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
05/31/1970	2100	15.0		79.0	64.9	62	180	9.2
05/31/1970	1800	15.0		77.0	64.0	64	140	13.8
05/31/1970	1500	15.0		69.1	57.9	68	180	8.1
05/31/1970	1200	15.0		60.1	54.0	80	120	8.1							CLR
05/31/1970	0900	10.0		55.0	52.0	89	0	0.0							CLR
05/31/1970	0600	10.0		59.0	52.0	78	60	11.5							CLR
05/31/1970	0300	10.0		63.0	48.0	58	140	9.2							CLR
05/31/1970	0000	15.0		70.0	46.0	42	60	4.6							CLR
05/30/1970	2100	15.0		72.0	44.1	37	160	11.5							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/30/1970	1800	15.0		69.1	44.1	41	170	15.0							CLR
05/30/1970	1500	15.0		64.0	46.0	52	210	10.4							CLR
05/30/1970	1200	15.0		55.9	45.0	67	360	3.5							CLR
05/30/1970	0900	10.0		53.1	46.0	77	160	4.6							CLR
05/30/1970	0600	8.0		61.0	46.9	60	70	6.9							CLR
05/30/1970	0300	8.0		62.1	54.0	75	120	5.8							CLR
05/30/1970	0000	15.0		71.1	48.0	44	180	8.1							CLR
05/29/1970	2100	15.0		73.9	48.9	41	140	18.4
05/29/1970	1800	15.0		72.0	50.0	46	130	10.4
05/29/1970	1500	15.0		66.0	48.9	54	170	5.8							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/29/1970	1200	15.0		54.0	48.0	80	0	0.0							CLR
05/29/1970	0900	15.0		46.9	46.9	100	0	0.0							CLR
05/29/1970	0600	15.0		51.1	48.0	89	0	0.0
05/29/1970	0300	15.0		57.9	48.9	72	0	0.0
05/29/1970	0000	15.0		66.9	48.0	51	140	4.6
05/28/1970	2100	15.0		70.0	44.1	39	130	13.8
05/28/1970	1800	15.0		66.0	44.1	45	200	9.2
05/28/1970	1500	15.0		59.0	45.0	60	220	4.6
05/28/1970	1200	10.0		48.9	46.0	90	260	6.9							CLR
05/28/1970	0900	10.0		43.0	41.0	93	0	0.0							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/28/1970	0600	10.0		45.0	43.0	93	0	0.0
05/28/1970	0300	10.0		53.1	46.9	80	320	4.6
05/28/1970	0000	15.0		57.9	45.0	62	320	12.7
05/27/1970	2100	15.0		60.1	44.1	55	310	12.7
05/27/1970	1800	15.0		60.1	43.0	53	320	11.5
05/27/1970	1500	15.0		57.9	39.9	51	290	9.2
05/27/1970	1200	15.0		55.9	41.0	57	300	16.1
05/27/1970	0900	10.0		53.1	50.0	89	250	11.5							CLR
05/27/1970	0600	10.0		55.0	48.9	80	290	4.6							CLR
05/27/1970	0300	15.0		62.1	54.0	75	140	5.8
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/27/1970	0000	15.0		72.0	50.0	46	250	6.9
05/26/1970	2100	15.0		77.0	55.0	47	250	13.8
05/26/1970	1800	7.0		73.0	64.0	74	260	9.2
05/26/1970	1500	5.5		68.0	66.0	93	240	3.5						-SHRA FG
05/26/1970	1200	1.0		66.0	66.0	100	120	5.8						FG
05/26/1970	0900	5.5		64.0	64.0	100	70	11.5						-SHRA FG
05/26/1970	0600	0.8		62.1	62.1	100	300	15.0						-SHRA FG
05/26/1970	0300	1.0		62.1	62.1	100	90	9.2						-SHRA FG
05/26/1970	0000	5.5		61.0	61.0	100	80	11.5						FG
