The Pennsylvania State Climatologist is a service to the Commonwealth by the College of Earth and Mineral Sciences and Penn State.

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.

2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966 1965 1964 1963 1962 1961 1960 1959 1958 1957 1956 1955 1954 1953 1952 1951 1950 1949 1948

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
2024-05-02	79	55	60	0	5	0	5	56	87	4	127	1015.5		13
2024-05-01	81	59	69	9	0	4	14	55	64	6	158	1013.0	0.05	24
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
2024-04-30	84	61	73	13	0	8	18	59	65	6	109	1011.2		24
2024-04-29	90	59	75	16	0	10	20	58	61	5	161	1015.2		24
2024-04-28	81	50	64	5	1	0	9	53	70	6	167	1021.2	0.13	24
2024-04-27	59	43	51	-8	14	0	0	36	59	6	139	1031.5	Trace	24
2024-04-26	65	39	52	-6	13	0	0	32	51	6	123	1030.9		24
2024-04-25	61	44	52	-6	13	0	0	33	49	8	93	1025.2		24
2024-04-24	72	52	61	3	4	0	6	41	48	11	224	1013.0		24
2024-04-23	70	39	54	-3	11	0	0	36	54	7	141	1019.0		24
2024-04-22	63	39	51	-6	14	0	0	28	43	8	274	1018.5		24
2024-04-21	54	42	48	-9	17	0	0	25	41	9	275	1016.9		24
2024-04-20	72	51	59	3	6	0	4	42	63	11	238	1014.5	0.10	24
2024-04-19	57	44	51	-5	14	0	0	44	77	6	122	1019.7	Trace	24
2024-04-18	55	46	52	-4	13	0	0	46	82	11	47	1017.2		24
2024-04-17	66	50	57	2	8	0	2	49	75	6	100	1018.4	0.13	24
2024-04-16	73	54	64	9	1	0	9	37	39	9	231	1019.9		24
2024-04-15	84	59	70	16	0	5	15	53	57	9	236	1009.8	Trace	24
2024-04-14	76	45	62	8	3	0	7	39	46	14	227	1011.3	0.01	24
2024-04-13	61	50	56	2	9	0	1	34	45	20	272	1006.8	Trace	24
2024-04-12	66	57	63	10	2	0	8	51	69	19	214	997.1	0.35	24
2024-04-11	73	54	62	9	3	0	7	57	83	12	116	1010.6	0.03	24
2024-04-10	74	54	63	10	2	0	8	52	67	5	107	1015.3		24
2024-04-09	79	45	62	10	3	0	7	43	54	3	104	1017.0		24
2024-04-08	66	36	53	1	12	0	0	37	59	4	144	1021.1		24
2024-04-07	63	41	51	0	14	0	0	30	45	11	272	1017.9		24
2024-04-06	55	41	48	-3	17	0	0	29	49	16	322	1011.4	Trace	24
2024-04-05	54	41	46	-5	19	0	0	31	58	13	287	1005.5	Trace	24
2024-04-04	54	39	46	-4	19	0	0	38	76	11	261	996.7	0.12	24
2024-04-03	46	43	45	-5	20	0	0	43	93	17	77	1000.2	1.43	24
2024-04-02	48	46	47	-2	18	0	0	45	94	9	79	1011.6	1.37	24
2024-04-01	54	46	50	1	15	0	0	46	87	5	54	1014.1	0.46	24
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
2024-03-31	61	45	53	4	12	0	0	41	68	7	274	1012.5		24
2024-03-30	61	37	50	2	15	0	0	30	49	11	256	1010.9	0.05	24
2024-03-29	57	41	49	1	16	0	0	22	36	16	310	1010.2		24
2024-03-28	52	45	48	0	17	0	0	43	82	9	257	1014.5	0.11	24
2024-03-27	50	43	46	-1	19	0	0	42	85	4	111	1019.2	0.29	24
