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
01/31/1971	2100	10.0		10.9	-4.0	50	250	15.0
01/31/1971	1800	15.0		10.0	-5.1	49	270	11.5
01/31/1971	1500	20.0		8.1	-5.1	54	260	12.7
01/31/1971	1200	20.0		3.9	-4.0	69	320	5.8
01/31/1971	0900	15.0		6.1	-2.0	69	300	5.8							CLR
01/31/1971	0600	15.0		12.9	-2.0	50	280	12.7							CLR
01/31/1971	0300	15.0		19.0	6.1	56	220	8.1
01/31/1971	0000	15.0		23.0	12.9	65	270	13.8
01/30/1971	2100	6.0		27.0	15.1	60	240	16.1						-SN
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/30/1971	1800	25.0		28.9	10.9	46	250	19.6
01/30/1971	1500	25.0		28.0	10.9	48	270	18.4
01/30/1971	1200	15.0		32.0	14.0	47	260	26.5
01/30/1971	0900	3.0		35.1	35.1	100	270	15.0						-RA FG
01/30/1971	0600	0.5		30.0	25.0	81	160	17.3						-SN -BLSN
01/30/1971	0300	1.0		26.1	19.9	77	120	12.7						-SN
01/30/1971	0000	5.5		23.0	5.0	45	130	11.5						-SN
01/29/1971	2100	25.0		27.0	6.1	40	140	10.4
01/29/1971	1800	25.0		24.1	6.1	46	280	11.5
01/29/1971	1500	15.0		17.1	-2.0	42	290	4.6
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/29/1971	1200	10.0		9.0	-0.9	63	230	9.2
01/29/1971	0900	10.0		10.0	-2.0	57	260	16.1							CLR
01/29/1971	0600	10.0		10.9	1.9	66	270	9.2							CLR
01/29/1971	0300	20.0		12.0	1.0	61	240	16.1
01/29/1971	0000	20.0		14.0	-0.9	51	280	16.1
01/28/1971	2100	20.0		17.1	0.0	46	270	15.0
01/28/1971	1800	10.0		17.1	5.0	58	270	13.8
01/28/1971	1500	15.0		12.0	0.0	58	250	13.8
01/28/1971	1200	10.0		10.0	-2.9	55	270	15.0
01/28/1971	0900	10.0		8.1	-0.9	66	270	11.5
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/28/1971	0600	10.0		7.0	-6.0	54	260	11.5
01/28/1971	0300	15.0		6.1	-8.0	51	290	17.3
01/28/1971	0000	15.0		8.1	-9.9	43	290	20.7
01/27/1971	2100	10.5		12.0	3.0	66	290	20.7						-SHSN
01/27/1971	1800	15.0		16.0	1.0	51	310	29.9
01/27/1971	1500	6.0		17.1	1.0	49	300	34.5						-SHSN -BLSN
01/27/1971	1200	5.5		14.0	8.1	77	280	20.7						-SN -BLSN
01/27/1971	0900	7.0		16.0	3.0	56	280	19.6
01/27/1971	0600	5.0		18.0	1.9	49	280	28.8						-SHSN
01/27/1971	0300	10.0		19.9	7.0	57	280	33.4
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/27/1971	0000	3.0		21.0	17.1	84	280	19.6						-SHSN
01/26/1971	2100	15.0		27.0	17.1	66	250	26.5
01/26/1971	1800	15.0		37.0	21.0	52	250	20.7
01/26/1971	1500	5.5		37.0	33.1	85	160	12.7
01/26/1971	1200	3.0		37.9	34.0	86	170	13.8
01/26/1971	0900	4.0		39.0	33.1	79	120	11.5						DZ
01/26/1971	0600	4.0		37.9	33.1	82	60	11.5						DZ
01/26/1971	0300	5.0		39.0	32.0	76	150	19.6						DZ
01/26/1971	0000	7.0		36.0	30.9	82	60	9.2
01/25/1971	2100	7.0		36.0	30.9	82	0	0.0