05/25/1970	2100	5.5		62.1	62.1	100	70	13.8						-DZ FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/25/1970	1800	3.0		64.0	62.1	93	110	6.9						FG
05/25/1970	1500	3.0		63.0	61.0	93	120	5.8						FG
05/25/1970	1200	3.0		61.0	60.1	97	120	5.8						FG
05/25/1970	0900	1.0		60.1	59.0	96	60	6.9						-DZ FG
05/25/1970	0600	4.0		61.0	60.1	97	90	6.9						FG
05/25/1970	0300	5.0		61.0	61.0	100	70	13.8						FG
05/25/1970	0000	5.0		63.0	62.1	97	60	13.8						FG
05/24/1970	2100	4.0		64.9	64.0	97	90	13.8						-RA FG
05/24/1970	1800	9.0		68.0	64.0	87	90	9.2
05/24/1970	1500	6.0		63.0	62.1	97	140	4.6						FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/24/1970	1200	6.0		62.1	62.1	100	300	5.8						-RA FG
05/24/1970	0900	4.0		62.1	62.1	100	0	0.0						FG
05/24/1970	0600	4.0		62.1	62.1	100	330	4.6						FG
05/24/1970	0300	4.0		64.9	64.9	100	320	5.8						FG
05/24/1970	0000	7.0		71.1	66.0	84	350	10.4
05/23/1970	2100	10.0		75.9	66.0	72	190	5.8
05/23/1970	1800	10.0		75.0	64.0	69	120	3.5
05/23/1970	1500	9.0		73.0	64.9	76	290	8.1
05/23/1970	1200	6.0		66.9	66.0	97	260	3.5						FG
05/23/1970	0900	5.0		64.9	64.9	100	300	5.8						-SHRA FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/23/1970	0600	5.0		66.9	64.0	91	120	6.9						TSRA
05/23/1970	0300	7.0		69.1	64.0	84	0	0.0
05/23/1970	0000	7.0		81.0	60.1	49	290	12.7
05/22/1970	2100	8.0		87.1	54.0	32	280	12.7
05/22/1970	1800	7.0		82.9	64.0	53	0	0.0
05/22/1970	1500	5.0		72.0	64.0	76	0	0.0						DZ
05/22/1970	1200	4.0		60.1	59.0	96	0	0.0						FG
05/22/1970	0900	8.0		57.9	55.0	90	250	4.6							CLR
05/22/1970	0600	15.0		61.0	57.0	87	50	5.8							CLR
05/22/1970	0300	15.0		70.0	57.0	64	50	6.9
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/22/1970	0000	15.0		75.0	52.0	45	140	12.7
05/21/1970	2100	15.0		79.0	51.1	38	150	13.8
05/21/1970	1800	15.0		73.0	51.1	46	140	6.9
05/21/1970	1500	15.0		64.9	48.9	56	100	5.8
05/21/1970	1200	15.0		54.0	45.0	72	0	0.0
05/21/1970	0900	15.0		48.0	42.1	80	320	3.5							CLR
05/21/1970	0600	15.0		54.0	39.0	57	300	5.8							CLR
05/21/1970	0300	15.0		64.0	39.0	40	40	8.1							CLR
05/21/1970	0000	15.0		73.0	43.0	34	20	11.5							CLR
05/20/1970	2100	15.0		81.0	52.0	37	350	15.0							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/20/1970	1800	15.0		80.1	57.0	45	330	13.8							CLR
05/20/1970	1500	15.0		73.0	55.9	55	290	10.4							CLR
05/20/1970	1200	10.0		66.9	60.1	79	250	8.1
05/20/1970	0900	10.0		60.1	57.9	93	0	0.0							CLR
05/20/1970	0600	10.0		64.0	60.1	87	0	0.0
05/20/1970	0300	15.0		68.0	60.1	76	0	0.0							CLR
05/20/1970	0000	15.0		80.1	57.9	47	300	9.2							CLR
