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.

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
2020-08-13	81	74	77	0	0	12	22	73	89	4	75	1018.1	0.05	24
2020-08-12	91	73	80	3	0	15	25	74	83	5	150	1016.4	1.44	24
2020-08-11	90	75	82	5	0	17	27	74	79	7	189	1014.6		24
2020-08-10	92	75	82	5	0	17	27	72	74	7	213	1016.8		24
2020-08-09	87	71	79	2	0	14	24	70	77	6	195	1019.5	Trace	24
2020-08-08	85	69	77	0	0	12	22	68	78	4	105	1020.4	Trace	24
2020-08-07	82	69	73	-5	0	8	18	70	90	7	84	1019.1	1.20	24
2020-08-06	82	70	76	-2	0	11	21	68	76	6	118	1018.9	0.31	24
2020-08-05	87	72	80	2	0	15	25	64	61	7	233	1016.6	Trace	24
2020-08-04	83	72	77	-1	0	12	22	70	82	13	162	1009.9	4.16	24
2020-08-03	89	76	82	4	0	17	27	67	62	9	225	1016.4	Trace	24
2020-08-02	93	76	84	6	0	19	29	73	72	11	178	1012.3		24
2020-08-01	89	73	81	3	0	16	26	68	66	5	160	1013.3		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
2020-07-31	84	73	77	-1	0	12	22	70	81	4	105	1009.7	0.12	24
2020-07-30	94	74	84	6	0	19	29	69	63	7	205	1011.0	0.20	24
2020-07-29	92	78	85	7	0	20	30	63	50	7	240	1012.9		24
2020-07-28	93	79	86	8	0	21	31	69	59	10	256	1010.0		24
2020-07-27	95	77	86	8	0	21	31	68	58	10	221	1011.3		24
2020-07-26	94	77	85	7	0	20	30	70	67	9	235	1016.0	Trace	24
2020-07-25	88	73	80	2	0	15	25	70	74	5	138	1018.8		24
2020-07-24	86	75	77	-1	0	12	22	72	84	6	177	1018.0	0.14	24
2020-07-23	90	75	82	4	0	17	27	73	76	9	217	1017.0	0.12	24
2020-07-22	94	74	82	4	0	17	27	72	75	7	196	1016.6	0.45	24
2020-07-21	94	77	87	9	0	22	32	65	49	6	190	1015.7	Trace	24
2020-07-20	94	81	88	10	0	23	33	72	61	9	237	1011.6		24
2020-07-19	94	75	85	7	0	20	30	70	63	8	197	1013.8		24
2020-07-18	93	75	85	7	0	20	30	65	54	5	199	1017.4		24
2020-07-17	90	69	79	1	0	14	24	70	76	6	193	1019.4	0.01	24
2020-07-16	83	68	74	-4	0	9	19	63	70	9	116	1024.5		24
2020-07-15	88	71	78	0	0	13	23	64	63	7	130	1020.8		24
2020-07-14	86	70	80	2	0	15	25	58	49	8	320	1015.1		24
2020-07-13	88	71	79	1	0	14	24	63	61	7	250	1010.0	0.09	24
2020-07-12	90	72	82	4	0	17	27	63	55	10	245	1007.6	0.02	24
2020-07-11	89	73	81	3	0	16	26	69	69	10	213	1005.7	Trace	24
2020-07-10	77	73	75	-3	0	10	20	72	92	14	145	1008.6	4.15	24
2020-07-09	92	74	82	5	0	17	27	70	72	6	105	1014.9		24
2020-07-08	91	75	81	4	0	16	26	70	71	6	168	1015.6		24
2020-07-07	87	68	78	1	0	13	23	68	72	6	107	1017.9		24
2020-07-06	91	71	78	1	0	13	23	70	76	8	183	1016.8	0.24	24
2020-07-05	94	73	83	6	0	18	28	69	65	8	230	1014.1		24
2020-07-04	90	73	80	3	0	15	25	67	66	6	118	1012.7		24
2020-07-03	97	75	86	9	0	21	31	61	46	9	278	1010.4	Trace	24
2020-07-02	93	69	82	6	0	17	27	62	55	8	252	1010.6		24