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/25/1971	1800	5.0		36.0	30.0	79	60	6.9						DZ
01/25/1971	1500	3.0		32.0	28.0	85	70	8.1
01/25/1971	1200	5.0		32.0	27.0	81	0	0.0
01/25/1971	0900	5.0		30.9	28.9	92	0	0.0						FG
01/25/1971	0600	5.0		32.0	32.0	100	140	5.8						FG
01/25/1971	0300	3.0		32.0	28.0	85	40	8.1						-SN FG
01/25/1971	0000	0.8		32.0	28.0	85	50	11.5						-SN FG
01/24/1971	2100	7.0		35.1	18.0	49	70	10.4						-SN
01/24/1971	1800	20.0		33.1	15.1	47	60	10.4
01/24/1971	1500	20.0		21.0	12.9	70	80	3.5
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/24/1971	1200	20.0		16.0	10.9	80	0	0.0
01/24/1971	0900	15.0		15.1	9.0	76	0	0.0							CLR
01/24/1971	0600	15.0		18.0	10.0	71	0	0.0							CLR
01/24/1971	0300	15.0		27.0	12.0	53	0	0.0							CLR
01/24/1971	0000	20.0		30.9	10.0	41	280	6.9							CLR
01/23/1971	2100	25.0		36.0	10.9	35	280	23.0							CLR
01/23/1971	1800	25.0		37.0	12.9	37	280	20.7							CLR
01/23/1971	1500	20.0		41.0	28.9	62	280	17.3
01/23/1971	1200	3.0		35.1	32.0	89	240	9.2						-RA FG
01/23/1971	0900	5.5		34.0	28.9	82	20	8.1						-SN
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/23/1971	0600	1.0		34.0	21.0	59	140	13.8						-SN
01/23/1971	0300	10.0		33.1	21.0	61	40	9.2
01/23/1971	0000	15.0		37.9	19.9	48	160	8.1
01/22/1971	2100	25.0		39.9	21.9	48	210	8.1							CLR
01/22/1971	1800	25.0		39.0	21.0	48	280	11.5							CLR
01/22/1971	1500	25.0		34.0	18.0	51	280	16.1
01/22/1971	1200	15.0		34.0	19.9	56	260	13.8
01/22/1971	0900	10.0		37.9	21.9	52	280	17.3
01/22/1971	0600	10.0		39.0	25.0	57	280	13.8
01/22/1971	0300	10.0		37.9	28.0	67	270	17.3
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/22/1971	0000	10.0		36.0	26.1	67	240	13.8
01/21/1971	2100	10.0		32.0	17.1	54	170	15.0
01/21/1971	1800	20.0		30.0	16.0	55	130	15.0
01/21/1971	1500	7.0		23.0	15.1	71	90	11.5
01/21/1971	1200	10.5		18.0	10.0	71	0	0.0						-SN
01/21/1971	0900	15.0		14.0	8.1	77	0	0.0
01/21/1971	0600	15.0		15.1	10.9	83	270	5.8							CLR
01/21/1971	0300	15.0		15.1	8.1	73	290	6.9							CLR
01/21/1971	0000	25.0		23.0	6.1	48	300	11.5							CLR
01/20/1971	2100	25.0		27.0	8.1	44	290	17.3
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/20/1971	1800	25.0		25.0	6.1	44	310	16.1
01/20/1971	1500	25.0		18.0	6.1	59	310	15.0
01/20/1971	1200	10.0		15.1	3.0	58	290	16.1
01/20/1971	0900	10.0		12.9	1.0	58	300	13.8
01/20/1971	0600	10.0		12.9	12.0	96	310	10.4
01/20/1971	0300	25.0		15.1	5.0	64	300	13.8
01/20/1971	0000	25.0		16.0	0.0	48	310	18.4							CLR
01/19/1971	2100	25.0		18.0	3.0	51	290	13.8
01/19/1971	1800	25.0		15.1	0.0	50	280	11.5