05/19/1970	2100	15.0		84.9	57.0	39	310	9.2
05/19/1970	1800	15.0		80.1	57.0	45	230	13.8							CLR
05/19/1970	1500	15.0		70.0	48.9	47	270	12.7							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/19/1970	1200	15.0		55.0	46.9	74	280	6.9
05/19/1970	0900	10.0		50.0	46.9	89	0	0.0
05/19/1970	0600	15.0		50.0	46.9	89	0	0.0
05/19/1970	0300	15.0		53.1	48.0	83	0	0.0
05/19/1970	0000	15.0		64.9	41.0	42	330	8.1
05/18/1970	2100	15.0		68.0	44.1	42	360	9.2
05/18/1970	1800	15.0		66.0	44.1	45	330	9.2
05/18/1970	1500	15.0		60.1	41.0	49	330	8.1
05/18/1970	1200	15.0		51.1	41.0	68	270	6.9
05/18/1970	0900	8.0		51.1	45.0	80	280	11.5
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/18/1970	0600	10.0		52.0	46.0	80	270	11.5
05/18/1970	0300	10.0		54.0	45.0	72	300	13.8						-SHRA
05/18/1970	0000	15.0		57.0	46.0	67	310	13.8
05/17/1970	2100	15.0		62.1	54.0	75	120	9.2
05/17/1970	1800	15.0		61.0	52.0	72	0	0.0
05/17/1970	1500	15.0		55.0	54.0	96	240	6.9
05/17/1970	1200	6.0		55.0	53.1	93	270	8.1						-RA FG
05/17/1970	0900	3.0		60.1	59.0	96	0	0.0						-RA FG
05/17/1970	0600	3.0		60.1	59.0	96	360	5.8						-SHRA FG
05/17/1970	0300	3.0		61.0	60.1	97	60	8.1						-SHRA FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/17/1970	0000	3.0		61.0	57.0	87	140	12.7						FG
05/16/1970	2100	5.0		59.0	55.0	87	160	13.8						-SHRA FG
05/16/1970	1800	6.0		59.0	54.0	83	80	13.8						DZ
05/16/1970	1500	8.0		57.9	52.0	81	70	10.4
05/16/1970	1200	8.0		55.0	50.0	83	50	13.8
05/16/1970	0900	7.0		55.9	52.0	87	160	9.2
05/16/1970	0600	7.0		57.9	50.0	75	70	10.4
05/16/1970	0300	8.0		61.0	51.1	70	20	13.8
05/16/1970	0000	10.0		61.0	54.0	78	120	8.1
05/15/1970	2100	10.0		62.1	52.0	70	120	11.5
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/15/1970	1800	10.0		60.1	52.0	75	100	12.7
05/15/1970	1500	6.0		57.0	52.0	83	60	18.4						-SHRA
05/15/1970	1200	7.0		57.0	55.0	93	80	17.3
05/15/1970	0900	3.0		59.0	57.0	93	100	17.3						-DZ FG
05/15/1970	0600	3.0		60.1	57.9	93	50	5.8						FG
05/15/1970	0300	3.0		59.0	57.9	96	90	5.8						-DZ FG
05/15/1970	0000	6.0		61.0	57.9	90	0	0.0						DZ
05/14/1970	2100	7.0		62.1	55.0	78	90	4.6
05/14/1970	1800	7.0		60.1	55.9	86	0	0.0
05/14/1970	1500	2.0		59.0	57.9	96	270	6.9						-RA FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/14/1970	1200	6.0		64.0	60.1	87	30	6.9						DZ
05/14/1970	0900	7.0		66.9	64.0	91	290	5.8
05/14/1970	0600	7.0		69.1	64.0	84	320	5.8
05/14/1970	0300	7.0		70.0	66.9	90	0	0.0
05/14/1970	0000	7.0		75.0	63.0	66	0	0.0
05/13/1970	2100	7.0		81.0	64.0	57	250	12.7
05/13/1970	1800	8.0		77.0	64.0	64	270	11.5
05/13/1970	1500	8.0		75.0	62.1	64	240	11.5