2024-03-26	61	37	46	-1	19	0	0	32	57	7	71	1022.3		24
2024-03-25	54	34	44	-2	21	0	0	24	47	9	59	1029.1		24
2024-03-24	49	28	39	-7	26	0	0	20	48	11	172	1024.0		24
2024-03-23	52	33	44	-2	21	0	0	39	84	15	209	1011.2	3.09	24
2024-03-22	46	28	38	-7	27	0	0	17	44	8	113	1027.3		24
2024-03-21	45	28	37	-8	28	0	0	9	32	13	297	1021.3		24
2024-03-20	63	37	48	3	17	0	0	26	44	15	241	1005.7	Trace	24
2024-03-19	48	34	41	-3	24	0	0	19	42	13	252	1009.2		24
2024-03-18	54	39	45	1	20	0	0	20	38	16	303	1008.0		24
2024-03-17	64	48	56	12	9	0	1	35	50	11	264	1003.2		24
2024-03-16	61	45	52	9	13	0	0	34	53	9	261	1010.1		24
2024-03-15	75	52	62	19	3	0	7	45	54	12	244	1008.2	Trace	24
2024-03-14	77	46	61	18	4	0	6	38	46	5	175	1015.5		24
2024-03-13	73	43	58	15	7	0	3	36	49	6	186	1012.9		24
2024-03-12	67	41	54	12	11	0	0	29	39	12	257	1012.0		24
2024-03-11	55	37	46	4	19	0	0	18	34	21	288	1009.1		24
2024-03-10	50	37	45	3	20	0	0	31	62	19	280	1000.2	Trace	23
2024-03-09	52	39	44	3	21	0	0	41	88	10	116	1013.9	1.16	24
2024-03-08	57	41	47	6	18	0	0	34	62	8	85	1025.0		24
2024-03-07	57	48	54	13	11	0	0	46	77	12	320	1012.7	0.06	24
2024-03-06	52	48	49	9	16	0	0	48	94	7	82	1014.1	1.00	24
2024-03-05	50	43	46	6	19	0	0	44	92	10	138	1019.7	0.26	24
2024-03-04	66	44	53	13	12	0	0	46	78	7	61	1026.4		24
2024-03-03	66	43	55	15	10	0	0	45	73	6	233	1022.5		24
2024-03-02	56	39	48	9	17	0	0	46	95	9	130	1023.5	1.17	24
2024-03-01	50	30	40	1	25	0	0	20	47	6	131	1035.3	Trace	24
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
2024-02-29	43	32	38	-1	27	0	0	13	36	15	290	1026.3		24
2024-02-28	63	43	57	18	8	0	2	51	80	16	212	1005.8	0.11	24
2024-02-27	65	36	51	12	14	0	0	42	75	8	123	1013.8	0.11	24
2024-02-26	58	30	44	6	21	0	0	31	62	4	158	1017.4		24
2024-02-25	45	21	32	-6	33	0	0	12	44	7	222	1020.5		24
2024-02-24	45	28	38	0	27	0	0	23	57	11	286	1007.2	0.05	24
2024-02-23	48	39	44	6	21	0	0	39	81	6	201	999.6	Trace	24
2024-02-22	48	27	38	1	27	0	0	31	77	5	114	1015.0	0.08	24
2024-02-21	47	25	35	-2	30	0	0	23	61	5	123	1029.4		24
2024-02-20	45	25	34	-3	31	0	0	14	46	6	56	1031.3		24
2024-02-19	45	28	37	0	28	0	0	18	47	7	228	1021.8		24
2024-02-18	45	25	34	-3	31	0	0	15	46	15	235	1013.3		24
2024-02-17	37	27	33	-3	32	0	0	21	66	12	236	1010.8	0.19	24
2024-02-16	43	34	39	3	26	0	0	17	41	13	245	1013.5		24
2024-02-15	40	26	34	-2	31	0	0	18	53	8	240	1019.0	Trace	24
2024-02-14	39	30	36	0	29	0	0	14	41	14	293	1018.5	Trace	24
2024-02-13	43	33	38	3	27	0	0	30	75	15	206	1004.1	0.75	24
2024-02-12	50	39	45	10	20	0	0	35	69	4	70	1011.6	0.10	24