01/19/1971	1500	20.0		8.1	-4.0	57	300	15.0							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/19/1971	1200	15.0		1.9	-5.1	72	300	11.5							CLR
01/19/1971	0900	10.0		3.0	-2.0	79	0	0.0							CLR
01/19/1971	0600	10.0		8.1	1.0	72	360	11.5							CLR
01/19/1971	0300	15.0		14.0	3.9	64	300	3.5
01/19/1971	0000	15.0		19.0	7.0	59	350	8.1
01/18/1971	2100	6.0		21.0	14.0	74	230	6.9						-SHSN
01/18/1971	1800	20.0		21.0	9.0	59	260	13.8
01/18/1971	1500	20.0		17.1	7.0	64	260	13.8
01/18/1971	1200	15.0		3.0	-2.0	79	360	4.6
01/18/1971	0900	15.0		7.0	3.0	83	0	0.0							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/18/1971	0600	15.0		10.0	3.9	76	0	0.0
01/18/1971	0300	15.0		12.0	6.1	77	340	6.9
01/18/1971	0000	25.0		15.1	6.1	67	0	0.0							CLR
01/17/1971	2100	25.0		23.0	7.0	50	290	5.8
01/17/1971	1800	25.0		21.9	5.0	47	290	9.2
01/17/1971	1500	15.0		15.1	6.1	67	0	0.0
01/17/1971	1200	15.0		9.0	3.9	79	0	0.0
01/17/1971	0900	8.0		10.9	7.0	84	20	5.8
01/17/1971	0600	8.0		12.0	8.1	84	0	0.0
01/17/1971	0300	10.0		17.1	8.1	67	50	4.6
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/17/1971	0000	25.0		18.0	5.0	56	30	4.6
01/16/1971	2100	25.0		23.0	5.0	45	310	13.8
01/16/1971	1800	25.0		21.9	1.9	41	320	15.0							CLR
01/16/1971	1500	25.0		16.0	0.0	48	300	15.0							CLR
01/16/1971	1200	25.0		12.0	-0.9	55	310	11.5
01/16/1971	0900	10.0		15.1	3.0	58	300	12.7
01/16/1971	0600	10.0		19.0	6.1	56	300	15.0
01/16/1971	0300	10.0		25.0	12.0	57	300	15.0
01/16/1971	0000	20.0		28.9	14.0	53	290	16.1
01/15/1971	2100	15.0		33.1	16.0	49	330	15.0						-SHSN
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/15/1971	1800	10.0		35.1	19.0	52	300	16.1
01/15/1971	1500	8.0		33.1	24.1	69	290	12.7
01/15/1971	1200	7.0		32.0	27.0	81	0	0.0
01/15/1971	0900	7.0		32.0	28.0	85	0	0.0
01/15/1971	0600	7.0		32.0	28.0	85	190	4.6
01/15/1971	0300	7.0		36.0	30.0	79	280	6.9
01/15/1971	0000	4.0		34.0	30.9	88	110	3.5						FG
01/14/1971	2100	4.0		34.0	30.9	88	140	4.6						FG
01/14/1971	1800	2.0		32.0	28.9	88	0	0.0						FG
01/14/1971	1500	3.0		32.0	28.0	85	100	11.5						-FZRA FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/14/1971	1200	10.5		30.0	25.0	81	100	10.4						-FZRA DZ
01/14/1971	0900	5.5		27.0	21.0	78	60	17.3
01/14/1971	0600	5.5		24.1	17.1	74	80	13.8
01/14/1971	0300	5.5		21.9	10.9	62	60	17.3						PL DZ
01/14/1971	0000	3.0		19.9	14.0	77	50	10.4						-FZRA
01/13/1971	2100	15.0		21.0	8.1	57	80	11.5
01/13/1971	1800	25.0		19.0	6.1	56	60	9.2
01/13/1971	1500	25.0		16.0	5.0	61	60	5.8
01/13/1971	1200	20.0		14.0	3.0	61	60	3.5
