Live/247 Rank/Pennsylvania

Pennsylvania 24/7 Rank

Every station in Pennsylvania 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.

1,383 stations ranked28.9% sent every report dueranked October 16, 2026page 4 of 6Pennsylvania instrumentsPennsylvania 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 1,383 ranked here, 1,370 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
751	CoatesvilleMQS	92.6	Airport	Chester	89.4%	451 of 504	12 min	2.7 h
752	Allegheny River AT ClintonCLNP1	92.5	Gauge	Armstrong	90.4%	152 of 168	23 min	4 h
753	Mahantango Ck ScanMHCP1	92.4	Gauge	Schuylkill	98.8%	166 of 168	43 min	3 h
754	Brackenridge 0.3 EPA-AL-179	92.4	Volunteer	Allegheny	85.7%	6 of 7	6.4 h	2 days
755	Mahantango CkS2028	92.3	Soil	Schuylkill	100%	168 of 168	45 min	65 min
756	CowansvilleWFTP1	92.3	Gauge	Armstrong	98.8%	166 of 168	43 min	2 h
757	PerkasieCKZ	92.1	Airport	Bucks	89.4%	451 of 504	12 min	2.7 h
758	West ChesterOQN	92.1	Airport	Chester	89.2%	450 of 504	12 min	2.7 h
759	Avondale 2 N03761	92.0	Reference	Chester	100%	84 of 84	1.5 h	3.1 h
760	Phoenixville 1.0 WSWPA-CH-61	92.0	Volunteer	Chester	85.7%	6 of 7	7.4 h	2 days
761	Canonsburg 0.7 WPA-WS-30	92.0	Volunteer	Washington	85.7%	6 of 7	7.4 h	2 days
762	Farmington 0.5 ENEPA-FY-16	92.0	Volunteer	Fayette	85.7%	6 of 7	7.4 h	24 h
763	State College 2.6 NWPA-CN-5	92.0	Volunteer	Centre	85.7%	6 of 7	7.4 h	37.1 h
764	Brandywine Creek at Chadds Ford01481000	91.9	Gauge	Delaware	94.6%	159 of 168	23 min	7.8 h
765	Thomasville/YorkTHV	91.9	Airport	York	92.2%	155 of 168	11 min	3 h
766	Greenland 4 SEGRNP1	91.9	Gauge	Pike	78.7%	26 of 33	18 min	12 h
767	Allentown 2.6 WNWPA-LH-24	91.5	Volunteer	Lehigh	85.7%	6 of 7	8.4 h	37.1 h
768	Bald Eagle Creek AT Sayers DamSYDP1	91.1	Gauge	Centre	83.9%	188 of 224	23 min	2 h
769	AYLESWORTH CREEK AT AylesworthAYLP1	91.1	Gauge	Lackawanna	83.9%	188 of 224	23 min	65 min
770	HillmanBKTP1	91.0	Gauge	Indiana	99.4%	167 of 168	51 min	2 h
770	BrockwayMDRP1	91.0	Gauge	Jefferson	99.4%	167 of 168	51 min	2 h
772	West Branch Susquehanna AT CurwensvilleCRWP1	90.9	Gauge	Clearfield	83.4%	187 of 224	23 min	2 h
772	Cowanesque River AT ElklandELKP1	90.9	Gauge	Tioga	83.4%	187 of 224	23 min	2 h
772	Allegheny River AT FranklinFRKP1	90.9	Gauge	Venango	83.4%	187 of 224	23 min	2 h
772	Allegheny River AT KinzuaKIZP1	90.9	Gauge	Warren	83.4%	187 of 224	23 min	2 h
772	Allegheny River AT KittanningKTTP1	90.9	Gauge	Armstrong	83.4%	187 of 224	23 min	2 h
772	Allegheny River AT ParkerPARP1	90.9	Gauge	Armstrong	83.4%	187 of 224	23 min	2 h
772	Kiskiminetas River AT VandergriftVGFP1	90.9	Gauge	Westmoreland	83.4%	187 of 224	23 min	2 h
772	Allegheny River AT West HickoryWHKP1	90.9	Gauge	Forest	83.4%	187 of 224	23 min	2 h