05/13/1970	1200	3.0		64.0	61.0	90	320	6.9						DZ
05/13/1970	0900	6.0		61.0	61.0	100	360	4.6						FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/13/1970	0600	8.0		63.0	61.0	93	0	0.0
05/13/1970	0300	8.0		64.9	63.0	93	0	0.0
05/13/1970	0000	9.0		71.1	63.0	76	0	0.0
05/12/1970	2100	10.0		73.9	61.0	64	160	8.1
05/12/1970	1800	15.0		79.0	59.0	51	320	8.1
05/12/1970	1500	5.0		69.1	61.0	75	0	0.0						DZ
05/12/1970	1200	6.0		64.0	61.0	90	0	0.0						DZ
05/12/1970	0900	5.0		61.0	60.1	97	280	4.6						DZ
05/12/1970	0600	5.0		63.0	61.0	93	0	0.0						DZ
05/12/1970	0300	7.0		66.0	61.0	84	0	0.0
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/12/1970	0000	10.0		78.1	57.0	48	0	0.0
05/11/1970	2100	15.0		81.0	54.0	39	250	9.2
05/11/1970	1800	15.0		80.1	57.0	45	270	6.9
05/11/1970	1500	10.0		73.9	62.1	67	290	13.8
05/11/1970	1200	0.5		60.1	60.1	100	0	0.0						FG
05/11/1970	0900	2.0		59.0	59.0	100	330	4.6						FG	CLR
05/11/1970	0600	8.0		64.0	64.0	100	0	0.0
05/11/1970	0300	10.0		70.0	60.1	71	310	8.1
05/11/1970	0000	10.0		73.9	61.0	64	200	3.5
05/10/1970	2100	10.0		82.0	52.0	35	250	15.0
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/10/1970	1800	10.0		84.0	55.0	37	250	11.5
05/10/1970	1500	6.0		75.9	57.9	54	0	0.0						DZ
05/10/1970	1200	5.0		60.1	55.0	83	0	0.0						DZ	CLR
05/10/1970	0900	7.0		55.9	55.0	97	280	3.5
05/10/1970	0600	7.0		59.0	55.9	90	0	0.0
05/10/1970	0300	8.0		64.0	57.0	78	300	4.6
05/10/1970	0000	10.0		77.0	53.1	44	220	11.5
05/09/1970	2100	10.0		84.0	53.1	35	250	13.8
05/09/1970	1800	10.0		84.0	55.0	37	270	15.0
05/09/1970	1500	7.0		78.1	57.0	48	250	12.7
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/09/1970	1200	6.0		55.9	52.0	87	0	0.0						DZ	CLR
05/09/1970	0900	7.0		53.1	52.0	96	0	0.0							CLR
05/09/1970	0600	7.0		55.0	54.0	96	0	0.0
05/09/1970	0300	10.0		63.0	54.0	73	20	4.6
05/09/1970	0000	10.0		75.0	48.9	40	260	10.4
05/08/1970	2100	10.0		73.0	55.0	53	70	6.9
05/08/1970	1800	10.0		64.9	46.9	52	80	9.2
05/08/1970	1500	10.0		52.0	42.1	69	70	8.1
05/08/1970	1200	10.0		41.0	37.0	86	80	5.8
05/08/1970	0900	10.0		42.1	35.1	76	0	0.0						-SHRA
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/08/1970	0600	15.0		39.0	30.9	72	0	0.0
05/08/1970	0300	15.0		43.0	32.0	65	0	0.0
05/08/1970	0000	15.0		54.0	21.9	28	300	5.8
05/07/1970	2100	15.0		57.9	19.9	23	280	15.0
05/07/1970	1800	15.0		57.0	19.0	23	320	15.0
05/07/1970	1500	15.0		50.0	17.1	27	360	11.5							CLR
05/07/1970	1200	15.0		39.9	23.0	50	260	12.7							CLR
05/07/1970	0900	15.0		35.1	23.0	61	270	11.5							CLR
05/07/1970	0600	10.0		37.9	19.9	48	260	9.2							CLR