2020-07-01	85	70	76	0	0	11	21	64	69	5	162	1011.5	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
2020-06-30	85	71	77	1	0	12	22	60	57	6	156	1012.0	Trace	24
2020-06-29	90	74	82	6	0	17	27	61	52	11	272	1009.6		24
2020-06-28	90	76	82	7	0	17	27	66	61	8	233	1007.1	0.01	24
2020-06-27	88	72	80	5	0	15	25	66	63	12	231	1009.6	0.03	24
2020-06-26	86	68	78	3	0	13	23	59	54	8	236	1014.8		24
2020-06-25	84	72	77	2	0	12	22	59	54	6	209	1014.4	Trace	24
2020-06-24	84	76	80	5	0	15	25	59	51	12	259	1008.0		24
2020-06-23	90	71	81	7	0	16	26	68	68	7	180	1008.2	Trace	24
2020-06-22	89	70	78	4	0	13	23	67	72	7	205	1014.1		24
2020-06-21	85	67	76	2	0	11	21	66	73	4	95	1015.8		24
2020-06-20	84	67	74	0	0	9	19	65	77	3	92	1017.5	0.55	24
2020-06-19	85	66	75	2	0	10	20	63	67	5	143	1019.4		24
2020-06-18	83	63	71	-2	0	6	16	64	80	8	90	1020.6	0.11	24
2020-06-17	76	61	68	-5	0	3	13	59	73	11	65	1023.3		24
2020-06-16	77	59	68	-5	0	3	13	50	55	11	87	1027.2		24
2020-06-15	77	58	67	-6	0	2	12	50	56	10	71	1028.4		24
2020-06-14	76	56	66	-6	0	1	11	44	45	10	68	1027.1		24
2020-06-13	76	62	69	-3	0	4	14	43	40	10	239	1022.0		24
2020-06-12	85	68	78	6	0	13	23	53	45	9	289	1018.7		24
2020-06-11	80	72	76	4	0	11	21	70	81	10	201	1015.9	0.62	24
2020-06-10	90	71	80	9	0	15	25	70	71	10	171	1013.8		24
2020-06-09	87	64	76	5	0	11	21	56	52	8	223	1014.8		24
2020-06-08	79	59	71	0	0	6	16	45	40	8	262	1016.7		24
2020-06-07	78	65	72	2	0	7	17	47	41	12	252	1013.2		24
2020-06-06	89	70	79	9	0	14	24	63	64	9	263	1009.1	Trace	24
2020-06-05	86	69	76	6	0	11	21	70	83	7	177	1012.3	0.35	24
2020-06-04	89	68	78	8	0	13	23	64	65	6	165	1011.0	0.66	24
2020-06-03	88	64	74	5	0	9	19	62	67	10	234	1005.9	0.89	23
2020-06-02	73	59	66	-3	0	1	11	46	49	9	235	1016.0		24
2020-06-01	73	51	63	-6	2	0	8	36	37	10	258	1022.7		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
2020-05-31	71	59	65	-4	0	0	10	37	36	13	307	1018.7		24
2020-05-30	82	69	75	7	0	10	20	55	53	9	285	1013.1	Trace	24
2020-05-29	84	71	77	9	0	12	22	69	78	11	192	1015.1		24
2020-05-28	80	67	73	5	0	8	18	68	84	8	142	1019.9	0.07	24
2020-05-27	81	61	70	3	0	5	15	61	76	4	119	1022.8		24
2020-05-26	81	59	68	1	0	3	13	60	78	4	119	1022.6		23
2020-05-25	75	57	65	-2	0	0	10	57	77	6	87	1022.6	Trace	24
2020-05-24	70	53	60	-6	5	0	5	51	72	10	70	1023.1	Trace	24
2020-05-23	75	59	67	1	0	2	12	62	84	7	147	1015.8	1.05	24
2020-05-22	71	55	63	-3	2	0	8	58	84	6	88	1020.0	0.38	24
2020-05-21	73	45	58	-7	7	0	3	46	65	7	81	1027.7		22
2020-05-20	62	47	55	-10	10	0	0	35	47	14	74	1028.8		24
2020-05-19	67	54	59	-6	6	0	4	36	49	17	70	1023.0		24
2020-05-18	67	54	60	-5	5	0	5	47	64	11	69	1019.1		24
2020-05-17	69	55	61	-3	4	0	6	49	64	9	103	1023.1		24
2020-05-16	78	63	71	7	0	6	16	53	54	8	220	1017.3		24
