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

Williamsport

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	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/30/1971	2100	10.0		54.0	39.9	59	320	16.1
04/30/1971	1800	10.0		54.0	41.0	61	290	9.2
04/30/1971	1500	7.0		48.9	45.0	86	310	9.2						-SHRA
04/30/1971	1200	7.0		46.9	42.1	83	270	8.1
04/30/1971	0900	7.0		46.0	42.1	86	250	5.8
04/30/1971	0600	7.0		46.9	41.0	80	260	11.5
04/30/1971	0300	7.0		48.0	39.9	73	280	11.5
04/30/1971	0000	15.0		50.0	37.9	63	270	11.5
04/29/1971	2100	20.0		51.1	39.9	66	280	12.7
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/29/1971	1800	20.0		50.0	39.9	68	260	16.1
04/29/1971	1500	10.0		51.1	43.0	74	280	15.0
04/29/1971	1200	7.0		46.9	45.0	93	300	9.2
04/29/1971	0900	5.0		46.0	46.0	100	320	4.6						FG
04/29/1971	0600	5.0		46.9	46.9	100	310	5.8						-SHRA FG
04/29/1971	0300	7.0		46.0	46.0	100	0	0.0
04/29/1971	0000	4.0		51.1	48.9	92	50	10.4				0.26		FG
04/28/1971	2100	5.0		51.1	48.9	92	90	8.1						FG
04/28/1971	1800	10.5		50.0	48.9	96	150	17.3
04/28/1971	1500	2.0		48.9	46.9	93	140	13.8						-RA FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/28/1971	1200	7.0		48.9	43.0	80	110	10.4						-RA
04/28/1971	0900	7.0		50.0	35.1	56	80	12.7
04/28/1971	0600	7.0		50.0	35.1	56	160	3.5
04/28/1971	0300	7.0		52.0	35.1	52	80	10.4
04/28/1971	0000	20.0		57.0	33.1	40	130	3.5
04/27/1971	2100	25.0		62.1	34.0	35	50	9.2
04/27/1971	1800	25.0		57.9	33.1	39	310	4.6
04/27/1971	1500	25.0		53.1	37.0	54	290	8.1
04/27/1971	1200	9.0		41.0	35.1	79	270	11.5
04/27/1971	0900	7.0		37.9	32.0	79	270	11.5
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/27/1971	0600	7.0		39.9	35.1	83	270	11.5
04/27/1971	0300	7.0		43.0	35.1	73	290	5.8
04/27/1971	0000	15.0		46.0	35.1	65	330	16.1
04/26/1971	2100	25.0		52.0	37.0	57	320	16.1
04/26/1971	1800	15.0		46.9	41.0	80	300	17.3						-SHRA
04/26/1971	1500	4.0		42.1	41.0	96	140	3.5						-RA FG
04/26/1971	1200	7.0		39.0	37.0	93	0	0.0						-SHRA
04/26/1971	0900	7.0		37.9	34.0	86	0	0.0
04/26/1971	0600	7.0		41.0	37.0	86	300	5.8
04/26/1971	0300	7.0		43.0	34.0	70	270	5.8
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/26/1971	0000	15.0		48.0	34.0	58	300	10.4
04/25/1971	2100	20.0		48.9	35.1	59	280	15.0
04/25/1971	1800	20.0		48.0	35.1	61	280	16.1
04/25/1971	1500	20.0		45.0	34.0	65	240	15.0
04/25/1971	1200	10.0		42.1	34.0	73	260	16.1
04/25/1971	0900	7.0		39.9	33.1	76	280	9.2
04/25/1971	0600	7.0		39.9	33.1	76	280	6.9
04/25/1971	0300	7.0		37.0	33.1	85	260	9.2						-SHSN
04/25/1971	0000	3.0		37.9	34.0	86	260	13.8						-SHSN
04/24/1971	2100	15.0		45.0	28.9	53	290	20.7
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/24/1971	1800	10.0		55.0	32.0	41	270	17.3
04/24/1971	1500	20.0		57.0	27.0	31	140	16.1
04/24/1971	1200	20.0		39.0	30.0	70	0	0.0
04/24/1971	0900	7.0		34.0	27.0	75	0	0.0							CLR
04/24/1971	0600	7.0		36.0	26.1	67	0	0.0							CLR
04/24/1971	0300	7.0		45.0	26.1	47	0	0.0							CLR
04/24/1971	0000	25.0		59.0	18.0	20	280	11.5
04/23/1971	2100	25.0		63.0	19.9	19	250	10.4
04/23/1971	1800	25.0		61.0	21.0	21	270	10.4							CLR