05/07/1970	0300	10.0		39.9	19.0	43	280	11.5							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/07/1970	0000	15.0		46.0	19.0	34	320	13.8
05/06/1970	2100	15.0		48.9	24.1	37	310	17.3
05/06/1970	1800	15.0		46.9	26.1	44	300	18.4
05/06/1970	1500	15.0		46.9	25.0	42	310	17.3
05/06/1970	1200	15.0		45.0	28.0	51	270	16.1
05/06/1970	0900	10.0		42.1	28.0	57	300	13.8
05/06/1970	0600	10.0		46.0	32.0	58	300	17.3
05/06/1970	0300	10.0		52.0	41.0	66	290	15.0
05/06/1970	0000	15.0		62.1	42.1	48	290	17.3						-SHRA
05/05/1970	2100	15.0		71.1	37.0	29	260	16.1
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/05/1970	1800	15.0		68.0	39.9	36	260	19.6
05/05/1970	1500	9.0		62.1	52.0	70	220	8.1
05/05/1970	1200	5.0		51.1	48.0	89	320	4.6						DZ	CLR
05/05/1970	0900	10.0		48.9	46.9	93	0	0.0
05/05/1970	0600	10.0		52.0	46.9	83	350	4.6
05/05/1970	0300	10.0		55.9	44.1	64	0	0.0
05/05/1970	0000	10.0		59.0	44.1	58	340	4.6
05/04/1970	2100	10.0		63.0	43.0	48	160	12.7
05/04/1970	1800	10.0		64.0	41.0	43	160	10.4
05/04/1970	1500	10.0		57.0	44.1	62	0	0.0
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/04/1970	1200	10.0		46.9	42.1	83	290	3.5
05/04/1970	0900	10.0		46.9	39.9	76	250	5.8
05/04/1970	0600	10.0		48.9	41.0	74	0	0.0
05/04/1970	0300	15.0		54.0	39.0	57	60	8.1
05/04/1970	0000	15.0		57.0	39.9	53	60	9.2
05/03/1970	2100	15.0		61.0	36.0	39	30	5.8
05/03/1970	1800	15.0		59.0	37.0	44	320	6.9
05/03/1970	1500	10.0		55.0	36.0	49	270	9.2
05/03/1970	1200	10.0		48.0	44.1	86	260	10.4
05/03/1970	0900	7.0		48.0	46.9	96	240	4.6				0.04		-RA
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/03/1970	0600	7.0		52.0	50.0	93	320	6.9				0.02		-SHRA
05/03/1970	0300	10.0		55.0	53.1	93	270	4.6				0.02		-SHRA
05/03/1970	0000	15.0		59.0	53.1	81	300	8.1
05/02/1970	2100	10.0		63.0	55.9	78	330	12.7						-SHRA
05/02/1970	1800	6.0		69.1	60.1	73	20	8.1						DZ
05/02/1970	1500	5.0		68.0	59.0	73	160	11.5						DZ
05/02/1970	1200	6.0		64.0	57.9	81	80	16.1						DZ
05/02/1970	0900	5.0		61.0	60.1	97	50	5.8						FG
05/02/1970	0600	7.0		64.0	60.1	87	40	11.5
05/02/1970	0300	10.0		72.0	60.1	66	160	13.8
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/02/1970	0000	10.0		75.9	55.0	48	170	25.3
05/01/1970	2100	10.0		82.0	61.0	49	140	18.4
05/01/1970	1800	5.0		75.0	63.0	66	130	16.1						DZ
05/01/1970	1500	3.0		64.9	62.1	90	70	9.2						DZ
05/01/1970	1200	10.5		60.1	55.9	86	120	13.8						DZ
05/01/1970	0900	3.0		61.0	57.9	90	120	13.8						DZ
05/01/1970	0600	3.0		63.0	59.0	87	130	9.2						DZ
05/01/1970	0300	4.0		66.9	60.1	79	60	11.5						DZ
05/01/1970	0000	4.0		71.1	61.0	71	60	9.2						DZ

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