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
01/01/1970	0000	15.0		35.1	28.0	75	260	12.7
01/01/1970	0000	15.0		37.0	25.0	61	290	12.7
01/01/1970	0000	15.0		30.9	27.0	85	280	12.7
01/01/1970	0000	10.0		30.0	28.0	92	280	3.5
01/01/1970	0000	8.0		30.0	30.0	100	300	5.8
01/01/1970	0000	8.0		30.0	30.0	100	280	5.8
01/01/1970	0000	8.0		32.0	30.9	96	30	5.8
01/01/1970	0000	10.0		32.0	30.9	96	50	5.8
01/01/1970	0000	5.0		33.1	30.9	92	130	6.9						-SHSN
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	4.0		34.0	30.9	88	140	9.2						-SN
01/01/1970	0000	5.5		30.9	30.9	100	100	11.5						-SN
01/01/1970	0000	15.0		32.0	27.0	81	190	8.1
01/01/1970	0000	8.0		32.0	28.0	85	220	9.2
01/01/1970	0000	6.0		33.1	30.0	88	240	20.7				0.01		-SN
01/01/1970	0000	4.0		37.0	37.0	100	270	16.1				0.03		-RA FG
01/01/1970	0000	10.5		44.1	44.1	100	140	4.6				0.12		-RA FG
01/01/1970	0000	4.0		45.0	45.0	100	270	8.1				0.19		-RA FG
01/01/1970	0000	2.0		53.1	53.1	100	240	4.6				0.40		RA FG
01/01/1970	0000	2.0		52.0	52.0	100	100	13.8				0.19		RA FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	3.0		50.0	50.0	100	90	17.3				0.25		RA FG
01/01/1970	0000	5.0		51.1	48.9	92	100	15.0						-SHRA
01/01/1970	0000	7.0		48.9	45.0	86	110	9.2						-SHRA
01/01/1970	0000	8.0		50.0	43.0	77	90	11.5
01/01/1970	0000	10.0		50.0	42.1	74	100	13.8
01/01/1970	0000	10.0		48.0	43.0	83	100	13.8
01/01/1970	0000	5.0		41.0	41.0	100	100	4.6						-SHRA FG
01/01/1970	0000	10.5		32.0	32.0	100	140	6.9						-RA FG
01/01/1970	0000	0.3		32.0	32.0	100	350	3.5						SG FG
01/01/1970	0000	0.3		30.0	30.0	100	280	5.8						FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	7.0		30.9	30.9	100	50	3.5							CLR
01/01/1970	0000	7.0		32.0	32.0	100	300	5.8							CLR
01/01/1970	0000	10.0		39.9	37.0	89	0	0.0							CLR
01/01/1970	0000	15.0		50.0	39.0	66	230	10.4							CLR
01/01/1970	0000	15.0		51.1	39.0	63	280	9.2
01/01/1970	0000	15.0		48.0	37.9	68	280	8.1
01/01/1970	0000	10.0		43.0	41.0	93	270	11.5
01/01/1970	0000	2.0		48.0	48.0	100	310	4.6						FG
01/01/1970	0000	2.0		48.0	48.0	100	0	0.0				0.01		FG
01/01/1970	0000	5.5		48.9	48.9	100	0	0.0						FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	4.0		50.0	50.0	100	150	3.5						FG
01/01/1970	0000	5.0		54.0	53.1	97	340	3.5				0.01		-RA FG
01/01/1970	0000	7.0		57.9	46.9	67	180	5.8
01/01/1970	0000	6.0		52.0	46.0	80	70	5.8						FU
01/01/1970	0000	5.0		46.0	44.1	93	0	0.0						DZ
01/01/1970	0000	5.0		46.0	44.1	93	0	0.0						DZ
01/01/1970	0000	5.0		45.0	43.0	93	0	0.0						DZ
01/01/1970	0000	5.0		46.0	42.1	86	0	0.0						DZ
01/01/1970	0000	5.0		48.0	42.1	80	130	5.8						DZ
01/01/1970	0000	5.0		53.1	39.9	61	110	4.6						DZ
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	6.0		51.1	36.0	56	110	8.1						DZ
01/01/1970	0000	3.0		37.0	33.1	85	170	4.6						DZ
01/01/1970	0000	3.0		30.0	28.9	96	310	4.6
01/01/1970	0000	4.0		30.0	30.0	100	0	0.0
