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Philadelphia


Climatic Data - Provides the norm's and "records", including Temperatures, heating & cooling degree days, percent of possible sunshine, sky cover, precipitation, relative humidity, and sunrise/set times.

Hourly Observations - Provides hourly weather observations for the period of record.

Daily Weather Archives - Provides the daily maximum temperature, minimum temperature, average temperature, Heating & Cooling Degree Days, Growing Degree Days, Average Dewpoint, Average Relative Humidity, Average Wind Speed, Average Wind Direction, Average Pressure, and the Total Precipitation.

Means & Extremes - Contains the Daily Mean Temperatures and the Daily Extremes (record max, min, precipitation, and snowfall) including the year in which they occurred.



Date High
Temp.
Low
Temp.
Avg
Temp.
Temp
Departure
HDD CDD GDD Avg
Dewpoint
Avg
RH
Avg
Wind Speed
Avg
Wind Dir
Avg
Press
Total
Precip
# obs
2026-10-14816674150919657592451012.90.0424
2026-10-1381596990414617572151014.124
2026-10-12745765500105777112521010.20.2524
2026-10-116560632208599012611019.71.8424
2026-10-10755264310948605991029.124
2026-10-0976546540010445072021021.724
2026-10-08795767502124856102641013.224
2026-10-07724860-2505466451331016.224
2026-10-06654857-6802374782971020.924
2026-10-0573576411095166102771017.124
2026-10-04645962-130757849801021.90.1224
2026-10-03736267302125363101311022.7Trace24
2026-10-028866751101020657292381014.70.1824
2026-10-0182667270717647862081018.224
Date High
Temp.
Low
Temp.
Avg
Temp.
Temp
Departure
HDD CDD GDD Avg
Dewpoint
Avg
RH
Avg
Wind Speed
Avg
Wind Dir
Avg
Press
Total
Precip
# obs
2026-09-3077667050515627541611019.424
2026-09-2974626940414597272801016.424
2026-09-28706164-2109608582861010.70.1124
2026-09-27675762-43075889162181003.11.6124
2026-09-26705761-64065273182011009.00.3824
2026-09-25755766-10111424218441017.724
2026-09-24685460-7505455814371027.224
2026-09-23705562-6307496214541028.70.0124
2026-09-22665963-5208567911521024.10.5024
2026-09-21746669004146075111011017.60.1024
2026-09-2079667340818678271411014.90.1224
2026-09-1977647120616576210741020.624
2026-09-18887278801323646582121018.1Trace24
2026-09-17846977701222687771861022.40.0324
2026-09-1683627220717616961571027.224
2026-09-15795768-30313515551541027.524
2026-09-14796474309195656113101018.024
2026-09-13847176501121708262021012.91.4824
2026-09-128364742091963705981018.424
2026-09-11817177501222616061471015.2Trace24
2026-09-1090758210017276661102541012.8Trace24
2026-09-099071796014246564101971020.824
2026-09-08846475201020575751991023.824
2026-09-0782667410919586151441020.824
2026-09-0682667410919596281881014.624
2026-09-05847377301222615982781011.00.0424
2026-09-04907382801727696892801011.80.4824
2026-09-038872806015257279102031015.10.8624
2026-09-027772740091971897791018.50.0724
2026-09-01937381601626737871951015.40.8324
Date High
Temp.
Low
Temp.
Avg
Temp.
Temp
Departure
HDD CDD GDD Avg
Dewpoint
Avg
RH
Avg
Wind Speed
Avg
Wind Dir
Avg
Press
Total
Precip
# obs
2026-08-31827277201222677141311019.124
2026-08-30886476101121667271741021.00.0124
2026-08-29826474-10919545171671022.724
2026-08-28887178301323687251801016.1Trace24
2026-08-27836974-20919688181511016.02.3324
2026-08-26866676001121626461811018.224
2026-08-25816473-30818575882891016.724
2026-08-24826474-20919585972191014.324
2026-08-23846675-101020647071881011.00.4324
2026-08-22797074-20919667651081015.90.0324
2026-08-21846474-30919616582071017.524
2026-08-20846976-101121687781321014.30.7124
2026-08-19907382501727656062211012.824
2026-08-18887581401626717261751011.4Trace24
2026-08-17887078101323718062131010.30.1324
2026-08-16816874-30919677861341017.90.7324
2026-08-15907280301525625761261020.324
2026-08-14907783601828655551621016.924
2026-08-13907582401727666092761011.924
2026-08-12907582401727645671981010.7Trace24
2026-08-118873813016266866112511012.224
2026-08-10917582401727686582071015.4Trace24
2026-08-09937584601929706572351015.424
2026-08-08917380201525737982161016.50.0724
2026-08-07937783501828737361981019.40.0924
2026-08-06937885702030757392101019.524
2026-08-0585737800132374865951019.71.5524
2026-08-0490707910142463596811018.424
2026-08-039075824017277274112181009.11.1224
2026-08-02907581301626717291641011.60.2524
2026-08-01907380101525697061601014.024
Date High
Temp.
