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
04/30/1970	2100	6.0		75.0	59.0	58	160	16.1						-SHRA DZ
04/30/1970	1800	7.0		77.0	55.9	48	130	13.8
04/30/1970	1500	7.0		73.0	54.0	51	120	11.5
04/30/1970	1200	8.0		66.0	52.0	61	60	11.5
04/30/1970	0900	10.0		64.9	57.9	78	90	6.9
04/30/1970	0600	10.0		68.0	62.1	81	160	5.8
04/30/1970	0300	10.0		70.0	61.0	73	50	6.9
04/30/1970	0000	15.0		75.9	60.1	58	160	8.1
04/29/1970	2100	15.0		81.0	63.0	54	130	4.6
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/29/1970	1800	10.0		77.0	60.1	56	170	9.2
04/29/1970	1500	10.0		70.0	61.0	73	250	5.8
04/29/1970	1200	5.0		59.0	57.9	96	0	0.0						FG
04/29/1970	0900	4.0		55.0	55.0	100	280	6.9						FG
04/29/1970	0600	8.0		59.0	57.0	93	270	3.5
04/29/1970	0300	10.0		64.0	57.0	78	100	4.6
04/29/1970	0000	10.0		72.0	54.0	53	40	6.9
04/28/1970	2100	10.0		75.9	57.9	54	180	9.2
04/28/1970	1800	10.0		73.0	57.9	59	200	4.6
04/28/1970	1500	10.0		66.0	60.1	81	90	5.8
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/28/1970	1200	10.5		55.9	55.0	97	0	0.0						FG
04/28/1970	0900	8.0		54.0	53.1	97	0	0.0
04/28/1970	0600	10.0		57.0	54.0	90	350	4.6
04/28/1970	0300	10.0		59.0	55.0	87	330	3.5
04/28/1970	0000	15.0		66.9	52.0	59	50	5.8
04/27/1970	2100	15.0		71.1	54.0	55	180	6.9
04/27/1970	1800	15.0		64.9	53.1	65	50	8.1							CLR
04/27/1970	1500	7.0		57.9	55.0	90	110	9.2
04/27/1970	1200	5.0		53.1	53.1	100	0	0.0						FG
04/27/1970	0900	10.0		51.1	50.0	96	0	0.0
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/27/1970	0600	10.0		57.0	55.0	93	340	4.6
04/27/1970	0300	15.0		62.1	54.0	75	180	11.5							CLR
04/27/1970	0000	15.0		66.0	51.1	59	180	13.8							CLR
04/26/1970	2100	15.0		73.9	48.0	40	170	19.6
04/26/1970	1800	15.0		73.0	39.9	30	120	5.8
04/26/1970	1500	10.0		64.9	48.9	56	120	4.6							CLR
04/26/1970	1200	10.0		46.0	45.0	96	310	4.6
04/26/1970	0900	10.0		45.0	44.1	97	300	5.8
04/26/1970	0600	10.0		46.9	45.0	93	350	5.8
04/26/1970	0300	15.0		53.1	45.0	74	0	0.0
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/26/1970	0000	15.0		64.0	41.0	43	190	5.8
04/25/1970	2100	15.0		68.0	37.9	33	270	12.7
04/25/1970	1800	15.0		64.9	45.0	48	250	9.2
04/25/1970	1500	10.0		57.9	48.0	70	230	8.1							CLR
04/25/1970	1200	10.0		45.0	44.1	97	20	4.6							CLR
04/25/1970	0900	10.0		45.0	44.1	97	290	10.4
04/25/1970	0600	15.0		42.1	41.0	96	0	0.0
04/25/1970	0300	15.0		48.9	46.0	90	290	15.0
04/25/1970	0000	15.0		57.9	55.9	93	300	15.0				0.01		-SHRA
04/24/1970	2100	4.0		57.0	57.0	100	50	11.5						FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/24/1970	1800	5.0		54.0	54.0	100	170	16.1						-RA FG