01/01/1970	0000	5.0		28.9	28.9	100	0	0.0						DZ
01/01/1970	0000	5.0		30.0	30.0	100	0	0.0						DZ
01/01/1970	0000	6.0		32.0	32.0	100	0	0.0						DZ
01/01/1970	0000	7.0		43.0	30.9	62	120	3.5
01/01/1970	0000	6.0		41.0	30.9	67	0	0.0						DZ
01/01/1970	0000	0.3		26.1	26.1	100	280	4.6						SG FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	0.0		24.1	24.1	100	0	0.0						FG
01/01/1970	0000	6.0		21.9	21.9	100	0	0.0						FG
01/01/1970	0000	5.0		24.1	24.1	100	0	0.0						FG
01/01/1970	0000	6.0		27.0	27.0	100	0	0.0						FU
01/01/1970	0000	8.0		30.9	28.9	92	360	4.6							CLR
01/01/1970	0000	9.0		41.0	30.9	67	110	6.9
01/01/1970	0000	8.0		42.1	30.9	64	100	5.8							CLR
01/01/1970	0000	6.0		27.0	25.0	92	290	3.5						DZ	CLR
01/01/1970	0000	7.0		17.1	17.1	100	0	0.0							CLR
01/01/1970	0000	8.0		19.9	19.9	100	0	0.0							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	10.0		21.9	21.9	100	0	0.0							CLR
01/01/1970	0000	10.0		25.0	24.1	96	0	0.0							CLR
01/01/1970	0000	10.0		28.9	25.0	85	310	4.6							CLR
01/01/1970	0000	15.0		42.1	21.9	44	180	4.6							CLR
01/01/1970	0000	15.0		41.0	21.9	46	180	6.9							CLR
01/01/1970	0000	10.0		27.0	25.0	92	350	3.5							CLR
01/01/1970	0000	15.0		17.1	17.1	100	310	4.6							CLR
01/01/1970	0000	15.0		19.9	19.9	100	350	4.6							CLR
01/01/1970	0000	15.0		21.9	21.9	100	300	4.6							CLR
01/01/1970	0000	15.0		23.0	23.0	100	0	0.0							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	15.0		28.0	23.0	81	360	4.6
01/01/1970	0000	15.0		39.9	21.9	48	150	6.9							CLR
01/01/1970	0000	15.0		37.0	21.9	54	180	4.6							CLR
01/01/1970	0000	15.0		27.0	21.9	81	250	5.8							CLR
01/01/1970	0000	15.0		18.0	18.0	100	280	4.6							CLR
01/01/1970	0000	10.0		19.9	19.9	100	300	4.6							CLR
01/01/1970	0000	15.0		23.0	19.0	85	0	0.0							CLR
01/01/1970	0000	15.0		26.1	21.0	81	270	6.9							CLR
01/01/1970	0000	15.0		28.9	19.0	66	260	9.2							CLR
01/01/1970	0000	15.0		37.0	19.9	50	330	13.8							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	15.0		36.0	25.0	64	330	13.8
01/01/1970	0000	10.0		36.0	30.9	82	330	17.3						-SHSN
01/01/1970	0000	15.0		36.0	27.0	70	330	12.7
01/01/1970	0000	10.0		41.0	32.0	70	310	9.2
01/01/1970	0000	10.0		44.1	32.0	62	310	13.8
01/01/1970	0000	10.0		50.0	36.0	58	300	13.8
01/01/1970	0000	10.0		55.9	51.1	84	280	9.2
01/01/1970	0000	7.0		57.9	53.1	84	240	15.0						-SHRA
01/01/1970	0000	6.0		54.0	51.1	90	10	4.6						FU
01/01/1970	0000	4.0		51.1	50.0	96	280	3.5
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	4.0		45.0	45.0	100	340	3.5						FG
01/01/1970	0000	7.0		46.0	46.0	100	280	5.8
01/01/1970	0000	5.0		48.9	48.0	97	120	6.9						FG
01/01/1970	0000	6.0		48.0	46.0	93	80	5.8				0.02		DZ
01/01/1970	0000	5.0		48.0	46.0	93	260	4.6						DZ
01/01/1970	0000	5.0		53.1	45.0	74	240	4.6						-SHRA DZ
01/01/1970	0000	6.0		53.1	43.0	69	110	4.6						DZ