772	Brokenstraw Creek AT YoungsvilleYVLP1	90.9	Gauge	Warren	83.4%	187 of 224	23 min	2 h
781	Chestnut SpringsCNUP1	90.6	Gauge	Mifflin	100%	168 of 168	12 min	60 min
782	CooksburgCKFP1	90.6	Gauge	Clarion	99.4%	167 of 168	53 min	2 h
783	Orrtanna 0.3 WPA-AD-48	90.6	Volunteer	Adams	85.7%	6 of 7	10.4 h	2 days
784	Valley Green 0.8 ENEPA-YR-8	90.6	Volunteer	York	85.7%	6 of 7	10.4 h	2 days
785	Monongahela River AT CharleroiCHRP1	90.6	Gauge	Westmoreland	82.5%	185 of 224	23 min	2 h
786	YELLOW CREEK PA 3 NE Homer CityHMRP1	90.5	Gauge	Indiana	87.9%	197 of 224	33 min	60 min
787	ReedsvilleRVL	90.5	Airport	Mifflin	86.7%	437 of 504	12 min	2.7 h
788	Rock Springs Pa ScanRSPP1	90.3	Gauge	Centre	98.8%	166 of 168	43 min	3 h
789	Red Hill 2.7 SWPA-MT-108	90.1	Volunteer	Montgomery	85.7%	6 of 7	11.4 h	2 days
790	Ohio River at Emsworth Dam Lower Pool @ Emsworth03085734	89.8	Gauge	Allegheny	74.4%	500 of 672	13 min	45 min
791	Clarion River AT CooksburgCOKP1	89.4	Gauge	Clarion	84.8%	190 of 224	33 min	75 min
792	Sandy Lick Creek AT DuboisDUBP1	89.4	Gauge	Clearfield	84.8%	190 of 224	33 min	76 min
793	Ford City 0.6 ESEPA-AR-17	89.3	Volunteer	Armstrong	71.4%	5 of 7	26 min	2 days
794	Lyons 2.6 SEPA-BR-52	89.3	Volunteer	Berks	71.4%	5 of 7	26 min	24 h
795	Everett 5.5 NPA-BD-14	89.3	Volunteer	Bedford	71.4%	5 of 7	26 min	3 days
796	Abbottstown 2.0 NPA-AD-74	89.3	Volunteer	Adams	71.4%	5 of 7	26 min	2.5 days
797	Palmyra 2.1 SPA-LB-19	89.3	Volunteer	Lebanon	71.4%	5 of 7	26 min	2.5 days
798	Pittsburgh 6.5 NEPA-AL-139	89.3	Volunteer	Allegheny	71.4%	5 of 7	26 min	3 days
799	PA-JF-18PA-JF-18	89.3	COCORAHS	-	71.4%	5 of 7	26 min	3 days
800	Covington 2WSWCOVP1	89.3	Cooperative	Tioga	71.4%	5 of 7	28 min	2.1 days
801	Pittsburgh 5.0 ENEPA-AL-140	89.3	Volunteer	Allegheny	71.4%	5 of 7	86 min	32 h
802	Plum 1.6 SSEPA-AL-130	89.3	Volunteer	Allegheny	71.4%	5 of 7	86 min	32 h
803	Ligonier 0.1 SEPA-WT-42	89.3	Volunteer	Westmoreland	71.4%	5 of 7	86 min	24 h
804	Latrobe 3.4 SSWPA-WT-90	89.3	Volunteer	Westmoreland	71.4%	5 of 7	86 min	37.1 h
805	Butler 3.8 NEPA-BT-76	89.3	Volunteer	Butler	71.4%	5 of 7	86 min	25 h
806	Unionville 2.2 NNEPA-CH-63	89.3	Volunteer	Chester	71.4%	5 of 7	86 min	37.1 h
807	Palmyra 0.9 SWPA-LB-25	89.3	Volunteer	Lebanon	71.4%	5 of 7	86 min	2 days
808	Valley View 0.5 WPA-SC-8	89.3	Volunteer	Schuylkill	71.4%	5 of 7	2.4 h	24 h
809	Forty Fort 0.4 NNEPA-LZ-24	89.3	Volunteer	Luzerne	71.4%	5 of 7	2.4 h	37.1 h
810	Washington 7.0 SSEPA-WS-37	89.3	Volunteer	Washington	71.4%	5 of 7	2.4 h	24 h
811	Gettysburg 4.9 SWPA-AD-12	89.3	Volunteer	Adams	71.4%	5 of 7	2.4 h	2 days
812	State College 1.6 SSWPA-CN-50	89.3	Volunteer	Centre	71.4%	5 of 7	2.4 h	2.5 days
813	Mohrsville 2.2 SWPA-BR-28	89.3	Volunteer	Berks	71.4%	5 of 7	2.4 h	3 days