04/24/1970	1500	2.0		53.1	52.0	96	170	16.1				0.11		-RA FG
04/24/1970	1200	2.0		50.0	50.0	100	70	13.8				0.08		-RA FG
04/24/1970	0900	1.0		52.0	52.0	100	80	8.1						FG
04/24/1970	0600	1.0		52.0	52.0	100	60	9.2						FG
04/24/1970	0300	2.0		53.1	53.1	100	100	4.6						FG
04/24/1970	0000	4.0		55.0	54.0	96	140	12.7						FG
04/23/1970	2100	5.0		54.0	53.1	97	130	11.5						FG
04/23/1970	1800	5.0		53.1	50.0	89	80	13.8						FG
04/23/1970	1500	6.0		50.0	46.9	89	50	13.8						-RA FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/23/1970	1200	7.0		48.9	41.0	74	50	12.7				0.04		-TSRA
04/23/1970	0900	15.0		53.1	35.1	50	70	20.7
04/23/1970	0600	15.0		53.1	39.9	61	60	9.2
04/23/1970	0300	15.0		57.0	46.0	67	0	0.0
04/23/1970	0000	15.0		63.0	42.1	46	110	3.5
04/22/1970	2100	15.0		68.0	34.0	28	300	13.8							CLR
04/22/1970	1800	15.0		64.0	34.0	33	300	15.0
04/22/1970	1500	15.0		55.9	34.0	43	310	11.5
04/22/1970	1200	15.0		52.0	35.1	52	300	9.2
04/22/1970	0900	10.0		48.9	34.0	56	280	9.2
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/22/1970	0600	10.0		50.0	39.0	66	300	8.1
04/22/1970	0300	10.0		55.0	39.9	57	270	9.2
04/22/1970	0000	15.0		57.0	37.0	47	290	13.8
04/21/1970	2100	4.0		57.9	54.0	87	100	8.1						DZ
04/21/1970	1800	3.0		52.0	51.1	97	100	11.5						FG
04/21/1970	1500	2.0		48.0	48.0	100	70	5.8						FG
04/21/1970	1200	5.5		46.0	46.0	100	60	11.5				0.01		-RA FG
04/21/1970	0900	10.5		46.0	46.0	100	100	8.1						FG
04/21/1970	0600	5.0		46.0	46.0	100	90	9.2						FG
04/21/1970	0300	7.0		46.9	46.0	97	50	8.1
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/21/1970	0000	7.0		48.0	46.0	93	80	9.2
04/20/1970	2100	10.0		48.0	46.0	93	120	11.5
04/20/1970	1800	15.0		46.0	43.0	89	110	9.2
04/20/1970	1500	10.0		44.1	42.1	93	110	13.8
04/20/1970	1200	10.5		44.1	42.1	93	120	15.0				0.15		RA FG
04/20/1970	0900	8.0		43.0	39.9	89	120	16.1				0.05		-RA
04/20/1970	0600	8.0		44.1	42.1	93	50	13.8				0.06		-SHRA
04/20/1970	0300	10.0		45.0	39.9	82	70	13.8				0.01		-SHRA
04/20/1970	0000	10.0		44.1	36.0	73	50	5.8						-RA
04/19/1970	2100	15.0		48.0	30.9	51	140	6.9						-SHRA
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/19/1970	1800	15.0		50.0	25.0	37	0	0.0
04/19/1970	1500	15.0		46.9	26.1	44	0	0.0
04/19/1970	1200	15.0		39.9	36.0	86	300	4.6
04/19/1970	0900	10.0		35.1	33.1	92	290	9.2
04/19/1970	0600	15.0		37.9	35.1	89	340	5.8
04/19/1970	0300	15.0		44.1	32.0	62	330	4.6
04/19/1970	0000	15.0		50.0	34.0	54	360	12.7
04/18/1970	2100	15.0		57.9	34.0	40	360	16.1