01/01/1970	0000	4.0		45.0	43.0	93	50	3.5						DZ
01/01/1970	0000	4.0		39.0	39.0	100	240	3.5						FG
01/01/1970	0000	7.0		39.9	39.9	100	290	5.8
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	8.0		41.0	41.0	100	120	5.8
01/01/1970	0000	8.0		42.1	39.9	92	10	5.8				0.01		-SHRA
01/01/1970	0000	10.0		45.0	34.0	65	160	15.0
01/01/1970	0000	6.0		45.0	33.1	63	150	15.0						DZ
01/01/1970	0000	10.0		45.0	28.0	51	150	11.5
01/01/1970	0000	10.0		37.9	26.1	62	110	6.9
01/01/1970	0000	10.0		28.0	24.1	85	200	4.6
01/01/1970	0000	10.0		30.9	27.0	85	40	5.8
01/01/1970	0000	10.0		28.9	26.1	89	0	0.0							CLR
01/01/1970	0000	10.0		30.0	25.0	81	10	4.6
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	15.0		37.0	24.1	59	60	4.6
01/01/1970	0000	15.0		44.1	24.1	45	10	10.4
01/01/1970	0000	15.0		44.1	25.0	47	350	11.5
01/01/1970	0000	15.0		37.9	26.1	62	270	15.0
01/01/1970	0000	15.0		30.0	25.0	81	250	6.9
01/01/1970	0000	8.0		33.1	24.1	69	280	9.2
01/01/1970	0000	8.0		37.0	26.1	64	300	11.5
01/01/1970	0000	10.0		33.1	30.9	92	330	5.8
01/01/1970	0000	10.0		34.0	30.0	85	330	6.9							CLR
01/01/1970	0000	15.0		45.0	28.9	53	120	4.6							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	15.0		43.0	28.0	55	60	5.8							CLR
01/01/1970	0000	15.0		30.9	28.0	89	0	0.0
01/01/1970	0000	10.0		23.0	23.0	100	310	4.6
01/01/1970	0000	10.0		25.0	25.0	100	0	0.0							CLR
01/01/1970	0000	15.0		26.1	26.1	100	0	0.0							CLR
01/01/1970	0000	15.0		28.0	25.0	88	310	5.8							CLR
01/01/1970	0000	15.0		32.0	23.0	69	0	0.0							CLR
01/01/1970	0000	15.0		43.0	19.9	39	350	9.2							CLR
01/01/1970	0000	15.0		44.1	21.9	41	360	6.9							CLR
01/01/1970	0000	15.0		37.0	25.0	61	360	9.2							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	15.0		30.0	25.0	81	310	8.1							CLR
01/01/1970	0000	15.0		34.0	26.1	72	290	9.2							CLR
01/01/1970	0000	8.0		37.9	35.1	89	270	9.2
01/01/1970	0000	8.0		36.0	34.0	92	270	8.1							CLR
01/01/1970	0000	10.0		43.0	34.0	70	310	6.9
01/01/1970	0000	10.0		48.0	36.0	63	270	11.5
01/01/1970	0000	7.0		48.9	36.0	61	280	12.7
01/01/1970	0000	6.0		48.0	37.0	66	300	11.5						DZ
01/01/1970	0000	4.0		44.1	44.1	100	360	4.6						FG
01/01/1970	0000	6.0		46.0	46.0	100	0	0.0						FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	7.0		46.0	46.0	100	130	5.8
01/01/1970	0000	10.0		44.1	44.1	100	0	0.0
01/01/1970	0000	10.0		48.0	42.1	80	0	0.0
01/01/1970	0000	15.0		50.0	42.1	74	240	5.8
01/01/1970	0000	10.0		50.0	43.0	77	260	8.1
01/01/1970	0000	10.0		50.0	44.1	80	260	4.6
01/01/1970	0000	10.0		51.1	48.0	89	260	9.2
01/01/1970	0000	10.0		53.1	51.1	93	270	11.5
01/01/1970	0000	10.0		57.9	57.9	100	260	9.2
01/01/1970	0000	2.0		57.0	55.0	93	280	16.1						TSRA
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	9.0		66.0	62.1	87	150	16.1
01/01/1970	0000	5.0		64.0	62.1	93	180	9.2						-SHRA FG
01/01/1970	0000	10.0		64.0	61.0	90	170	8.1
01/01/1970	0000	5.0		62.1	60.1	93	160	20.7						DZ