Low
Temp.
Avg
Temp.
Temp
Departure
HDD CDD GDD Avg
Dewpoint
Avg
RH
Avg
Wind Speed
Avg
Wind Dir
Avg
Press
Total
Precip
# obs
2026-07-31907280101525666672321014.124
2026-07-30827277-2012226465102951008.70.0324
2026-07-29867077-2012226567122891002.9Trace24
2026-07-28847077-2012227081101881004.70.7224
2026-07-27887078-101323666871981009.7Trace24
2026-07-26846475-401020565351641012.924
2026-07-25856675-40102055526811018.624
2026-07-24846475-40102056544801022.424
2026-07-23846675-401020534871751019.424
2026-07-229073812016266663122621008.724
2026-07-21887378-1013237181101851009.30.7524
2026-07-20856476-301121534661261015.124
2026-07-19847378-1013236158112901010.30.0124
2026-07-189273801015257174112151011.70.1124
2026-07-17887382301727615162381016.824
2026-07-16957987802232695881731012.824
2026-07-159978878022327261122141012.924
2026-07-149266812016266763122251018.624
2026-07-13866978-101323636261521022.824
2026-07-12887278-10132364636981020.524
2026-07-11907078-101323717861341013.70.3224
2026-07-10887381201626717382671010.724
2026-07-09817275-401020718871841012.82.7124
2026-07-08867077-201222656771261016.824
2026-07-07796973-5081866798551016.5Trace24
2026-07-06817075-301020718610731015.61.1024
2026-07-05937382401727727461441013.80.9024
2026-07-0410175901202535675082231013.30.3924
2026-07-0310282921402737725482241014.924
2026-07-0210281911302636745992301015.524
2026-07-019773857020307162102161016.124
Date High
Temp.
Low
Temp.
Avg
Temp.
Temp
Departure
HDD CDD GDD Avg
Dewpoint
Avg
RH
Avg
Wind Speed
Avg
Wind Dir
Avg
Press
Total
Precip
# obs
2026-06-30917381401626645792111019.324
2026-06-29907079201424666641131018.624
2026-06-28827076-101121677551071015.2Trace24
2026-06-27797174-3091967784911016.60.2924
2026-06-26847278201323666782351017.1Trace24
2026-06-25886477101222606071451017.424
2026-06-24846475-101020534993011015.424
2026-06-23756872-40717678592641011.70.1924
2026-06-22907178301323667071191013.11.2824
2026-06-21866877201222534582481012.424
2026-06-208666772012224939132881010.2Trace24
2026-06-198473783013235242122881007.024
2026-06-189273828017276458172101003.9Trace24
2026-06-1786647400919616571471009.024
2026-06-16796170-40515474772451011.724
2026-06-15816874109195555142951007.20.3824
2026-06-149370818016266560101981009.40.6824
2026-06-139075831001828584492851012.324
2026-06-1297758614021316961122581007.9Trace24
2026-06-119673841201929716992371008.80.2924
2026-06-10886876401121677492101013.00.3024
2026-06-09825570-10515515282081022.824
2026-06-088163721071751509971023.3Trace24
2026-06-079069809015256055122451011.324
2026-06-069170799014246258112291012.10.0224
2026-06-059266801001525554672131015.924
2026-06-04906177701222494262181020.024
2026-06-0386627450919423462241022.624
2026-06-02795367-20212444972241022.224
2026-06-01815768-10313485291181015.624
Date High
Temp.