01/13/1971	0900	15.0		15.1	3.0	58	320	8.1
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/13/1971	0600	15.0		16.0	3.0	56	350	9.2
01/13/1971	0300	25.0		16.0	1.9	53	340	8.1							CLR
01/13/1971	0000	25.0		21.0	5.0	49	340	10.4
01/12/1971	2100	25.0		28.9	12.0	49	20	11.5							CLR
01/12/1971	1800	15.0		32.0	18.0	56	340	13.8
01/12/1971	1500	10.0		35.1	21.9	58	310	11.5
01/12/1971	1200	7.0		37.0	25.0	61	330	13.8
01/12/1971	0900	4.0		39.9	28.0	62	310	11.5						DZ
01/12/1971	0600	4.0		35.1	30.9	85	110	5.8						DZ
01/12/1971	0300	4.0		35.1	30.0	82	0	0.0						DZ
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/12/1971	0000	4.0		36.0	28.0	73	140	4.6						DZ
01/11/1971	2100	4.0		37.9	28.9	70	70	6.9						DZ
01/11/1971	1800	4.0		35.1	28.0	75	0	0.0						DZ
01/11/1971	1500	5.0		30.9	23.0	72	0	0.0						DZ
01/11/1971	1200	7.0		28.0	23.0	81	50	3.5
01/11/1971	0900	7.0		30.0	24.1	78	0	0.0
01/11/1971	0600	7.0		30.0	23.0	75	0	0.0
01/11/1971	0300	7.0		30.0	23.0	75	0	0.0
01/11/1971	0000	7.0		30.9	21.9	69	50	5.8
01/10/1971	2100	5.0		33.1	23.0	66	140	5.8						DZ
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/10/1971	1800	5.0		32.0	19.9	61	110	6.9						DZ
01/10/1971	1500	5.0		28.9	17.1	61	130	9.2						DZ
01/10/1971	1200	10.0		25.0	15.1	66	140	6.9
01/10/1971	0900	10.0		26.1	16.0	65	0	0.0
01/10/1971	0600	10.0		25.0	15.1	66	140	9.2
01/10/1971	0300	10.0		25.0	15.1	66	150	5.8
01/10/1971	0000	10.0		23.0	12.9	65	40	5.8
01/09/1971	2100	10.0		25.0	15.1	66	180	11.5
01/09/1971	1800	10.0		25.0	10.9	55	0	0.0
01/09/1971	1500	15.0		19.0	10.9	70	260	3.5
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/09/1971	1200	10.0		12.9	7.0	77	0	0.0
01/09/1971	0900	10.0		15.1	10.0	80	0	0.0
01/09/1971	0600	10.0		17.1	10.9	76	0	0.0
01/09/1971	0300	10.0		19.9	12.0	71	20	4.6
01/09/1971	0000	10.0		21.9	12.0	65	120	3.5
01/08/1971	2100	10.0		24.1	10.9	57	250	4.6
01/08/1971	1800	10.0		19.9	9.0	62	270	12.7
01/08/1971	1500	10.0		16.0	7.0	67	290	11.5
01/08/1971	1200	15.0		12.0	3.9	69	260	11.5
01/08/1971	0900	15.0		15.1	7.0	70	260	13.8
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/08/1971	0600	20.0		15.1	5.0	64	260	10.4							CLR
01/08/1971	0300	20.0		16.0	3.9	58	270	5.8							CLR
01/08/1971	0000	20.0		18.0	3.9	53	280	15.0
01/07/1971	2100	20.0		21.9	6.1	50	270	15.0
01/07/1971	1800	20.0		21.9	7.0	52	260	17.3
01/07/1971	1500	15.0		17.1	6.1	61	260	18.4
01/07/1971	1200	10.0		12.0	3.9	69	270	8.1
01/07/1971	0900	10.0		10.9	6.1	80	0	0.0							CLR
01/07/1971	0600	10.0		15.1	7.0	70	0	0.0							CLR