2020-05-15	85	62	73	9	0	8	18	58	62	13	225	1014.7	0.06	24
2020-05-14	73	46	61	-2	4	0	6	44	57	7	138	1023.4	Trace	24
2020-05-13	66	41	55	-8	10	0	0	28	38	8	223	1025.5		24
2020-05-12	60	42	52	-11	13	0	0	27	39	14	282	1018.9		24
2020-05-11	60	47	53	-9	12	0	0	37	58	14	262	1012.8	0.06	24
2020-05-10	64	39	52	-10	13	0	0	26	37	15	232	1019.3		24
2020-05-09	48	35	41	-21	24	0	0	19	41	19	287	1014.8	0.01	24
2020-05-08	57	39	51	-10	14	0	0	37	60	9	118	1007.9	0.31	24
2020-05-07	65	45	56	-5	9	0	1	32	47	11	286	1009.8		24
2020-05-06	54	45	50	-11	15	0	0	41	72	8	120	1009.7	0.09	24
2020-05-05	59	47	54	-6	11	0	0	27	37	8	268	1013.6		23
2020-05-04	74	52	64	4	1	0	9	43	51	14	304	1007.4	0.01	24
2020-05-03	79	56	66	6	0	1	11	53	64	9	212	1008.6	0.15	24
2020-05-02	72	51	63	4	2	0	8	39	44	11	288	1015.2		24
2020-05-01	67	57	61	2	4	0	6	51	71	7	225	1006.6	0.01	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
2020-04-30	69	56	63	5	2	0	8	55	79	15	139	1011.6	0.29	24
2020-04-29	68	51	57	-1	8	0	2	45	65	13	95	1020.0		24
2020-04-28	64	45	57	-1	8	0	2	34	44	9	208	1020.5		17
2020-04-27	55	42	47	-10	18	0	0	36	68	14	313	1014.1	0.01	24
2020-04-26	51	46	49	-8	16	0	0	45	87	10	75	1010.1	0.14	24
2020-04-25	67	43	54	-3	11	0	0	39	62	5	87	1016.6	0.01	24
2020-04-24	52	45	48	-8	17	0	0	45	88	9	87	1007.3	0.79	24
2020-04-23	59	42	48	-8	17	0	0	29	51	7	97	1016.3	0.26	24
2020-04-22	54	37	45	-11	20	0	0	15	31	16	283	1013.8		24
2020-04-21	64	42	52	-3	13	0	0	37	60	14	237	1003.1	0.10	24
2020-04-20	57	47	53	-2	12	0	0	35	53	8	161	1004.4		24
2020-04-19	61	36	51	-4	14	0	0	32	51	11	222	1012.1		24
2020-04-18	49	39	46	-8	19	0	0	33	63	10	209	1010.2	0.06	24
2020-04-17	52	34	45	-9	20	0	0	24	44	7	212	1022.4	Trace	24
2020-04-16	49	40	45	-9	20	0	0	20	37	14	275	1020.6		24
2020-04-15	52	40	46	-7	19	0	0	25	46	12	288	1016.1	0.03	24
2020-04-14	57	46	52	-1	13	0	0	29	40	10	288	1017.5	Trace	24
2020-04-13	72	57	63	11	2	0	8	54	76	18	203	1006.6	1.69	24
2020-04-12	68	39	56	4	9	0	1	39	54	8	124	1019.3	Trace	24
2020-04-11	56	36	47	-5	18	0	0	21	37	13	266	1014.9		24
2020-04-10	49	41	45	-6	20	0	0	22	40	23	284	1002.1		24
2020-04-09	65	47	53	2	12	0	0	38	63	13	194	996.6	0.05	23
2020-04-08	74	49	61	10	4	0	6	50	70	10	227	1001.7	0.27	24
2020-04-07	66	45	57	6	8	0	2	40	58	6	164	1012.0		24
2020-04-06	66	50	58	8	7	0	3	34	45	9	265	1016.3	Trace	24
2020-04-05	67	45	56	6	9	0	1	44	66	8	219	1017.0		24
2020-04-04	56	49	51	1	14	0	0	42	71	8	226	1015.5	Trace	24
2020-04-03	56	48	51	2	14	0	0	31	47	19	330	1007.4	Trace	24
2020-04-02	58	41	49	0	16	0	0	24	38	19	320	1008.5		21
2020-04-01	64	36	47	-2	18	0	0	30	51	13	179	1009.3	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