04/23/1971	1500	25.0		55.0	24.1	30	290	19.6							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/23/1971	1200	25.0		42.1	28.0	57	240	17.3							CLR
04/23/1971	0900	7.0		39.9	28.9	65	270	15.0							CLR
04/23/1971	0600	7.0		44.1	26.1	49	270	13.8							CLR
04/23/1971	0300	7.0		48.0	25.0	40	300	16.1							CLR
04/23/1971	0000	25.0		52.0	24.1	33	310	18.4
04/22/1971	2100	25.0		54.0	28.0	37	300	16.1
04/22/1971	1800	25.0		54.0	36.0	50	310	15.0
04/22/1971	1500	25.0		48.9	36.0	61	310	17.3
04/22/1971	1200	20.0		46.0	33.1	60	290	15.0
04/22/1971	0900	7.0		46.0	33.1	60	280	11.5
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/22/1971	0600	7.0		48.0	30.9	51	320	17.3
04/22/1971	0300	7.0		46.9	30.0	52	320	16.1
04/22/1971	0000	25.0		51.1	33.1	50	320	11.5
04/21/1971	2100	25.0		71.1	30.0	22	340	16.1
04/21/1971	1800	20.0		73.0	42.1	33	250	19.6
04/21/1971	1500	10.0		55.9	39.9	55	340	4.6
04/21/1971	1200	20.0		48.9	45.0	86	0	0.0
04/21/1971	0900	7.0		48.0	39.0	71	0	0.0
04/21/1971	0600	7.0		48.9	36.0	61	0	0.0
04/21/1971	0300	7.0		55.0	34.0	45	0	0.0
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/21/1971	0000	25.0		64.9	30.0	27	360	8.1
04/20/1971	2100	25.0		70.0	30.0	23	20	11.5
04/20/1971	1800	25.0		70.0	27.0	20	340	15.0
04/20/1971	1500	25.0		61.0	33.1	35	250	5.8
04/20/1971	1200	20.0		48.0	35.1	61	330	6.9
04/20/1971	0900	7.0		43.0	32.0	65	0	0.0
04/20/1971	0600	7.0		53.1	30.9	43	220	3.5
04/20/1971	0300	7.0		57.9	28.0	32	330	6.9
04/20/1971	0000	25.0		63.0	23.0	22	340	6.9
04/19/1971	2100	25.0		71.1	23.0	16	340	11.5
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/19/1971	1800	25.0		70.0	26.1	19	360	12.7
04/19/1971	1500	25.0		64.0	26.1	24	330	13.8							CLR
04/19/1971	1200	20.0		45.0	28.9	53	300	16.1							CLR
04/19/1971	0900	7.0		43.0	28.9	57	280	15.0							CLR
04/19/1971	0600	7.0		48.0	25.0	40	300	5.8							CLR
04/19/1971	0300	7.0		52.0	25.0	35	30	6.9							CLR
04/19/1971	0000	25.0		57.9	19.9	23	320	8.1							CLR
04/18/1971	2100	25.0		64.0	25.0	23	340	12.7							CLR
04/18/1971	1800	25.0		61.0	24.1	24	330	16.1							CLR
04/18/1971	1500	25.0		55.0	21.9	27	340	15.0							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/18/1971	1200	25.0		44.1	25.0	47	290	8.1
04/18/1971	0900	7.0		44.1	28.9	55	320	11.5
04/18/1971	0600	7.0		45.0	33.1	63	220	4.6
04/18/1971	0300	7.0		53.1	30.0	41	30	5.8
04/18/1971	0000	25.0		57.9	35.1	42	30	3.5
04/17/1971	2100	25.0		60.1	33.1	36	0	0.0
04/17/1971	1800	25.0		60.1	33.1	36	220	8.1
04/17/1971	1500	25.0		55.0	30.9	40	200	6.9
04/17/1971	1200	25.0		39.0	32.0	76	300	3.5
04/17/1971	0900	7.0		42.1	30.0	62	320	3.5							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/17/1971	0600	7.0		50.0	30.0	46	260	4.6
04/17/1971	0300	7.0		52.0	28.0	39	350	6.9
04/17/1971	0000	25.0		57.0	26.1	30	320	17.3
04/16/1971	2100	25.0		60.1	27.0	28	340	19.6
04/16/1971	1800	25.0		61.0	21.9	22	290	18.4
04/16/1971	1500	20.0		54.0	23.0	30	290	18.4							CLR
04/16/1971	1200	20.0		43.0	26.1	51	270	12.7							CLR
04/16/1971	0900	7.0		39.9	25.0	55	260	13.8
04/16/1971	0600	7.0		42.1	25.0	50	280	8.1
04/16/1971	0300	7.0		43.0	19.9	39	0	0.0
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/16/1971	0000	25.0		50.0	17.1	27	320	6.9
