer	Bristol	100%	3 of 3	26 min	24 h
55	Nahant 0.4 NMA-ES-45	100.0	Volunteer	Essex	100%	3 of 3	26 min	24 h
55	Hamilton 0.7 WSWMA-ES-97	100.0	Volunteer	Essex	100%	3 of 3	26 min	24 h
55	Hudson 1.4 NWMA-MD-115	100.0	Volunteer	Middlesex	100%	3 of 3	26 min	24 h
55	Sudbury 1.8 NMA-MD-211	100.0	Volunteer	Middlesex	100%	3 of 3	26 min	24 h
55	North Marshfield 0.6 NNEMA-PL-72	100.0	Volunteer	Plymouth	100%	3 of 3	26 min	24 h
63	Clarksburg 1.2 ENEMA-BE-34	100.0	Volunteer	Berkshire	100%	3 of 3	26 min	25 h
63	Kingston 3.3 WNWMA-PL-5	100.0	Volunteer	Plymouth	100%	3 of 3	26 min	25 h
65	Abington 1.2 NNEMA-PL-15	100.0	Volunteer	Plymouth	100%	3 of 3	26 min	26 h
66	Shrewsbury 0.4 SMA-WR-112	100.0	Volunteer	Worcester	100%	3 of 3	85 min	25 h
67	NWS Boston/Norton 2.5 ESEMA-BR-55	100.0	Volunteer	Bristol	100%	3 of 3	86 min	24 h
67	Swansea 2.2 WSWMA-BR-90	100.0	Volunteer	Bristol	100%	3 of 3	86 min	24 h
67	West Newbury 1.1 ESEMA-ES-86	100.0	Volunteer	Essex	100%	3 of 3	86 min	24 h
67	Sherborn 1.1 NWMA-MD-158	100.0	Volunteer	Middlesex	100%	3 of 3	86 min	24 h
67	Hanover 4.2 WNWMA-PL-78	100.0	Volunteer	Plymouth	100%	3 of 3	86 min	24 h
67	Uxbridge 2.4 WSWMA-WR-138	100.0	Volunteer	Worcester	100%	3 of 3	86 min	24 h
73	Yarmouth 2.0 SMA-BA-72	100.0	Volunteer	Barnstable	100%	3 of 3	86 min	25 h
73	Beverly 1.6 WMA-ES-100	100.0	Volunteer	Essex	100%	3 of 3	86 min	25 h
75	Spencer 1.7 WMA-WR-140	100.0	Volunteer	Worcester	100%	3 of 3	86 min	26 h
76	Acton 4.0 ENEMA-MD-53	100.0	Volunteer	Middlesex	100%	3 of 3	86 min	24 h
76	Westminster 0.6 WSWMA-WR-44	100.0	Volunteer	Worcester	100%	3 of 3	86 min	24 h
78	Falmouth 0.6 NNWMA-BA-13	100.0	Volunteer	Barnstable	100%	3 of 3	86 min	25 h
78	Truro 0.8 EMA-BA-52	100.0	Volunteer	Barnstable	100%	3 of 3	86 min	25 h
78	West Springfield 0.3 EMA-HD-36	100.0	Volunteer	Hampden	100%	3 of 3	86 min	25 h
78	Quincy 0.4 NNWMA-NF-101	100.0	Volunteer	Norfolk	100%	3 of 3	86 min	25 h
78	Bellingham 2.4 SMA-NF-26	100.0	Volunteer	Norfolk	100%	3 of 3	86 min	25 h
78	Norfolk 1.6 WSWMA-NF-86	100.0	Volunteer	Norfolk	100%	3 of 3	86 min	25 h
84	Andover 0.6 EMA-ES-48	100.0	Volunteer	Essex	100%	3 of 3	86 min	27 h
84	Northampton 2.7 NEMA-HS-58	100.0	Volunteer	Hampshire	100%	3 of 3	86 min	27 h
86	Groveland 1.2 NEMA-ES-77	100.0	Volunteer	Essex	100%	3 of 3	86 min	24 h
86	Granby 0.5 WSWMA-HS-47	100.0	Volunteer	Hampshire	100%	3 of 3	86 min	24 h
86	Holden 0.9 SSEMA-WR-89	100.0	Volunteer	Worcester	100%	3 of 3	86 min	24 h
89	Auburn 2.6 SWMA-WR-41	100.0	Volunteer	Worcester	100%	3 of 3	86 min	25 h
90	Mansfield 2.4 ENEMA-BR-61	100.0	Volunteer	Bristol	100%	3 of 3	86 min	26 h