814	Jersey Shore 0.9 SPA-LY-7	89.3	Volunteer	Lycoming	71.4%	5 of 7	2.4 h	24 h
815	Bridgeville 1.0 SSEPA-AL-174	89.3	Volunteer	Allegheny	71.4%	5 of 7	2.4 h	2 days
815	Seneca 0.7 NNEPA-VN-5	89.3	Volunteer	Venango	71.4%	5 of 7	2.4 h	2 days
817	GaletonGLTP1	89.2	Cooperative	Potter	71.4%	5 of 7	71 min	3 days
818	Rock Springs PaS2036	89.1	Soil	Centre	100%	168 of 168	53 min	65 min
819	Sewage PlantLOKP1	88.9	Cooperative	Clinton	71.4%	5 of 7	3.2 h	3 days
820	Lackawaxen River at Hawley01431500	88.8	Gauge	Wayne	74.4%	500 of 672	18 min	45 min
821	TSVP1TSVP1	88.8	DCP	-	71.4%	5 of 7	3.4 h	3 days
822	Frankfort SpringsFFSP1	88.7	Gauge	Beaver	98.2%	165 of 168	63 min	2 h
823	Mohnton 0.1 SWPA-BR-33	88.7	Volunteer	Berks	85.7%	6 of 7	14.4 h	27.1 h
824	North East 1.2 WNWPA-ER-5	88.7	Volunteer	Erie	85.7%	6 of 7	14.4 h	24 h
825	Monongahela River near Masontown03072655	88.7	Gauge	Fayette	74.1%	498 of 672	18 min	45 min
826	WLLP1WLLP1	88.4	DCP	-	71.4%	5 of 7	4.4 h	2 days
827	Kettle Creek AT Alvin R. Bush LakeBUSP1	88.3	Gauge	Clinton	78.5%	176 of 224	23 min	3 h
828	Fox Run 0.9 SSWPA-BT-69	88.3	Volunteer	Butler	71.4%	5 of 7	4.4 h	36.1 h
829	Palmyra 1.4 SEPA-LB-20	87.9	Volunteer	Lebanon	71.4%	5 of 7	5.4 h	2.5 days
830	York 1.8 ESEPA-YR-53	87.9	Volunteer	York	71.4%	5 of 7	5.4 h	37.1 h
831	Nazareth 1.1 WPA-NH-14	87.9	Volunteer	Northampton	71.4%	5 of 7	5.4 h	3 days
832	Richboro 1.3 SSEPA-BK-73	87.9	Volunteer	Bucks	71.4%	5 of 7	5.4 h	36.1 h
833	East Branch Brandywine Creek below Downingtown01480870	87.6	Gauge	Chester	74.1%	498 of 672	23 min	45 min
834	Codorus Creek AT Indian Rock DamYRKP1	87.4	Gauge	York	83.4%	187 of 224	23 min	2 h
835	Oreland 0.5 NWPA-MT-151	87.4	Volunteer	Montgomery	71.4%	5 of 7	6.4 h	2.1 days
836	Peach Bottom 3.4 NPA-LN-40	87.4	Volunteer	Lancaster	71.4%	5 of 7	6.4 h	37.1 h
837	Hawthorn 4.8 NPA-CL-17	87.4	Volunteer	Clarion	71.4%	5 of 7	6.4 h	24 h
838	Conway 0.5 ESEPA-BV-30	87.3	Volunteer	Beaver	85.7%	6 of 7	17.4 h	27 h
839	Muir AAF/IndiantownMUI	87.3	Airport	Lebanon	70.3%	197 of 280	12 min	2 h
840	Schwenksville 3.9 ESEPA-MT-169	87.0	Volunteer	Montgomery	71.4%	5 of 7	7.4 h	31 h
841	Marcus Hook NWLONMRCP1	86.9	Gauge	Delaware	90.6%	761 of 840	17 min	7 h
842	Cheat Lake Near Stewartstown03071590	86.7	Gauge	Fayette	74.1%	498 of 672	28 min	45 min
843	West Middlesex 2.2 SEPA-MR-22	86.5	Volunteer	Mercer	71.4%	5 of 7	8.4 h	2.5 days
844	US 15 S/B Bloss Mtn @ Liberty Ti PA US PADOTPA002	86.1	Road	Tioga	68.0%	343 of 504	20 min	60 min
844	US 30 @ Wrights Ferry Bridge Yor PA US PADOTPA004	86.1	Road	York	68.0%	343 of 504	20 min	60 min
844	SR 219 N/B @ Meyersdale Bypass S PA US PADOTPA006	86.1	Road	Somerset	68.0%	343 of 504	20 min	60 min
844	US 322 W/B @ Exit PA-34 Newport PA US PADOTPA009	86.1	Road	Perry	68.0%	343 of 504	20 min	60 min