2020-03-31	47	42	45	-3	20	0	0	39	80	9	81	1015.0	0.02	24
2020-03-30	60	45	50	2	15	0	0	46	87	5	115	1013.6	0.06	24
2020-03-29	52	47	50	2	15	0	0	47	90	9	62	1013.0	Trace	24
2020-03-28	54	47	50	3	15	0	0	44	82	8	83	1017.1	1.14	24
2020-03-27	68	49	58	11	7	0	3	41	57	7	282	1012.0	Trace	24
2020-03-26	59	36	47	0	18	0	0	35	63	7	235	1016.0		24
2020-03-25	48	41	44	-2	21	0	0	36	74	13	83	1016.9	0.01	24
2020-03-24	58	39	48	2	17	0	0	35	63	7	188	1019.8		24
2020-03-23	45	38	41	-5	24	0	0	36	81	12	135	1024.8	0.80	24
2020-03-22	45	36	41	-4	24	0	0	21	46	13	119	1035.6		24
2020-03-21	67	43	51	6	14	0	0	28	41	11	314	1024.9	Trace	24
2020-03-20	78	49	63	18	2	0	8	52	71	10	183	1014.9	Trace	24
2020-03-19	56	43	49	5	16	0	0	44	84	6	76	1023.6	0.99	24
2020-03-18	58	41	49	5	16	0	0	29	48	8	185	1030.3	0.02	24
2020-03-17	57	41	48	4	17	0	0	38	69	7	185	1023.2	0.03	24
2020-03-16	50	36	43	-1	22	0	0	24	48	11	80	1032.8		24
2020-03-15	55	41	46	3	19	0	0	30	55	6	166	1030.7	0.01	24
2020-03-14	57	45	51	8	14	0	0	19	29	12	288	1026.9	Trace	24
2020-03-13	72	49	59	16	6	0	4	40	61	13	207	1012.7	0.37	24
2020-03-12	59	41	48	6	17	0	0	38	69	7	87	1019.2	Trace	24
2020-03-11	58	45	52	10	13	0	0	32	49	7	183	1019.0	Trace	24
2020-03-10	67	49	59	17	6	0	4	43	59	12	226	1019.1	Trace	24
2020-03-09	71	40	55	14	10	0	0	28	39	10	221	1027.9		24
2020-03-08	59	30	46	5	19	0	0	19	37	10	227	1031.3		23
2020-03-07	47	36	40	-1	25	0	0	19	45	15	335	1024.3	Trace	24
2020-03-06	44	34	39	-1	26	0	0	33	80	9	179	1012.1	0.35	24
2020-03-05	52	41	46	6	19	0	0	24	41	8	235	1019.4		24
2020-03-04	59	44	52	12	13	0	0	28	40	14	253	1009.9		24
2020-03-03	59	42	51	12	14	0	0	45	80	7	205	1004.6	0.12	24
2020-03-02	63	32	49	10	16	0	0	30	50	10	167	1014.3	0.04	24
2020-03-01	45	26	36	-3	29	0	0	13	38	11	267	1022.0		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
2020-02-29	34	28	32	-6	33	0	0	11	42	13	293	1014.7		23
2020-02-28	41	30	37	-1	28	0	0	16	42	16	251	1012.1	Trace	24
2020-02-27	48	32	39	1	26	0	0	21	51	23	259	1005.2	0.21	24
2020-02-26	51	45	48	11	17	0	0	44	86	7	82	1010.4	0.21	24
2020-02-25	49	45	47	10	18	0	0	44	87	5	106	1011.5	0.17	24
2020-02-24	60	30	46	9	19	0	0	30	51	4	93	1016.6		24
2020-02-23	56	28	42	5	23	0	0	17	42	6	206	1022.4		24
2020-02-22	50	25	38	2	27	0	0	11	36	11	236	1026.0		24
2020-02-21	36	21	29	-7	36	0	0	5	38	10	222	1032.1		24
2020-02-20	37	29	34	-2	31	0	0	10	37	9	298	1031.0		24
2020-02-19	52	37	46	10	20	0	0	20	36	12	315	1024.6	Trace	24
2020-02-18	61	36	49	14	16	0	0	37	63	8	156	1021.1		24
2020-02-17	51	37	43	8	22	0	0	25	50	5	156	1024.3		24
2020-02-16	49	29	39	4	26	0	0	26	59	6	208	1022.1		24
2020-02-15	32	15	24	-11	41	0	0	3	42	7	166	1034.8		24