91	North Falmouth 1.0 NEMA-BA-112	100.0	Volunteer	Barnstable	100%	3 of 3	86 min	24 h
91	Sandwich 0.9 NNEMA-BA-45	100.0	Volunteer	Barnstable	100%	3 of 3	86 min	24 h
91	Becket 5.6 SSWMA-BE-4	100.0	Volunteer	Berkshire	100%	3 of 3	86 min	24 h
91	Dighton 3.3 NNWMA-BR-58	100.0	Volunteer	Bristol	100%	3 of 3	86 min	24 h
91	West Tisbury 0.7 NNEMA-DK-27	100.0	Volunteer	Dukes	100%	3 of 3	86 min	24 h
91	Middleton 1.4 SSWMA-ES-58	100.0	Volunteer	Essex	100%	3 of 3	86 min	24 h
91	Colrain 3.7 WNWMA-FR-31	100.0	Volunteer	Franklin	100%	3 of 3	86 min	24 h
91	New Salem 3.1 SMA-FR-8	100.0	Volunteer	Franklin	100%	3 of 3	86 min	24 h
91	Westfield 2.2 NMA-HD-44	100.0	Volunteer	Hampden	100%	3 of 3	86 min	24 h
91	Southampton 1.6 SSWMA-HS-66	100.0	Volunteer	Hampshire	100%	3 of 3	86 min	24 h
91	Cambridge 0.9 NNWMA-MD-11	100.0	Volunteer	Middlesex	100%	3 of 3	86 min	24 h
91	Watertown 1.1 WMA-MD-119	100.0	Volunteer	Middlesex	100%	3 of 3	86 min	24 h
91	Melrose 0.5 NEMA-MD-126	100.0	Volunteer	Middlesex	100%	3 of 3	86 min	24 h
91	Belmont 0.2 ESEMA-MD-18	100.0	Volunteer	Middlesex	100%	3 of 3	86 min	24 h
91	Watertown 1.1 NWMA-MD-186	100.0	Volunteer	Middlesex	100%	3 of 3	86 min	24 h
91	Melrose 1.0 WNWMA-MD-250	100.0	Volunteer	Middlesex	100%	3 of 3	86 min	24 h
91	Lexington 0.9 ENEMA-MD-256	100.0	Volunteer	Middlesex	100%	3 of 3	86 min	24 h
91	Maynard 0.7 ESEMA-MD-51	100.0	Volunteer	Middlesex	100%	3 of 3	86 min	24 h
91	Carver 2.3 EMA-PL-55	100.0	Volunteer	Plymouth	100%	3 of 3	86 min	24 h
91	Scituate 1.4 NMA-PL-73	100.0	Volunteer	Plymouth	100%	3 of 3	86 min	24 h
91	Boston 6.5 SWMA-SF-31	100.0	Volunteer	Suffolk	100%	3 of 3	86 min	24 h
91	Fitchburg 1.5 NNEMA-WR-144	100.0	Volunteer	Worcester	100%	3 of 3	86 min	24 h
91	Barre 1.4 NNEMA-WR-54	100.0	Volunteer	Worcester	100%	3 of 3	86 min	24 h
114	Orleans 1.1 EMA-BA-12	100.0	Volunteer	Barnstable	100%	3 of 3	86 min	25 h
114	Beverly 1.3 ENEMA-ES-99	100.0	Volunteer	Essex	100%	3 of 3	86 min	25 h
114	Conway 0.9 SWMA-FR-10	100.0	Volunteer	Franklin	100%	3 of 3	86 min	25 h
114	Plymouth 4.5 SSEMA-PL-79	100.0	Volunteer	Plymouth	100%	3 of 3	86 min	25 h
114	Douglas 1.9 NNEMA-WR-100	100.0	Volunteer	Worcester	100%	3 of 3	86 min	25 h
114	Barre 2.1 SEMA-WR-157	100.0	Volunteer	Worcester	100%	3 of 3	86 min	25 h
120	South Hadley 3.2 SSWMA-HS-56	100.0	Volunteer	Hampshire	100%	3 of 3	86 min	26 h
121	Foxborough 3.1 EMA-NF-73	100.0	Volunteer	Norfolk	100%	3 of 3	86 min	25 h
121	Athol 2.8 NNEMA-WR-106	100.0	Volunteer	Worcester	100%	3 of 3	86 min	25 h
121	Berlin 1.3 WSWMA-WR-28	100.0	Volunteer	Worcester	100%	3 of 3	86 min	25 h