Low
Temp.
Avg
Temp.
Temp
Departure
HDD CDD GDD Avg
Dewpoint
Avg
RH
Avg
Wind Speed
Avg
Wind Dir
Avg
Press
Total
Precip
# obs
2026-05-31795265-30010445192191017.124
2026-05-30725565-300104346162591013.124
2026-05-29815770205154746112831013.624
2026-05-28816373608185045133281012.2Trace24
2026-05-2782687470919677972201012.40.1724
2026-05-2681647250717576351741018.724
2026-05-25745765-20010628841341019.30.0524
2026-05-24635358-870355909551024.70.8824
2026-05-23575054-121100498312781029.20.6324
2026-05-22665561-5406506910661026.80.0124
2026-05-21725562-3307547591181022.30.3324
2026-05-209571801501525676782181015.90.2124
2026-05-1999728318018286559102181018.20.0424
2026-05-189764811601626635861571020.324
2026-05-179066781401323605592431017.824
2026-05-16845470605154850101911017.424
2026-05-15685360-45054355112881013.624
2026-05-14665559-46044666112851008.90.0824
2026-05-13775565200104652141921013.40.0924
2026-05-12704659-4604344292111021.424
2026-05-11635458-5703354481881019.30.0124
2026-05-108152642109557551681013.10.0924
2026-05-09685561-1406496781761011.40.0224
2026-05-0872506203073641132651012.524
2026-05-07685260-2505405492771010.10.0724
2026-05-06726468703135768142141009.30.0324
2026-05-058661721107174947152061010.624
2026-05-0475486322083945122151013.024
2026-05-03634654-611002838142931013.324
2026-05-02635256-49013649102861012.2Trace24
2026-05-01664656-4901385292441013.024
Date High
Temp.
Low
Temp.
Avg
Temp.
Temp
Departure
HDD CDD GDD Avg
Dewpoint
Avg
RH
Avg
Wind Speed
Avg
Wind Dir
Avg
Press
Total
Precip
# obs
2026-04-30665057-2802466882441008.60.0624
2026-04-29665057-2802425871471013.80.3924
2026-04-28644657-2802395451771021.0Trace24
2026-04-277343580703415851481023.724
2026-04-26614450-81500427611601019.20.0824
2026-04-25554450-81500437512841014.60.4324
2026-04-247954647109414661171009.524
2026-04-237948647109455661631013.224
2026-04-22664655-21000456961081017.70.0324
2026-04-21573446-101900224082391027.124
2026-04-20553947-91800274692581022.5Trace24
2026-04-19574552-413004372102391013.50.0124
2026-04-187753649109547291001015.524
2026-04-178268762101121554992751011.324
2026-04-169164792501424585271931010.424
2026-04-159063772301222616292131013.20.0124
2026-04-1488617521010205450112271014.80.0924
2026-04-138150671402125260121911019.1Trace24
2026-04-126645563901334391221030.224
2026-04-1167535966043749102561024.324
2026-04-1072435531000426482031026.124
2026-04-09613547-51800336261331034.424
2026-04-08553042-9230019419871035.724
2026-04-07563951014002234152771024.2Trace24
2026-04-06594452113002738132801017.924
2026-04-0573485669014877101871012.70.4124
2026-04-04834865150010567391251020.424
2026-04-0372445561000508561331024.7Trace24
2026-04-02634348-11700448815751027.90.1424
2026-04-018462732408185555112101016.90.4624
Date High
Temp.
Low
Temp.
Avg
Temp.