844	SR-77 @ Green HillPA012	86.1	Road	Crawford	68.0%	343 of 504	20 min	60 min
844	SR6 Gobbler KnobPA014	86.1	Road	Bradford	68.0%	343 of 504	20 min	60 min
844	SR219 & SR6PA015	86.1	Road	McKean	68.0%	343 of 504	20 min	60 min
844	I-83 S/B @ Exit 4 Shrewsbury Yor PA US PADOTPA018	86.1	Road	York	68.0%	343 of 504	20 min	60 min
844	I-90 E/B @ MM 1 / Exit 3 Welcome PA US PADOTPA020	86.1	Road	Erie	68.0%	343 of 504	20 min	60 min
844	I-84 E/B @ Exit 17 Newfoundland/ PA US PADOTPA021	86.1	Road	Wayne	68.0%	343 of 504	20 min	60 min
844	I-81 S/B @ Exit 65 US 11/15 Geor PA US PADOTPA022	86.1	Road	Cumberland	68.0%	343 of 504	20 min	60 min
844	I-81 S/B @ MM 40 Newville Roadsi PA US PADOTPA023	86.1	Road	Cumberland	68.0%	343 of 504	20 min	60 min
844	I-81 S/B @ Exit 77 PA 39 Manada PA US PADOTPA025	86.1	Road	Dauphin	68.0%	343 of 504	20 min	60 min
844	I-81 N/B @ Exit 223 New Milford PA US PADOTPA027	86.1	Road	Susquehanna	68.0%	343 of 504	20 min	60 min
844	I-80 MM 67 @ CL School Rd Clario PA US PADOTPA030	86.1	Road	Clarion	68.0%	343 of 504	20 min	60 min
844	I-81 N/B @ Exit 211 Lenox SR 92 PA US PADOTPA031	86.1	Road	Susquehanna	68.0%	343 of 504	20 min	60 min
844	I-80 W/B @ Exit 133 Kylertown SR PA US PADOTPA033	86.1	Road	Clearfield	68.0%	343 of 504	20 min	60 min
844	I-80 E/B MM 55 @ Knox Clarion Co PA US PADOTPA034	86.1	Road	Clarion	68.0%	343 of 504	20 min	60 min
844	I-80 E/B @ Exit 90 Dubois Region PA US PADOTPA035	86.1	Road	Jefferson	68.0%	343 of 504	20 min	60 min
844	SR33 & Wind GapPA037	86.1	Road	Northampton	68.0%	343 of 504	20 min	60 min
844	I-80 E/B @ Exit 35 @ MM 37.5 Cli PA US PADOTPA038	86.1	Road	Venango	68.0%	343 of 504	20 min	60 min
844	I-80 E/B @ MM 11 /Exit 15 Mercer PA US PADOTPA040	86.1	Road	Mercer	68.0%	343 of 504	20 min	60 min
844	I-80 W/B @ Exit 120 Clearfield-S PA US PADOTPA041	86.1	Road	Clearfield	68.0%	343 of 504	20 min	60 min
844	I-80 E/B @ MM 190.6 Clinton Co. PA US PADOTPA045	86.1	Road	Clinton	68.0%	343 of 504	20 min	60 min
844	I-99 Exit 41 BellwoodPA046	86.1	Road	Blair	68.0%	343 of 504	20 min	60 min
844	I-99 MP 62.5 Centre CountyPA047	86.1	Road	Centre	68.0%	343 of 504	20 min	60 min
844	SR30 @ Business 30PA049	86.1	Road	Chester	68.0%	343 of 504	20 min	60 min
844	SR22 & CressonPA050	86.1	Road	Cambria	68.0%	343 of 504	20 min	60 min
844	I-78 W/B @ MM 27 Berks Co.PA052	86.1	Road	Berks	68.0%	343 of 504	20 min	60 min
844	I-79 N/B @ MM 6 Welcome Center G PA US PADOTPA053	86.1	Road	Greene	68.0%	343 of 504	20 min	60 min
844	I-79 N/B @ Exit 40 Meadow Lands PA US PADOTPA054	86.1	Road	Washington	68.0%	343 of 504	20 min	60 min
844	I-70 W/B @ Exit 156 Town Hill Fu PA US PADOTPA056	86.1	Road	Fulton	68.0%	343 of 504	20 min	60 min