124	Dennis 0.8 SMA-BA-107	100.0	Volunteer	Barnstable	100%	3 of 3	86 min	24 h
124	Barnstable 3.6 WMA-BA-59	100.0	Volunteer	Barnstable	100%	3 of 3	86 min	24 h
124	Cheshire 2.0 SWMA-BE-13	100.0	Volunteer	Berkshire	100%	3 of 3	86 min	24 h
124	Fairhaven 1.9 ENEMA-BR-79	100.0	Volunteer	Bristol	100%	3 of 3	86 min	24 h
124	Vineyard Haven 0.8 WSWMA-DK-2	100.0	Volunteer	Dukes	100%	3 of 3	86 min	24 h
124	West Tisbury 3.6 NEMA-DK-25	100.0	Volunteer	Dukes	100%	3 of 3	86 min	24 h
124	Easthampton 1.0 EMA-HS-48	100.0	Volunteer	Hampshire	100%	3 of 3	86 min	24 h
124	Franklin 1.4 SWMA-NF-62	100.0	Volunteer	Norfolk	100%	3 of 3	86 min	24 h
124	Milton 1.3 NMA-NF-65	100.0	Volunteer	Norfolk	100%	3 of 3	86 min	24 h
124	Hanson 1.8 NMA-PL-57	100.0	Volunteer	Plymouth	100%	3 of 3	86 min	24 h
134	Dennis 2.4 SEMA-BA-119	100.0	Volunteer	Barnstable	100%	3 of 3	86 min	25 h
134	Greenfield 0.6 NMA-FR-48	100.0	Volunteer	Franklin	100%	3 of 3	86 min	25 h
136	Springfield 4.1 WMA-HD-13	100.0	Volunteer	Hampden	100%	3 of 3	86 min	2 days
137	Yarmouth 2.3 SSEMA-BA-1	100.0	Volunteer	Barnstable	100%	3 of 3	2.4 h	24 h
137	Waquoit 0.6 SSWMA-BA-18	100.0	Volunteer	Barnstable	100%	3 of 3	2.4 h	24 h
137	Orleans 1.8 SMA-BA-42	100.0	Volunteer	Barnstable	100%	3 of 3	2.4 h	24 h
140	Billerica 1.1 NNEMA-MD-247	100.0	Volunteer	Middlesex	100%	3 of 3	2.4 h	25 h
140	Braintree 1.5 SEMA-NF-75	100.0	Volunteer	Norfolk	100%	3 of 3	2.4 h	25 h
142	Brimfield 3.6 NWMA-HD-26	100.0	Volunteer	Hampden	100%	3 of 3	2.4 h	2 days
143	Stoughton 1.2 EMA-NF-31	100.0	Volunteer	Norfolk	100%	3 of 3	2.4 h	24 h
144	Methuen 2.1 NWMA-ES-93	100.0	Volunteer	Essex	100%	3 of 3	2.4 h	24 h
145	Orleans 3.0 SMA-BA-51	100.0	Volunteer	Barnstable	100%	3 of 3	2.4 h	24 h
145	Dartmouth 2.5 SSWMA-BR-14	100.0	Volunteer	Bristol	100%	3 of 3	2.4 h	24 h
145	Norton 1.8 NNEMA-BR-3	100.0	Volunteer	Bristol	100%	3 of 3	2.4 h	24 h
145	New Bedford 4.3 NMA-BR-52	100.0	Volunteer	Bristol	100%	3 of 3	2.4 h	24 h
145	Oak Bluffs 0.1 SWMA-DK-18	100.0	Volunteer	Dukes	100%	3 of 3	2.4 h	24 h
145	Boxford 2.4 SMA-ES-12	100.0	Volunteer	Essex	100%	3 of 3	2.4 h	24 h
145	Newburyport 0.8 SWMA-ES-24	100.0	Volunteer	Essex	100%	3 of 3	2.4 h	24 h
145	Sunderland 1.3 SEMA-FR-12	100.0	Volunteer	Franklin	100%	3 of 3	2.4 h	24 h
145	West Springfield 1.8 WSWMA-HD-49	100.0	Volunteer	Hampden	100%	3 of 3	2.4 h	24 h
145	Plainfield 2.2 SWMA-HS-7	100.0	Volunteer	Hampshire	100%	3 of 3	2.4 h	24 h
145	Winchester 0.7 SEMA-MD-7	100.0	Volunteer	Middlesex	100%	3 of 3	2.4 h	24 h
145	Norwood 1.3 NWMA-NF-1	100.0	Volunteer	Norfolk	100%	3 of 3	2.4 h	24 h