04/15/1971	2100	25.0		53.1	17.1	24	290	15.0
04/15/1971	1800	25.0		51.1	17.1	26	340	11.5
04/15/1971	1500	25.0		45.0	18.0	34	300	12.7							CLR
04/15/1971	1200	25.0		34.0	19.9	56	270	13.8
04/15/1971	0900	7.0		33.1	19.9	58	270	8.1							CLR
04/15/1971	0600	7.0		34.0	21.0	59	270	11.5							CLR
04/15/1971	0300	7.0		37.9	19.0	46	280	16.1
04/15/1971	0000	25.0		42.1	16.0	34	310	18.4
04/14/1971	2100	25.0		48.9	15.1	26	300	19.6
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/14/1971	1800	25.0		48.0	19.9	33	310	20.7
04/14/1971	1500	25.0		45.0	21.9	40	310	20.7
04/14/1971	1200	20.0		39.9	30.0	67	290	16.1
04/14/1971	0900	7.0		43.0	37.9	82	280	11.5
04/14/1971	0600	5.0		48.9	45.0	86	310	9.2						-SHRA FG
04/14/1971	0300	6.0		60.1	60.1	100	260	4.6						-SHRA FG
04/14/1971	0000	10.0		77.0	45.0	32	160	13.8
04/13/1971	2100	9.0		79.0	43.0	28	180	17.3
04/13/1971	1800	9.0		78.1	42.1	28	130	13.8
04/13/1971	1500	10.0		66.0	33.1	29	120	9.2
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/13/1971	1200	10.0		55.0	30.9	40	100	6.9
04/13/1971	0900	7.0		57.0	26.1	30	70	6.9
04/13/1971	0600	7.0		59.0	30.0	33	70	10.4
04/13/1971	0300	7.0		66.9	26.1	21	90	9.2
04/13/1971	0000	10.0		69.1	26.1	20	130	6.9
04/12/1971	2100	10.0		75.0	28.9	18	140	6.9
04/12/1971	1800	10.0		71.1	25.0	18	20	5.8							CLR
04/12/1971	1500	20.0		53.1	24.1	32	240	4.6
04/12/1971	1200	20.0		35.1	25.0	66	330	3.5							CLR
04/12/1971	0900	7.0		32.0	25.0	75	0	0.0							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/12/1971	0600	7.0		36.0	25.0	64	0	0.0							CLR
04/12/1971	0300	7.0		45.0	26.1	47	0	0.0
04/12/1971	0000	25.0		57.9	19.0	22	190	4.6							CLR
04/11/1971	2100	25.0		68.0	16.0	13	310	9.2							CLR
04/11/1971	1800	25.0		62.1	12.9	14	350	17.3							CLR
04/11/1971	1500	25.0		52.0	23.0	32	260	13.8							CLR
04/11/1971	1200	20.0		37.0	24.1	59	280	11.5
04/11/1971	0900	7.0		32.0	21.9	66	330	6.9							CLR
04/11/1971	0600	7.0		35.1	19.9	54	270	10.4							CLR
04/11/1971	0300	7.0		42.1	18.0	37	300	10.4							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/11/1971	0000	25.0		46.9	18.0	31	310	13.8							CLR
04/10/1971	2100	25.0		52.0	30.0	43	300	17.3							CLR
04/10/1971	1800	25.0		41.0	30.0	65	310	18.4
04/10/1971	1500	20.0		39.9	30.9	70	300	16.1
04/10/1971	1200	7.0		37.9	36.0	93	280	13.8						-SHRA
04/10/1971	0900	7.0		45.0	35.1	68	280	18.4
04/10/1971	0600	7.0		54.0	52.0	93	260	11.5
04/10/1971	0300	7.0		64.0	46.9	54	270	17.3						-SHRA
04/10/1971	0000	15.0		72.0	30.0	21	170	15.0
04/09/1971	2100	20.0		73.0	30.9	21	170	16.1
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/09/1971	1800	15.0		70.0	28.0	21	190	17.3
04/09/1971	1500	20.0		53.1	25.0	33	60	3.5
04/09/1971	1200	15.0		32.0	21.9	66	0	0.0							CLR
04/09/1971	0900	7.0		30.0	19.9	66	0	0.0							CLR
04/09/1971	0600	7.0		30.9	19.9	63	280	5.8							CLR
04/09/1971	0300	7.0		35.1	19.9	54	0	0.0
04/09/1971	0000	25.0		46.0	10.0	23	230	4.6
04/08/1971	2100	25.0		53.1	8.1	16	290	15.0
04/08/1971	1800	25.0		50.0	8.1	18	340	16.1							CLR
04/08/1971	1500	25.0		43.0	6.1	21	320	16.1							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/08/1971	1200	25.0		34.0	10.0	36	320	13.8							CLR