844	I-70 E/B MM 5 @ Welcome Center W PA US PADOTPA057	86.1	Road	Washington	68.0%	343 of 504	20 min	60 min
844	I-70 E/B MM 170 @ MD / PA Border PA US PADOTPA058	86.1	Road	Fulton	68.0%	343 of 504	20 min	60 min
844	I-70 E/B @ MM 48 Youghiogheny Ri PA US PADOTPA059	86.1	Road	Westmoreland	68.0%	343 of 504	20 min	60 min
844	I-79 N/B MM 136.4 @ Crawford / M PA US PADOTPA061	86.1	Road	Mercer	68.0%	343 of 504	20 min	60 min
844	I-176 E/B @ SR 422 Interchange B PA US PADOTPA062	86.1	Road	Berks	68.0%	343 of 504	20 min	60 min
844	I-380 N/B @ Exit 20 Daleville La PA US PADOTPA063	86.1	Road	Lackawanna	68.0%	343 of 504	20 min	60 min
844	I-80 E/B @ MM 146.4 Rest Area Ce PA US PADOTPA065	86.1	Road	Centre	68.0%	343 of 504	20 min	60 min
844	I-79 N/B @ Exit 60 Crafton Alleg PA US PADOTPA066	86.1	Road	Allegheny	68.0%	343 of 504	20 min	60 min
844	I-80 W/B MM 287.2 @ Stoney Hollo PA US PADOTPA067	86.1	Road	Monroe	68.0%	343 of 504	20 min	60 min
844	I-95 @ Welcome Center Delaware C PA US PADOTPA068	86.1	Road	Delaware	68.0%	343 of 504	20 min	60 min
844	SR 322 W/B @ Venango-Mercer Co. PA US PADOTPA071	86.1	Road	Venango	68.0%	343 of 504	20 min	60 min
844	I-90 near Clark Rd Overpass Erie PA US PADOTPA073	86.1	Road	Erie	68.0%	343 of 504	20 min	60 min
844	SR6 @ Coudersport Potter CoPA074	86.1	Road	Potter	68.0%	343 of 504	20 min	60 min
844	US 220 SB @ Loyalsock CreekPA075	86.1	Road	Sullivan	68.0%	343 of 504	20 min	60 min
844	US 219 SB Garrett BypassPA076	86.1	Road	Somerset	68.0%	343 of 504	20 min	60 min
844	I-80/I-79 JCT Mercer CoPA077	86.1	Road	Mercer	68.0%	343 of 504	20 min	60 min
892	I-95 @ Rest Area Bucks CntyPA016	86.1	Road	Bucks	68.0%	343 of 504	20 min	60 min
893	Monongahela 0.7 NWPA-WS-52	86.0	Volunteer	Washington	71.4%	5 of 7	9.4 h	2.1 days
894	Carnot-Moon 0.7 ENEPA-AL-33	86.0	Volunteer	Allegheny	71.4%	5 of 7	9.4 h	2.9 days
895	I-80 E/B @ MM 194.8 Clinton Co. PA US PADOTPA044	85.9	Road	Clinton	68.0%	343 of 504	20 min	65 min
896	SR 8 N/B @ SR 308 Venango Co.PA001	85.9	Road	Venango	68.0%	343 of 504	21 min	60 min
897	I-80 E/B MM 246 @ Roadside Rest PA US PADOTPA043	85.8	Road	Columbia	68.0%	343 of 504	20 min	60 min
898	ShamokinN79	85.7	Airport	Northumberland	89.2%	450 of 504	12 min	2.7 h
899	LITTLE SHENANGO RIVER 1 NE GreenvilleGNVP1	85.7	Gauge	Mercer	78.5%	132 of 168	18 min	13 h
900	I-81 N/B @ Exit 145 Hazleton Luz PA US PADOTPA026	85.7	Road	Luzerne	68.0%	343 of 504	20 min	60 min
900	I-81 Franklin MM11 NBPA078	85.7	Road	Franklin	68.0%	343 of 504	20 min	60 min
902	Mount Pocono 0.7 NPA-MN-16	85.6	Volunteer	Monroe	71.4%	5 of 7	10.4 h	2.5 days
903	Oxford 2.1 ENEPA-CH-48	85.6	Volunteer	Chester	71.4%	5 of 7	10.4 h	2 days
904	I-80 W/B @ MM 153.8 Centre Co.PA032	85.4	Road	Centre	68.0%	343 of 504	20 min	60 min