2024-02-11	50	43	47	12	18	0	0	37	70	4	143	1013.1		24
2024-02-10	55	39	47	12	18	0	0	40	77	4	169	1012.0		24
2024-02-09	57	39	47	12	18	0	0	35	65	5	158	1018.8		24
2024-02-08	54	32	42	7	23	0	0	29	63	5	179	1025.7		24
2024-02-07	49	28	38	4	27	0	0	22	54	6	202	1025.8		24
2024-02-06	45	27	36	2	29	0	0	15	44	8	61	1021.6		24
2024-02-05	48	30	39	5	26	0	0	20	48	7	111	1014.3		24
2024-02-04	49	30	39	5	26	0	0	23	53	5	221	1015.8		24
2024-02-03	46	36	40	6	25	0	0	24	53	10	316	1017.6		24
2024-02-02	46	39	43	9	22	0	0	35	76	9	260	1012.6	0.09	22
2024-02-01	48	30	39	5	26	0	0	32	77	6	201	1016.7		19
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
2024-01-31	43	36	40	6	25	0	0	31	72	4	137	1019.6		21
2024-01-30	39	34	37	4	28	0	0	26	65	6	154	1022.1		22
2024-01-29	43	36	39	6	26	0	0	30	69	14	282	1012.0	Trace	24
2024-01-28	43	37	41	8	24	0	0	38	91	12	121	1008.6	0.89	24
2024-01-27	54	42	46	13	19	0	0	42	86	4	105	1022.0		24
2024-01-26	52	45	48	15	17	0	0	47	97	6	61	1017.1	0.16	24
2024-01-25	54	43	50	17	15	0	0	49	99	3	110	1020.7	0.21	24
2024-01-24	46	35	40	7	25	0	0	37	90	3	52	1030.2	0.01	24
2024-01-23	45	27	36	3	29	0	0	25	67	3	103	1032.8		24
2024-01-22	36	17	27	-6	38	0	0	15	61	8	233	1034.9		24
2024-01-21	34	21	26	-7	39	0	0	10	52	11	299	1029.3		24
2024-01-20	25	16	22	-11	43	0	0	9	58	13	294	1018.1		24
2024-01-19	31	25	28	-5	37	0	0	24	83	8	169	1011.1	0.30	24
2024-01-18	32	21	28	-5	37	0	0	14	58	7	207	1021.0	Trace	24
2024-01-17	25	14	21	-12	44	0	0	5	51	14	264	1018.6		24
2024-01-16	30	19	27	-6	38	0	0	21	81	11	179	1012.5	0.23	24
2024-01-15	29	25	27	-6	38	0	0	13	59	5	180	1024.0	0.19	24
2024-01-14	46	27	35	2	30	0	0	15	46	17	255	1014.7	Trace	24
2024-01-13	59	34	48	14	17	0	0	37	69	20	230	997.2	0.38	24
2024-01-12	52	32	43	9	22	0	0	32	67	9	114	1016.8	0.36	24
2024-01-11	49	37	43	9	22	0	0	28	55	10	245	1012.1		24
2024-01-10	59	44	49	15	16	0	0	35	59	20	248	995.5		24
2024-01-09	58	36	48	14	17	0	0	44	88	17	115	1008.4	2.09	18
2024-01-08	48	35	41	7	24	0	0	27	58	9	295	1026.6		19
2024-01-07	43	37	39	5	26	0	0	33	79	12	246	1006.9	0.06	24
2024-01-06	41	27	33	-1	32	0	0	29	85	9	85	1015.2	1.03	24
2024-01-05	38	25	31	-3	34	0	0	16	53	8	275	1026.1		24
2024-01-04	45	30	38	3	27	0	0	24	58	9	260	1017.6		24
2024-01-03	45	28	37	2	28	0	0	26	66	6	233	1017.5		24
2024-01-02	45	32	38	3	27	0	0	24	59	9	312	1019.1		24
2024-01-01	47	37	43	8	22	0	0	33	68	6	190	1017.0	Trace	24

Mailing Address:

Pennsylvania State Climatologist
503 Walker Building
University Park, PA 16802

Online:

Data Request Form

E-mail:

psc@meteo.psu.edu

Phone:

814-865-8732