04/18/1970	1800	15.0		55.0	36.0	49	350	15.0
04/18/1970	1500	15.0		54.0	35.1	49	320	13.8
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/18/1970	1200	15.0		46.9	37.0	68	290	15.0
04/18/1970	0900	15.0		46.9	39.9	76	330	8.1
04/18/1970	0600	15.0		53.1	48.0	83	260	5.8
04/18/1970	0300	10.0		57.0	53.1	87	20	5.8
04/18/1970	0000	15.0		63.0	48.9	60	160	13.8
04/17/1970	2100	10.0		70.0	48.0	46	170	17.3
04/17/1970	1800	9.0		66.0	48.9	54	140	15.0
04/17/1970	1500	9.0		60.1	46.9	62	30	4.6
04/17/1970	1200	8.0		53.1	46.0	77	90	3.5
04/17/1970	0900	10.0		54.0	42.1	64	80	8.1
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/17/1970	0600	10.0		57.0	39.9	53	40	8.1
04/17/1970	0300	15.0		61.0	41.0	48	160	15.0
04/17/1970	0000	15.0		63.0	39.0	41	180	17.3
04/16/1970	2100	15.0		66.9	39.9	37	180	17.3
04/16/1970	1800	15.0		64.9	37.9	37	150	5.8
04/16/1970	1500	15.0		55.0	36.0	49	60	4.6							CLR
04/16/1970	1200	15.0		41.0	36.0	82	320	4.6							CLR
04/16/1970	0900	10.0		39.0	35.1	86	340	4.6							CLR
04/16/1970	0600	15.0		46.0	36.0	68	0	0.0							CLR
04/16/1970	0300	15.0		53.1	37.0	54	350	5.8							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/16/1970	0000	15.0		61.0	36.0	39	360	10.4							CLR
04/15/1970	2100	15.0		68.0	35.1	30	20	11.5							CLR
04/15/1970	1800	15.0		64.0	30.9	29	360	13.8							CLR
04/15/1970	1500	15.0		60.1	34.0	37	20	18.4
04/15/1970	1200	15.0		46.0	43.0	89	260	6.9
04/15/1970	0900	7.0		44.1	44.1	100	250	3.5
04/15/1970	0600	7.0		44.1	44.1	100	0	0.0
04/15/1970	0300	7.0		45.0	43.0	93	280	6.9				0.01		-RA
04/15/1970	0000	8.0		45.0	43.0	93	250	4.6				0.02		-RA
04/14/1970	2100	15.0		50.0	39.9	68	40	8.1						-SHRA
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/14/1970	1800	15.0		51.1	30.9	46	80	11.5
04/14/1970	1500	15.0		51.1	37.9	61	70	11.5
04/14/1970	1200	10.0		46.9	39.9	76	70	8.1
04/14/1970	0900	8.0		45.0	41.0	86	90	9.2
04/14/1970	0600	10.0		46.0	42.1	86	90	16.1						-SHRA
04/14/1970	0300	10.0		52.0	34.0	50	170	16.1						-RA
04/14/1970	0000	15.0		55.9	30.0	37	200	8.1
04/13/1970	2100	15.0		57.9	28.9	33	130	11.5
04/13/1970	1800	15.0		57.9	32.0	37	150	6.9							CLR
04/13/1970	1500	15.0		48.9	30.9	50	50	4.6							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/13/1970	1200	15.0		34.0	30.0	85	290	3.5
04/13/1970	0900	15.0		30.0	27.0	88	0	0.0							CLR
04/13/1970	0600	15.0		35.1	30.0	82	0	0.0							CLR
04/13/1970	0300	15.0		39.9	32.0	73	0	0.0							CLR
04/13/1970	0000	15.0		50.0	28.0	42	40	9.2							CLR
04/12/1970	2100	15.0		57.0	24.1	28	320	8.1							CLR
04/12/1970	1800	15.0		53.1	27.0	36	270	6.9							CLR