904	I-376 W/B @ Exit 10A Churchill A PA US PADOTPA064	85.4	Road	Allegheny	68.0%	343 of 504	20 min	60 min
906	Citizen station GW6118GW6118	85.4	Citizen	Lehigh	67.9%	91 of 134	17 s	4.5 h
907	I-70 E/B MM 5 @ Welcome Center WashingtoPA011	85.2	Road	Washington	68.0%	343 of 504	25 min	60 min
907	I-80 E/B MM 246 @ Roadside Rest ColumbiaPA013	85.2	Road	Columbia	68.0%	343 of 504	25 min	60 min
909	Indiana 6.5 WNWPA-IN-9	85.1	Volunteer	Indiana	71.4%	5 of 7	11.4 h	24 h
910	Ardmore 0.5 NWPA-MT-48	85.1	Volunteer	Montgomery	71.4%	5 of 7	11.4 h	24 h
911	Harleysville 3.9 WNWPA-MT-87	85.1	Volunteer	Montgomery	71.4%	5 of 7	11.4 h	2 days
912	SR 309 N/B @ I-276 Ft Washington PA US PADOTPA008	85.1	Road	Montgomery	68.0%	343 of 504	20 min	60 min
912	I-76 & MM 336PA036	85.1	Road	Montgomery	68.0%	343 of 504	20 min	60 min
912	I-79 S/B @ MM 100 Coopers Lake B PA US PADOTPA060	85.1	Road	Butler	68.0%	343 of 504	20 min	60 min
915	Citizen station FW9225FW9225	85.1	Citizen	Chester	63.1%	106 of 168	19 s	4.5 h
916	US-322/22 W/B @ Lewistown Narrow PA US PADOTPA010	85.0	Road	Juniata	68.0%	343 of 504	20 min	60 min
916	I-81 N/B @ Exit 112 Hegins Schuy PA US PADOTPA028	85.0	Road	Schuylkill	68.0%	343 of 504	20 min	60 min
918	SR31 & Laurel RidgePA048	85.0	Road	Somerset	67.8%	342 of 504	20 min	65 min
919	Citizen station GW7009GW7009	84.9	Citizen	Lebanon	62.5%	105 of 168	17 s	4.5 h
920	Citizen station GW5344GW5344	84.8	Citizen	Allegheny	64.4%	325 of 504	18 s	1.9 h
921	Citizen station EW6926EW6926	84.7	Citizen	Westmoreland	61.9%	104 of 168	18 s	4.5 h
922	Citizen station FW9324FW9324	84.5	Citizen	Westmoreland	63.6%	107 of 168	20 s	5.8 h
923	Citizen station EW5625EW5625	84.4	Citizen	Lancaster	64.2%	108 of 168	16 s	6.5 h
924	Citizen station EW0132EW0132	84.3	Citizen	Somerset	62.3%	106 of 170	18 s	5.3 h
925	Berlin 3.1 NWPA-SM-2	84.3	Volunteer	Somerset	57.1%	4 of 7	26 min	2 days
926	Elizabethtown 1.1 NPA-LN-34	84.3	Volunteer	Lancaster	57.1%	4 of 7	26 min	2.5 days
927	Spring City 4.9 WPA-CH-66	84.3	Volunteer	Chester	57.1%	4 of 7	85 min	2.5 days
928	Finleyville 0.9 NNWPA-WS-29	84.3	Volunteer	Washington	57.1%	4 of 7	86 min	2 days
929	Mill Hall 1.6 NPA-CT-4	84.3	Volunteer	Clinton	57.1%	4 of 7	86 min	2 days
930	Marienville 5.3 WPA-FR-2	84.3	Volunteer	Forest	57.1%	4 of 7	86 min	3 days
931	North East 2.0 SPA-ER-15	84.3	Volunteer	Erie	57.1%	4 of 7	86 min	25 h
932	Elizabethtown 0.8 ESEPA-LN-51	84.3	Volunteer	Lancaster	57.1%	4 of 7	86 min	3 days
933	Montoursville 0.2 NNWPA-LY-14	84.3	Volunteer	Lycoming	57.1%	4 of 7	86 min	24 h
934	Conshohocken 0.5 NPA-MT-165	84.3	Volunteer	Montgomery	57.1%	4 of 7	86 min	37.1 h
935	Bridgeville 1.8 SWPA-AL-181	84.3	Volunteer	Allegheny	57.1%	4 of 7	86 min	2.5 days
936	Yardley 2.5 SEPA-BK-54	84.3	Volunteer	Bucks	57.1%	4 of 7	86 min	24 h