145	Hanson 0.4 WMA-PL-85	100.0	Volunteer	Plymouth	100%	3 of 3	2.4 h	24 h
145	Sterling 4.3 NWMA-WR-56	100.0	Volunteer	Worcester	100%	3 of 3	2.4 h	24 h
159	Falmouth 3.2 WSWMA-BA-113	100.0	Volunteer	Barnstable	100%	3 of 3	2.4 h	2 days
160	Milton 1.6 SMA-NF-91	100.0	Volunteer	Norfolk	100%	3 of 3	2.4 h	24 h
161	Dracut 1.8 ENEMA-MD-245	100.0	Volunteer	Middlesex	100%	3 of 3	2.4 h	24 h
162	Ipswich River 1 S IpswichIPSM3	99.9	Gauge	Essex	100%	168 of 168	11 min	61 min
163	Mill River AT TauntonTNMM3	99.9	Gauge	Bristol	100%	168 of 168	11 min	62 min
164	Blackstone River At Millbury MaMLBM3	99.9	Gauge	Hampden	100%	168 of 168	11 min	75 min
165	Blue HillsBLUM3	99.8	Gauge	Norfolk	100%	168 of 168	11 min	71 min
166	ReserviorSBRM3	99.7	Cooperative	Worcester	100%	7 of 7	3.1 h	24 h
167	South Coastal Massachusetts AT New Bedford Hurrcane BarrierNBDM3	99.7	Gauge	Bristol	99.4%	334 of 336	11 min	1.5 h
168	Connecticut River AT MontagueMNTM3	99.7	Gauge	Franklin	99.4%	167 of 168	11 min	2 h
169	WorcesterORH	99.7	Airport	Worcester	99.4%	167 of 168	11 min	2 h
170	Chelmsford 1.2 EMA-MD-62	99.5	Volunteer	Middlesex	100%	3 of 3	3.4 h	24 h
171	East Falmouth 1.4 ESEMA-BA-11	99.5	Volunteer	Barnstable	100%	3 of 3	3.4 h	24 h
171	Wareham 5.6 NEMA-PL-63	99.5	Volunteer	Plymouth	100%	3 of 3	3.4 h	24 h
173	West Newbury 0.5 SSEMA-ES-89	99.5	Volunteer	Essex	100%	3 of 3	3.4 h	47 h
174	Swansea 2.1 WMA-BR-63	99.5	Volunteer	Bristol	100%	3 of 3	3.4 h	24 h
174	Westfield 1.8 SSEMA-HD-65	99.5	Volunteer	Hampden	100%	3 of 3	3.4 h	24 h
174	Chelsea 0.8 NMA-SF-10	99.5	Volunteer	Suffolk	100%	3 of 3	3.4 h	24 h
177	Millis 1.4 ENEMA-NF-50	99.5	Volunteer	Norfolk	100%	3 of 3	3.4 h	25 h
178	Falmouth 5.4 NNEMA-BA-50	99.5	Volunteer	Barnstable	100%	3 of 3	3.4 h	24 h
179	Hadley 3.2 NNEMA-HS-61	99.5	Volunteer	Hampshire	100%	3 of 3	3.4 h	24 h
179	Cohasset 0.7 WNWMA-NF-97	99.5	Volunteer	Plymouth	100%	3 of 3	3.4 h	24 h
179	Worcester 2.2 NWMA-WR-98	99.5	Volunteer	Worcester	100%	3 of 3	3.4 h	24 h
182	Marthas VineyardMVY	99.5	Airport	Dukes	99.4%	167 of 168	12 min	1.6 h
183	Westfield/BarnesBAF	99.4	Airport	Hampden	100%	168 of 168	12 min	68 min
184	Boston/Logan INTLBOS	99.4	Airport	Suffolk	98.8%	166 of 168	11 min	2 h
185	Wellfleet 0.7 NWMA-BA-27	99.1	Volunteer	Barnstable	100%	3 of 3	4.4 h	24 h
186	Reading 1.2 NMA-MD-160	99.1	Volunteer	Middlesex	100%	3 of 3	4.4 h	24 h
186	Woburn 0.8 SMA-MD-262	99.1	Volunteer	Middlesex	100%	3 of 3	4.4 h	24 h
188	Eastham 0.9 SWMA-BA-69	99.1	Volunteer	Barnstable	100%	3 of 3	4.4 h	2 days
189	Holden 0.9 WMA-WR-99	99.1	Volunteer	Worcester	100%	3 of 3	4.4 h	24 h