Temp
Departure
HDD CDD GDD Avg
Dewpoint
Avg
RH
Avg
Wind Speed
Avg
Wind Dir
Avg
Press
Total
Precip
# obs
2026-03-318162722407175252152171016.724
2026-03-30724860125054558152171022.924
2026-03-29593047-11800234291621033.024
2026-03-28483341-624001232133081030.124
2026-03-27724255810004059122891014.60.1324
2026-03-26794864181094552142131012.824
2026-03-2556374601900305591871026.9Trace24
2026-03-24503442-42300224792641028.724
2026-03-23613749416004074151851012.10.1124
2026-03-2275455914604476881631008.9Trace24
2026-03-21634555101000426671931011.5Trace24
2026-03-20663751714003659101961015.70.0924
2026-03-19503341-32400255471911025.024
2026-03-18402833-113200124182171028.624
2026-03-17453338-527001745192791012.70.0224
2026-03-16684561184065786151651003.00.5024
2026-03-1552394631900295212931027.0Trace24
2026-03-14573648517002041132301017.224
2026-03-13483041-124002350122071016.524
2026-03-12703649716004177122681009.40.1624
2026-03-11825267250212536261551010.60.0224
2026-03-1083416221307435851651016.424
2026-03-0975395817703405961881016.424
2026-03-0873475817703507661931010.70.0123
2026-03-0754394552000428931121020.7Trace24
2026-03-064539422230038849711027.20.0424
2026-03-054842466190043906561022.80.4824
2026-03-045039455200041864991024.50.0624
2026-03-03433338-1270033845831030.70.2824
2026-03-02362632-7330011437611036.924
2026-03-01483441224002353101491022.9Trace24
Date High
Temp.
Low
Temp.
Avg
Temp.
Temp
Departure
HDD CDD GDD Avg
Dewpoint
Avg
RH
Avg
Wind Speed
Avg
Wind Dir
Avg
Press
Total
Precip
# obs
2026-02-2861284452100326631131018.624
2026-02-2754284012500245731141019.124
2026-02-2648314022500296652071011.8Trace24
2026-02-2547303802700256181991006.70.0124
2026-02-24342831-734001551132671014.30.1324
2026-02-23393034-431002777203221005.20.1824
2026-02-22413236-12900338711911013.40.5324
2026-02-2152364362200326872201014.924
2026-02-204637425230040928641007.00.5824
2026-02-194537414240035819641015.60.0324
2026-02-184634414240037863651011.7Trace24
2026-02-1743353712800348882091021.324
2026-02-164134371280030799681019.90.0724
2026-02-154530371280029755791017.50.1624
2026-02-1450253712800235881851020.0Trace24
2026-02-13382530-53500145192901022.224
2026-02-12372835030001747143071017.424
2026-02-11463039426002354132661010.2Trace24
2026-02-10392131-43400145131401017.524
2026-02-09311021-14440034892991026.324
2026-02-0820814-215100-641183181024.924
2026-02-07311019-154600148233061011.3Trace24
2026-02-06341927-73800156252261007.2Trace24
2026-02-05341927-7380094862731018.324
2026-02-04362632-23300155062551023.224
2026-02-03371830-43500155462201022.424
2026-02-02361926-83900847123011019.124
2026-02-01271420-144500348173281012.924
Date High
Temp.
Low
Temp.
Avg
Temp.
Temp
Departure
HDD CDD GDD Avg
Dewpoint
Avg
RH
Avg
Wind Speed
Avg
Wind Dir
Avg
Press
Total
Precip
# obs
2026-01-31251018-164700248102941021.224
2026-01-30201016-174900-343112841024.124
2026-01-29231418-154700146122881021.924
2026-01-28231419-144600247102691021.124
2026-01-27251621-124400449132581019.924
2026-01-26281923-1042001263132971012.1Trace24
2026-01-25251518-154700117314671022.41.2324
2026-01-24201116-174900-833122891038.124
2026-01-2340183523000528152861023.624
2026-01-225137451220002038152561018.224
2026-01-21391629-43600124881401029.524
2026-01-20301823-104200-036122851028.924
2026-01-19362129-436001558102521016.224
2026-01-1836273303200298771741015.20.2724
2026-01-1740303632900256861641018.40.1324
2026-01-16372330-33500942142431014.024
2026-01-15452535230001750172651000.30.0324
2026-01-14574449161600294771951002.324
2026-01-1352284062500265972081015.824
2026-01-12453037328002051122451022.724
2026-01-11483643922002859142861012.60.0124
2026-01-1049434511200042886861017.70.9624
2026-01-09553045112000398251471022.40.0424
2026-01-08553444102100336841751022.824
2026-01-07573747131800387472361009.624
2026-01-064530395260033784481011.824
2026-01-05392533-13200226561631021.324
2026-01-04382832-33300175393091019.724
2026-01-03342329-63600114872821015.924
2026-01-02342328-73700104682691010.9Trace24
2026-01-01372430-535001045142801009.4Trace24