937	Elverson 2.1 NEPA-BR-47	84.3	Volunteer	Berks	57.1%	4 of 7	86 min	2.1 days
938	Piney LakeCLAP1	84.3	Cooperative	Clarion	57.1%	4 of 7	2.3 h	3 days
939	Tarentum 2.6 WNWPA-AL-105	84.3	Volunteer	Allegheny	57.1%	4 of 7	2.4 h	2.6 days
940	Slippery Rock 5.2 SEPA-BT-27	84.3	Volunteer	Butler	57.1%	4 of 7	2.4 h	2 days
941	US-322 E/B Seven Mountains @ Run PA US PADOTPA072	84.2	Road	Mifflin	68.0%	343 of 504	20 min	60 min
942	Citizen station GW2214GW2214	84.2	Citizen	Delaware	66.0%	111 of 168	17 s	8.3 h
943	Rockwood 4.3 WPA-SM-6	84.2	Volunteer	Somerset	57.1%	4 of 7	85 min	3 days
944	NorristownNRSP1	84.2	Cooperative	Montgomery	57.1%	4 of 7	2.5 h	3 days
945	Chambersburg 1SECHMP1	84.1	Gauge	Franklin	92.8%	156 of 168	63 min	7 h
946	Citizen station CW4403CW4403	84.1	Citizen	Chester	66.0%	111 of 168	18 s	8.8 h
947	Citizen station AA3JLAA3JL	84.0	Citizen	Westmoreland	61.3%	103 of 168	16 s	5.3 h
948	Citizen station FW1708FW1708	84.0	Citizen	Montgomery	60.1%	101 of 168	18 s	4.5 h
949	Citizen station EW9926EW9926	83.9	Citizen	Bucks	61.9%	312 of 504	17 s	1.9 h
950	I-80 E/B Exit 260 @ I-81 Junctio PA US PADOTPA042	83.8	Road	Luzerne	67.8%	342 of 504	21 min	60 min
951	Bradford 1.8 SWPA-MC-8	83.8	Volunteer	McKean	57.1%	4 of 7	3.4 h	2 days
952	Bechtelsville 2.4 NNWPA-BR-58	83.8	Volunteer	Berks	57.1%	4 of 7	3.4 h	36.1 h
953	Meadville 6.7 NWPA-CW-2	83.7	Volunteer	Crawford	71.4%	5 of 7	14.4 h	2 days
954	Liberty - Raven RockXIF	83.7	Airport	Adams	69.2%	194 of 280	12 min	2 h
955	Citizen station GW6394GW6394	83.7	Citizen	Monroe	62.7%	316 of 504	19 s	2.3 h
956	Citizen station GW2818GW2818	83.7	Citizen	Allegheny	59.5%	100 of 168	20 s	4.8 h
957	Penn Hills 0.9 SSWPA-AL-149	83.7	Volunteer	Allegheny	57.1%	4 of 7	86 min	3.6 days
958	I-81 S/B @ Exit 134 Delano Schuy PA US PADOTPA029	83.6	Road	Schuylkill	68.0%	343 of 504	20 min	60 min
959	Citizen station CW5430CW5430	83.6	Citizen	Montgomery	63.2%	319 of 504	18 s	2.5 h
960	Citizen station EW9805EW9805	83.6	Citizen	Dauphin	62.5%	210 of 336	17 s	3.4 h
961	Citizen station DW5160DW5160	83.6	Citizen	Lawrence	60.1%	101 of 168	16 s	5.2 h
962	Citizen station FW6060FW6060	83.6	Citizen	Bucks	58.9%	99 of 168	18 s	4.5 h
963	Citizen station GW5451GW5451	83.5	Citizen	Lebanon	60.5%	103 of 170	19 s	5.5 h
964	Blue Marsh LakePLVP1	83.4	Cooperative	Berks	57.1%	4 of 7	21 min	4 days
965	North Wales 1.3 SWPA-MT-72	83.4	Volunteer	Montgomery	57.1%	4 of 7	86 min	4 days
966	Laughlintown 1SERRFP1	83.4	Cooperative	Westmoreland	57.1%	4 of 7	1.5 h	4 days
967	West Chester 2.4 SSEPA-CH-9	83.4	Volunteer	Chester	57.1%	4 of 7	2.4 h	4 days
968	Indiana/Stewart FldIDI	83.3	Airport	Westmoreland	75.6%	381 of 504	12 min	10.7 h