01/07/1971	0300	15.0		18.0	8.1	65	310	8.1							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/07/1971	0000	15.0		23.0	8.1	52	260	5.8							CLR
01/06/1971	2100	20.0		27.0	10.9	50	240	11.5							CLR
01/06/1971	1800	20.0		26.1	12.0	55	260	16.1
01/06/1971	1500	15.0		21.0	10.0	62	240	11.5
01/06/1971	1200	15.0		19.0	10.9	70	260	9.2
01/06/1971	0900	15.0		21.9	14.0	71	280	5.8							CLR
01/06/1971	0600	15.0		26.1	15.1	63	270	6.9
01/06/1971	0300	10.0		28.9	19.0	66	270	8.1
01/06/1971	0000	15.0		32.0	19.9	61	260	12.7
01/05/1971	2100	15.0		36.0	23.0	59	270	15.0
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/05/1971	1800	15.0		36.0	24.1	62	270	15.0
01/05/1971	1500	10.0		37.0	26.1	64	270	17.3
01/05/1971	1200	7.0		39.0	36.0	89	270	15.0
01/05/1971	0900	2.0		37.9	36.0	93	0	0.0						FG
01/05/1971	0600	4.0		39.0	37.0	93	60	9.2						-RA FG
01/05/1971	0300	4.0		41.0	37.0	86	30	8.1						FG
01/05/1971	0000	4.0		39.0	36.0	89	70	8.1						-RA FG
01/04/1971	2100	5.5		36.0	34.0	92	50	13.8						-RA FG
01/04/1971	1800	3.0		35.1	32.0	89	60	11.5						-RA FG
01/04/1971	1500	2.0		34.0	30.9	88	60	11.5						-RA FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/04/1971	1200	5.5		32.0	27.0	81	50	11.5
01/04/1971	0900	10.0		33.1	23.0	66	100	5.8
01/04/1971	0600	10.0		30.9	21.9	69	100	9.2
01/04/1971	0300	10.0		24.1	19.9	84	0	0.0
01/04/1971	0000	10.0		26.1	19.9	77	0	0.0
01/03/1971	2100	15.0		36.0	23.0	59	70	4.6							CLR
01/03/1971	1800	6.0		33.1	27.0	78	0	0.0						DZ	CLR
01/03/1971	1500	6.0		21.9	18.0	84	0	0.0						DZ	CLR
01/03/1971	1200	4.0		17.1	14.0	88	0	0.0						FG
01/03/1971	0900	4.0		16.0	14.0	92	0	0.0						FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/03/1971	0600	4.0		18.0	15.1	88	0	0.0						FG
01/03/1971	0300	7.0		21.9	19.0	88	0	0.0
01/03/1971	0000	7.0		28.0	19.9	71	0	0.0
01/02/1971	2100	7.0		30.0	19.9	66	80	5.8
01/02/1971	1800	7.0		21.9	15.1	75	0	0.0
01/02/1971	1500	9.0		12.0	8.1	84	0	0.0
01/02/1971	1200	10.0		6.1	3.0	87	0	0.0
01/02/1971	0900	10.0		6.1	5.0	95	0	0.0
01/02/1971	0600	10.0		12.0	10.0	92	0	0.0
01/02/1971	0300	20.0		12.0	9.0	87	220	4.6
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/02/1971	0000	20.0		26.1	12.0	55	300	12.7
01/01/1971	2100	15.0		33.1	17.1	51	320	15.0
01/01/1971	1800	10.0		28.0	23.0	81	240	9.2
01/01/1971	1500	1.0		26.1	23.0	88	280	11.5						-SN FG
01/01/1971	1200	0.8		25.0	21.9	88	270	10.4						-SN
01/01/1971	0900	5.0		27.0	19.9	75	0	0.0						-SN
01/01/1971	0600	8.0		30.0	16.0	55	0	0.0
01/01/1971	0300	7.0		28.0	15.1	58	0	0.0
01/01/1971	0000	7.0		28.9	15.1	56	350	5.8

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