04/08/1971	0900	7.0		33.1	14.0	45	300	16.1							CLR
04/08/1971	0600	7.0		37.9	19.9	48	320	13.8
04/08/1971	0300	7.0		42.1	21.9	44	300	15.0
04/08/1971	0000	20.0		46.0	25.0	43	310	11.5
04/07/1971	2100	25.0		50.0	21.0	32	320	19.6
04/07/1971	1800	25.0		52.0	19.9	28	330	20.7							CLR
04/07/1971	1500	25.0		50.0	19.9	30	320	18.4							CLR
04/07/1971	1200	25.0		37.9	16.0	40	290	11.5
04/07/1971	0900	7.0		39.0	19.9	46	310	12.7
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/07/1971	0600	7.0		41.0	23.0	48	330	6.9
04/07/1971	0300	7.0		43.0	25.0	49	340	10.4
04/07/1971	0000	20.0		44.1	24.1	45	360	10.4
04/06/1971	2100	25.0		46.0	23.0	40	40	9.2
04/06/1971	1800	25.0		44.1	23.0	43	30	12.7
04/06/1971	1500	20.0		35.1	25.0	66	250	8.1
04/06/1971	1200	10.0		30.9	26.1	82	0	0.0
04/06/1971	0900	4.0		30.0	28.0	92	0	0.0						FG
04/06/1971	0600	4.0		30.9	30.0	96	0	0.0						FG
04/06/1971	0300	5.0		34.0	33.1	97	0	0.0						FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/06/1971	0000	5.0		35.1	32.0	89	0	0.0						FG
04/05/1971	2100	4.0		35.1	32.0	89	330	4.6						-SN FG
04/05/1971	1800	2.0		35.1	30.9	85	320	9.2						-SN
04/05/1971	1500	15.0		33.1	25.0	72	110	4.6						-SHSN
04/05/1971	1200	20.0		33.1	19.9	58	30	5.8
04/05/1971	0900	7.0		32.0	19.9	61	290	5.8
04/05/1971	0600	7.0		36.0	24.1	62	10	10.4
04/05/1971	0300	7.0		43.0	23.0	45	340	9.2
04/05/1971	0000	25.0		46.0	24.1	42	270	5.8
04/04/1971	2100	25.0		50.0	21.9	33	280	12.7
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/04/1971	1800	25.0		48.9	23.0	36	270	16.1
04/04/1971	1500	15.0		42.1	25.0	50	260	10.4
04/04/1971	1200	15.0		33.1	27.0	78	290	10.4							CLR
04/04/1971	0900	7.0		30.0	26.1	85	0	0.0
04/04/1971	0600	7.0		32.0	26.1	78	300	6.9							CLR
04/04/1971	0300	7.0		37.0	25.0	61	340	5.8							CLR
04/04/1971	0000	25.0		50.0	19.0	29	250	8.1							CLR
04/03/1971	2100	25.0		55.9	19.9	24	250	15.0
04/03/1971	1800	25.0		53.1	23.0	31	230	17.3
04/03/1971	1500	10.0		43.0	30.9	62	160	17.3
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/03/1971	1200	5.5		34.0	34.0	100	40	6.9						FG
04/03/1971	0900	0.3		34.0	34.0	100	0	0.0						FG
04/03/1971	0600	0.3		34.0	34.0	100	0	0.0						FG
04/03/1971	0300	7.0		39.0	39.0	100	350	5.8
04/03/1971	0000	7.0		41.0	39.9	96	100	4.6
04/02/1971	2100	6.0		44.1	41.0	89	260	6.9						-SHRA
04/02/1971	1800	25.0		46.9	42.1	83	260	13.8
04/02/1971	1500	10.0		57.0	39.9	53	170	13.8
04/02/1971	1200	10.0		53.1	36.0	52	120	11.5
04/02/1971	0900	7.0		51.1	36.0	56	90	12.7
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/02/1971	0600	7.0		51.1	34.0	52	90	12.7
04/02/1971	0300	7.0		53.1	32.0	45	130	4.6
04/02/1971	0000	10.0		55.9	30.0	37	60	8.1
04/01/1971	2100	10.0		57.9	28.0	32	160	19.6
04/01/1971	1800	15.0		57.0	25.0	29	170	15.0
04/01/1971	1500	15.0		48.9	21.0	33	100	15.0
04/01/1971	1200	20.0		33.1	23.0	66	110	11.5
04/01/1971	0900	7.0		32.0	23.0	69	100	6.9
04/01/1971	0600	7.0		30.9	23.0	72	0	0.0
04/01/1971	0300	7.0		34.0	21.9	61	0	0.0							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/01/1971	0000	25.0		44.1	17.1	33	20	5.8							CLR

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