969	Citizen station EW4075EW4075	83.3	Citizen	Chester	61.3%	103 of 168	18 s	6.5 h
970	SR56 & Babcock MtnPA051	83.2	Road	Somerset	68.0%	343 of 504	20 min	60 min
971	Citizen station FW4396FW4396	83.2	Citizen	Lancaster	61.3%	103 of 168	19 s	6.8 h
972	Citizen station EW3453EW3453	83.2	Citizen	Centre	57.7%	97 of 168	19 s	4.5 h
973	Citizen station SHILOHSHILOH	83.0	Citizen	York	64.8%	109 of 168	16 s	5.3 h
974	Citizen station CW9098CW9098	83.0	Citizen	Bedford	61.3%	309 of 504	20 s	2.3 h
975	Citizen station EW9936EW9936	83.0	Citizen	Chester	59.5%	100 of 168	17 s	5.3 h
976	Susquehanna River AT HarrisburgHARP1	82.9	Gauge	Dauphin	71.7%	241 of 336	43 min	1.5 h
977	Tulpehocken Creek AT Blue Marsh Dam OutflBMRP1	82.9	Gauge	Berks	63.1%	212 of 336	23 min	2 h
978	Citizen station WI3XWI3X	82.9	Citizen	Lebanon	58.7%	148 of 252	19 s	3.7 h
979	Ambler 1.7 ENEPA-MT-172	82.9	Volunteer	Montgomery	57.1%	4 of 7	3.4 h	4 days
980	Phoenixville 2.9 WPA-CH-35	82.9	Volunteer	Chester	57.1%	4 of 7	5.4 h	37.1 h
981	Schuylkill River AT PhiladelphiaPADP1	82.8	Gauge	Philadelphia	71.4%	240 of 336	43 min	1.5 h
982	Citizen station EW0921EW0921	82.8	Citizen	Allegheny	57.1%	96 of 168	18 s	4.8 h
983	Citizen station EW1671EW1671	82.7	Citizen	Franklin	59.5%	300 of 504	17 s	2.2 h
984	Citizen station FW0827FW0827	82.7	Citizen	Chester	57.8%	233 of 403	17 s	2.3 h
985	Citizen station DW4321DW4321	82.7	Citizen	Centre	57.1%	96 of 168	16 s	5 h
986	Citizen station FW1703FW1703	82.7	Citizen	Berks	57.1%	96 of 168	17 s	5 h
987	I-80 W/B @ Exit 111 Clearfield-P PA US PADOTPA039	82.6	Road	Clearfield	68.0%	343 of 504	21 min	60 min
988	Citizen station GW2682GW2682	82.5	Citizen	Lackawanna	58.7%	296 of 504	17 s	2.1 h
989	Citizen station EW9852EW9852	82.4	Citizen	Northumberland	68.4%	115 of 168	18 s	7.5 h
990	Dauphin 2.6 NNEPA-DP-32	82.4	Volunteer	Dauphin	57.1%	4 of 7	5.4 h	3.5 days
991	New Stanton 3.3 NNWPA-WT-37	82.4	Volunteer	Westmoreland	57.1%	4 of 7	6.4 h	3 days
992	Citizen station GW2465GW2465	82.3	Citizen	Luzerne	62.3%	106 of 170	17 s	4.8 h
993	Citizen station GW1135GW1135	82.3	Citizen	Northumberland	61.4%	129 of 210	19 s	6.4 h
994	Citizen station EW5004EW5004	82.3	Citizen	Erie	60.1%	101 of 168	18 s	7.8 h
995	Citizen station GW7949GW7949	82.3	Citizen	Franklin	59.7%	120 of 201	17 s	6.3 h
996	Citizen station FW6647FW6647	82.3	Citizen	Erie	59.5%	100 of 168	20 s	7.3 h
997	Langhorne 2.8 NEPA-BK-18	82.3	Volunteer	Bucks	57.1%	4 of 7	5.4 h	3.5 days
997	Hyndman 6.5 SWPA-SM-8	82.3	Volunteer	Somerset	57.1%	4 of 7	5.4 h	3.5 days
999	Tulpehocken Creek AT Blue Marsh LakePLVP1	82.0	Gauge	Berks	72.0%	242 of 336	43 min	2 h
1,000	US-522N/22E @ US-322 Interchange PA US PADOTPA069	82.0	Road	Mifflin	68.0%	343 of 504	20 min	60 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.