190	Turners Falls 0.1 NNWMA-FR-47	99.1	Volunteer	Franklin	100%	3 of 3	4.4 h	24 h
190	Westhampton 0.4 WNWMA-HS-45	99.1	Volunteer	Hampshire	100%	3 of 3	4.4 h	24 h
192	Hanscom Fld/BedfordBED	99.1	Airport	Middlesex	99.4%	167 of 168	14 min	2 h
193	Intake - Ware RiverWRIM3	98.9	Gauge	Worcester	100%	168 of 168	16 min	75 min
194	Otis ANGBFMH	98.9	Airport	Barnstable	98.2%	165 of 168	-	2 h
195	Pittsfield MuniPSF	98.8	Airport	Berkshire	100%	168 of 168	11 min	73 min
196	Housatonic River Near Ashley FallsASFM3	98.7	Gauge	Berkshire	99.4%	167 of 168	16 min	2 h
196	Nashua River AT East PepperellDNSM3	98.7	Gauge	Middlesex	99.4%	167 of 168	16 min	2 h
198	Paxton 1.8 ESEMA-WR-156	98.6	Volunteer	Worcester	100%	3 of 3	5.4 h	24 h
199	Chicopee/WestoverCEF	98.6	Airport	Hampden	99.4%	167 of 168	10 min	2 h
200	Harvard - Oxbow DevensOXBM3	98.5	Gauge	Worcester	98.8%	166 of 168	16 min	2 h
201	West Tisbury 0.4 SMA-DK-9	98.1	Volunteer	Dukes	100%	3 of 3	6.4 h	24 h
202	Montague 3.4 NNWMA-FR-36	98.1	Volunteer	Franklin	100%	3 of 3	6.4 h	2 days
203	Mashpee 0.8 SSWMA-BA-79	98.1	Volunteer	Barnstable	100%	3 of 3	6.4 h	24 h
204	Ashfield 1.4 NEMA-FR-22	98.1	Volunteer	Franklin	100%	3 of 3	6.4 h	24 h
205	Wading River 2 E NortonNORM3	98.0	Gauge	Bristol	97.6%	164 of 168	16 min	2 h
205	Swift RiverWWRM3	98.0	Gauge	Hampshire	97.6%	164 of 168	16 min	2 h
207	North Nashua River AT FitchburgFBGM3	97.9	Gauge	Worcester	100%	168 of 168	21 min	60 min
207	HoldenHOLM3	97.9	Gauge	Worcester	100%	168 of 168	21 min	60 min
209	Whately - Avery BrookAVWM3	97.9	Gauge	Franklin	100%	168 of 168	21 min	61 min
209	Connecticut River At NorthfieNFDM3	97.9	Gauge	Franklin	100%	168 of 168	21 min	61 min
209	Blackstone River Near UxbridgeXBRM3	97.9	Gauge	Worcester	100%	168 of 168	21 min	61 min
212	Westfield RiverCSTM3	97.9	Gauge	Hampshire	100%	168 of 168	21 min	62 min
212	SterlingSTEM3	97.9	Gauge	Worcester	100%	168 of 168	21 min	62 min
214	West Br Farmington AT New BostonNBSM3	97.9	Gauge	Berkshire	100%	168 of 168	21 min	74 min
215	Mother Brook AT DedhamDDHM3	97.8	Gauge	Norfolk	97.0%	163 of 168	16 min	2 h
216	Northampton 1.5 ESEMA-HS-57	97.7	Volunteer	Hampshire	100%	3 of 3	7.4 h	25 h
217	East Falmouth 1.2 WNWMA-BA-17	97.7	Volunteer	Barnstable	100%	3 of 3	7.4 h	24 h
218	Brewster 1.4 WMA-BA-80	97.7	Volunteer	Barnstable	100%	3 of 3	7.4 h	25 h
219	Indian Head River At HanoverINHM3	97.7	Gauge	Plymouth	99.4%	167 of 168	20 min	2 h
219	Sevenmile River At SpencerSVNM3	97.7	Gauge	Worcester	99.4%	167 of 168	20 min	2 h