2020-02-14	40	20	32	-2	33	0	0	10	42	14	295	1026.7		24
2020-02-13	48	36	42	8	23	0	0	37	82	8	224	1008.1	0.22	24
2020-02-12	46	37	42	8	23	0	0	24	50	7	233	1021.0	0.06	24
2020-02-11	51	45	48	14	17	0	0	42	82	6	193	1013.8	0.43	24
2020-02-10	46	42	44	10	21	0	0	38	78	11	200	1022.1	0.26	24
2020-02-09	47	30	39	6	26	0	0	24	55	6	151	1031.0		24
2020-02-08	43	31	37	4	28	0	0	18	47	11	229	1022.4		24
2020-02-07	60	35	45	12	20	0	0	36	72	18	202	992.9	0.23	24
2020-02-06	46	36	41	8	24	0	0	38	90	4	70	1002.2	0.48	24
2020-02-05	53	36	42	9	23	0	0	30	62	10	99	1015.3	0.04	24
2020-02-04	64	43	52	19	13	0	0	44	74	5	192	1009.5	0.10	24
2020-02-03	60	34	47	14	18	0	0	34	62	7	186	1010.1		24
2020-02-02	43	35	38	5	27	0	0	32	77	8	195	1002.9	Trace	24
2020-02-01	44	35	39	7	26	0	0	35	86	4	150	1013.0	0.04	23
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
2020-01-31	46	29	39	7	26	0	0	30	71	3	95	1025.2	0.04	24
2020-01-30	39	25	31	-1	34	0	0	17	54	7	71	1026.0		24
2020-01-29	44	31	38	6	27	0	0	17	42	11	275	1019.1		24
2020-01-28	42	38	40	8	25	0	0	23	52	13	324	1012.3		24
2020-01-27	45	32	41	9	24	0	0	27	58	12	265	1008.2		24
2020-01-26	47	35	40	8	25	0	0	28	63	10	258	1010.8		24
2020-01-25	52	38	46	14	19	0	0	41	83	13	159	1012.3	1.60	24
2020-01-24	57	28	42	10	23	0	0	30	65	7	63	1026.0		24
2020-01-23	44	25	35	3	30	0	0	19	55	1	69	1029.4		24
2020-01-22	39	23	30	-2	35	0	0	15	54	3	141	1031.6		24
2020-01-21	34	20	27	-5	38	0	0	7	42	10	337	1031.7		24
2020-01-20	32	23	27	-5	38	0	0	5	40	13	341	1026.1	Trace	24
2020-01-19	42	27	36	4	29	0	0	23	62	14	280	1011.3	0.03	24
2020-01-18	39	22	28	-4	37	0	0	14	57	9	181	1027.3	0.25	24
2020-01-17	34	23	29	-3	36	0	0	4	35	16	337	1036.9		24
2020-01-16	51	35	45	13	20	0	0	27	52	18	280	1017.7	Trace	24
2020-01-15	53	39	46	14	19	0	0	36	74	6	220	1021.2	Trace	24
2020-01-14	46	38	43	11	22	0	0	39	88	4	53	1024.4	0.03	24
2020-01-13	48	38	44	12	21	0	0	35	73	5	69	1028.7		24
2020-01-12	67	43	60	28	5	0	5	46	61	16	240	1020.0	0.20	24
2020-01-11	67	48	59	27	6	0	4	50	73	10	169	1022.5		24
2020-01-10	55	29	43	11	22	0	0	34	71	5	149	1034.0	Trace	24
2020-01-09	34	24	29	-3	36	0	0	9	43	6	219	1039.8		24
2020-01-08	40	30	35	2	30	0	0	21	57	16	271	1020.0	Trace	24
2020-01-07	46	32	37	4	28	0	0	25	61	7	157	1016.2	0.13	24
2020-01-06	50	35	41	8	24	0	0	23	50	10	228	1016.4		24
2020-01-05	41	35	39	6	26	0	0	21	48	16	295	1013.4		24
2020-01-04	54	42	49	16	16	0	0	45	89	7	204	1003.9	0.15	24
2020-01-03	49	44	46	13	19	0	0	42	87	5	188	1010.3	0.21	24
2020-01-02	47	28	39	6	26	0	0	28	65	4	165	1014.1		24
2020-01-01	42	30	38	4	27	0	0	23	56	9	245	1010.4	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