04/12/1970	1500	15.0		45.0	28.9	53	220	6.9							CLR
04/12/1970	1200	15.0		32.0	28.0	85	310	4.6
04/12/1970	0900	15.0		28.9	26.1	89	290	4.6							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/12/1970	0600	15.0		33.1	27.0	78	280	5.8							CLR
04/12/1970	0300	15.0		39.0	26.1	59	260	6.9							CLR
04/12/1970	0000	15.0		45.0	27.0	49	350	6.9							CLR
04/11/1970	2100	15.0		50.0	25.0	37	290	10.4							CLR
04/11/1970	1800	15.0		46.0	24.1	42	340	9.2							CLR
04/11/1970	1500	15.0		36.0	19.9	52	330	16.1							CLR
04/11/1970	1200	15.0		30.9	17.1	56	320	13.8
04/11/1970	0900	15.0		32.0	19.9	61	320	17.3
04/11/1970	0600	15.0		30.9	23.0	72	270	5.8
04/11/1970	0300	15.0		33.1	19.9	58	290	11.5
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/11/1970	0000	15.0		37.9	19.9	48	290	17.3
04/10/1970	2100	15.0		46.0	25.0	43	280	20.7
04/10/1970	1800	15.0		46.9	27.0	46	280	19.6
04/10/1970	1500	15.0		46.9	30.9	54	310	17.3
04/10/1970	1200	15.0		37.0	35.1	93	360	4.6
04/10/1970	0900	15.0		35.1	32.0	89	0	0.0							CLR
04/10/1970	0600	15.0		44.1	33.1	65	40	5.8							CLR
04/10/1970	0300	15.0		52.0	25.0	35	310	11.5							CLR
04/10/1970	0000	15.0		60.1	21.9	23	280	15.0							CLR
04/09/1970	2100	15.0		66.0	26.1	22	260	27.6
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/09/1970	1800	10.0		64.9	50.0	58	260	16.1
04/09/1970	1500	10.0		54.0	39.0	57	120	3.5
04/09/1970	1200	9.0		44.1	41.0	89	0	0.0
04/09/1970	0900	7.0		43.0	39.0	86	0	0.0
04/09/1970	0600	10.0		44.1	37.0	76	0	0.0
04/09/1970	0300	10.0		48.9	35.1	59	0	0.0
04/09/1970	0000	15.0		63.0	26.1	25	220	11.5
04/08/1970	2100	15.0		66.9	26.1	21	220	19.6
04/08/1970	1800	9.0		61.0	33.1	35	250	8.1							CLR
04/08/1970	1500	4.0		46.9	37.0	68	160	4.6						FU	CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/08/1970	1200	4.0		33.1	32.0	96	0	0.0
04/08/1970	0900	7.0		30.0	30.0	100	0	0.0							CLR
04/08/1970	0600	7.0		37.9	35.1	89	300	8.1							CLR
04/08/1970	0300	10.0		37.0	34.0	89	270	8.1							CLR
04/08/1970	0000	10.0		46.9	33.1	58	320	9.2							CLR
04/07/1970	2100	15.0		50.0	34.0	54	300	13.8
04/07/1970	1800	15.0		53.1	37.0	54	320	16.1
04/07/1970	1500	10.0		48.0	37.9	68	260	8.1
04/07/1970	1200	7.0		41.0	37.9	89	260	8.1
04/07/1970	0900	3.0		37.9	37.9	100	360	3.5						FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/07/1970	0600	4.0		39.0	39.0	100	0	0.0						FG
04/07/1970	0300	7.0		39.0	39.0	100	60	9.2						-SHRA
04/07/1970	0000	6.0		39.0	37.9	96	110	9.2						FG
04/06/1970	2100	5.0		41.0	39.0	93	120	6.9				0.01		FG
04/06/1970	1800	3.0		37.9	34.0	86	140	5.8				0.01