221	Hodges Village DamHVDM3	97.7	Gauge	Worcester	99.4%	167 of 168	21 min	1.5 h
222	Little River (Buffumville Lake)CHLM3	97.7	Gauge	Worcester	99.4%	167 of 168	21 min	2 h
223	FiskdaleFSKM3	97.7	Gauge	Worcester	99.4%	167 of 168	21 min	2 h
224	Millers River 1 W AtholATHM3	97.7	Gauge	Worcester	99.4%	167 of 168	21 min	2 h
224	Ware River At Barre PlainsBPLM3	97.7	Gauge	Worcester	99.4%	167 of 168	21 min	2 h
224	Parker RiverBYFM3	97.7	Gauge	Essex	99.4%	167 of 168	21 min	2 h
224	Deerfield 1 E CharlemontCLMM3	97.7	Gauge	Franklin	99.4%	167 of 168	21 min	2 h
224	Fall RiverFRPM3	97.7	Gauge	Bristol	99.4%	167 of 168	21 min	2 h
224	Green River Near Great BarringtonGBGM3	97.7	Gauge	Berkshire	99.4%	167 of 168	21 min	2 h
224	Ware River 4 W Gibbs CrossingGIBM3	97.7	Gauge	Hampshire	99.4%	167 of 168	21 min	2 h
224	Middle Branch WestfieldGOSM3	97.7	Gauge	Hampshire	99.4%	167 of 168	21 min	2 h
224	Neponset AT CantonGRLM3	97.7	Gauge	Norfolk	99.4%	167 of 168	21 min	2 h
224	GrotonGROM3	97.7	Gauge	Middlesex	99.4%	167 of 168	21 min	2 h
224	Housatonic River AT Gt BarringtonGTBM3	97.7	Gauge	Berkshire	99.4%	167 of 168	21 min	2 h
224	Hingham - Weir RiverHGMM3	97.7	Gauge	Plymouth	99.4%	167 of 168	21 min	2 h
224	W Br Westfield River 2 E HuntingtonHNTM3	97.7	Gauge	Hampshire	99.4%	167 of 168	21 min	2 h
224	Chicopee River AT Indian OrchardINDM3	97.7	Gauge	Hampden	99.4%	167 of 168	21 min	2 h
224	Merrimack River AT LawrenceLAWM3	97.7	Gauge	Essex	99.4%	167 of 168	21 min	2 h
224	Concord River AT LowellLCNM3	97.7	Gauge	Middlesex	99.4%	167 of 168	21 min	2 h
224	Spicket River 5 N MethuenMTHM3	97.7	Gauge	Essex	99.4%	167 of 168	21 min	2 h
224	Mattapoisett 2W - Mattapoisett RiverMTTM3	97.7	Gauge	Plymouth	99.4%	167 of 168	21 min	2 h
224	Muddy River AT BrooklineMUDM3	97.7	Gauge	Norfolk	99.4%	167 of 168	21 min	2 h
224	PeabodyPEBM3	97.7	Gauge	Essex	99.4%	167 of 168	21 min	2 h
224	North River 2 N ShattuckvilleSHVM3	97.7	Gauge	Franklin	99.4%	167 of 168	21 min	2 h
224	Ipswich River AT South MiddletonSMMM3	97.7	Gauge	Essex	99.4%	167 of 168	21 min	2 h
224	Millers River 1 S South RoyalstonSRLM3	97.7	Gauge	Worcester	99.4%	167 of 168	21 min	2 h
224	West Deerfield River 2 W West DeerfieldWDEM3	97.7	Gauge	Franklin	99.4%	167 of 168	21 min	2 h
224	Charles AT WellesleyWELM3	97.7	Gauge	Norfolk	99.4%	167 of 168	21 min	2 h
224	Charles River AT WalthamWLTM3	97.7	Gauge	Middlesex	99.4%	167 of 168	21 min	2 h
250	Cape Cod Bay AT Dennis Sesuit HarborSESM3	97.7	Gauge	Barnstable	99.4%	167 of 168	21 min	2 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. 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.