04/06/1970	1500	15.0		41.0	28.9	62	170	11.5
04/06/1970	1200	15.0		34.0	25.0	69	50	15.0
04/06/1970	0900	10.0		32.0	24.1	72	60	9.2							CLR
04/06/1970	0600	10.0		28.9	25.0	85	360	5.8							CLR
04/06/1970	0300	15.0		32.0	24.1	72	10	5.8							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/06/1970	0000	15.0		44.1	16.0	32	150	3.5							CLR
04/05/1970	2100	15.0		48.0	19.0	31	350	6.9							CLR
04/05/1970	1800	15.0		46.9	23.0	39	260	12.7
04/05/1970	1500	15.0		42.1	25.0	50	340	13.8
04/05/1970	1200	15.0		32.0	28.9	88	270	12.7							CLR
04/05/1970	0900	10.0		30.0	28.0	92	260	9.2							CLR
04/05/1970	0600	10.0		30.9	30.0	96	300	9.2
04/05/1970	0300	10.0		35.1	33.1	92	270	10.4
04/05/1970	0000	15.0		37.9	35.1	89	260	6.9
04/04/1970	2100	15.0		46.0	28.9	51	260	11.5
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/04/1970	1800	15.0		48.0	28.0	46	230	15.0
04/04/1970	1500	15.0		46.0	28.0	49	300	15.0
04/04/1970	1200	10.0		39.9	33.1	76	250	11.5
04/04/1970	0900	10.0		35.1	32.0	89	300	9.2							CLR
04/04/1970	0600	10.0		36.0	32.0	85	280	9.2
04/04/1970	0300	15.0		37.9	30.9	76	290	6.9
04/04/1970	0000	15.0		44.1	28.0	53	300	13.8
04/03/1970	2100	15.0		48.0	26.1	42	280	25.3
04/03/1970	1800	15.0		48.0	26.1	42	270	20.7
04/03/1970	1500	15.0		44.1	26.1	49	270	16.1
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/03/1970	1200	15.0		37.0	26.1	64	280	18.4
04/03/1970	0900	8.0		37.0	27.0	67	280	20.7						-SHSN
04/03/1970	0600	10.0		37.9	28.9	70	270	23.0
04/03/1970	0300	15.0		39.9	28.9	65	270	21.9						-SHSN
04/03/1970	0000	10.0		39.9	30.0	67	260	31.1						-SHRA
04/02/1970	2100	15.0		50.0	46.9	89	260	13.8				0.04
04/02/1970	1800	4.0		46.9	46.9	100	60	6.9				0.08		-RA FG
04/02/1970	1500	4.0		44.1	44.1	100	110	13.8				0.10		-RA FG
04/02/1970	1200	6.0		42.1	41.0	96	110	18.4				0.06		-RA FG
04/02/1970	0900	4.0		39.0	39.0	100	120	11.5				0.11		-RA FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/02/1970	0600	4.0		39.0	37.0	93	100	11.5				0.22
04/02/1970	0300	5.0		37.0	35.1	93	80	15.0				0.03
04/02/1970	0000	8.0		39.0	30.0	70	70	13.8
04/01/1970	2100	10.0		39.0	28.9	67	70	5.8
04/01/1970	1800	10.0		39.9	26.1	57	90	6.9
04/01/1970	1500	7.0		34.0	30.0	85	0	0.0
04/01/1970	1200	7.0		30.9	28.9	92	0	0.0
04/01/1970	0900	6.0		30.9	30.0	96	0	0.0						FG	CLR
04/01/1970	0600	6.0		28.9	28.0	96	0	0.0						FG	CLR
04/01/1970	0300	7.0		30.9	30.0	96	0	0.0							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
04/01/1970	0000	7.0		37.0	33.1	85	80	8.1							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