01/01/1970	0000	5.0		60.1	59.0	96	170	16.1				0.03		DZ
01/01/1970	0000	4.0		57.0	57.0	100	120	9.2				0.02		DZ
01/01/1970	0000	6.0		57.0	55.9	96	60	6.9						-RA DZ
01/01/1970	0000	6.0		59.0	55.9	90	60	8.1						DZ
01/01/1970	0000	4.0		59.0	55.9	90	100	10.4						DZ
01/01/1970	0000	5.0		59.0	55.9	90	90	8.1						DZ
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	10.5		55.9	55.0	97	70	5.8						FG
01/01/1970	0000	5.5		53.1	53.1	100	70	5.8						FG
01/01/1970	0000	5.5		50.0	50.0	100	280	4.6				0.01		FG
01/01/1970	0000	5.5		48.0	48.0	100	90	9.2				0.02		-RA FG
01/01/1970	0000	5.5		46.9	46.9	100	120	6.9						FG
01/01/1970	0000	5.5		46.9	46.9	100	0	0.0				0.02		-RA FG
01/01/1970	0000	10.5		46.9	46.9	100	250	4.6				0.02		-RA FG
01/01/1970	0000	3.0		46.9	46.9	100	80	5.8				0.01		-RA FG
01/01/1970	0000	4.0		48.0	44.1	86	130	9.2						-RA DZ
01/01/1970	0000	5.0		46.9	41.0	80	110	11.5						DZ
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	6.0		43.0	39.9	89	140	8.1						DZ
01/01/1970	0000	5.0		42.1	39.9	92	50	6.9						FG
01/01/1970	0000	5.0		39.9	39.9	100	220	5.8						FG
01/01/1970	0000	5.0		39.9	39.9	100	70	5.8						FG
01/01/1970	0000	5.0		39.0	37.9	96	70	9.2				0.01		FG
01/01/1970	0000	5.0		39.0	37.9	96	160	6.9				0.04		-RA FG
01/01/1970	0000	7.0		42.1	33.1	70	140	5.8						-SHRA
01/01/1970	0000	7.0		36.0	32.0	85	50	8.1
01/01/1970	0000	8.0		25.0	25.0	100	0	0.0
01/01/1970	0000	8.0		25.0	25.0	100	60	4.6							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	10.0		27.0	27.0	100	300	4.6							CLR
01/01/1970	0000	10.0		28.9	28.9	100	240	4.6
01/01/1970	0000	15.0		37.9	30.0	73	290	8.1
01/01/1970	0000	15.0		41.0	30.9	67	310	9.2
01/01/1970	0000	15.0		41.0	32.0	70	320	9.2
01/01/1970	0000	15.0		41.0	35.1	79	280	11.5
01/01/1970	0000	9.0		37.9	35.1	89	270	11.5
01/01/1970	0000	7.0		37.0	35.1	93	270	11.5
01/01/1970	0000	3.0		37.0	37.0	100	300	6.9						-RA FG
01/01/1970	0000	10.0		43.0	33.1	68	230	5.8				0.01
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	10.0		42.1	33.1	70	150	6.9
01/01/1970	0000	10.0		42.1	28.9	59	170	5.8
01/01/1970	0000	8.0		39.9	28.0	62	120	4.6
01/01/1970	0000	7.0		30.9	28.0	89	130	3.5
01/01/1970	0000	7.0		23.0	23.0	100	0	0.0
01/01/1970	0000	10.0		23.0	21.9	96	0	0.0							CLR
01/01/1970	0000	10.0		24.1	21.9	91	0	0.0							CLR
01/01/1970	0000	10.0		27.0	23.0	85	360	5.8							CLR
01/01/1970	0000	15.0		35.1	19.0	52	300	3.5							CLR
01/01/1970	0000	15.0		39.0	16.0	39	260	13.8
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	15.0		39.9	15.1	36	270	17.3
01/01/1970	0000	15.0		34.0	19.0	54	260	18.4
01/01/1970	0000	15.0		30.0	18.0	60	240	11.5
01/01/1970	0000	15.0		32.0	21.0	64	250	13.8
01/01/1970	0000	15.0		34.0	18.0	51	240	16.1
01/01/1970	0000	15.0		35.1	21.0	56	240	13.8
01/01/1970	0000	15.0		37.0	24.1	59	230	15.0
01/01/1970	0000	15.0		37.0	21.9	54	230	15.0
01/01/1970	0000	15.0		39.9	23.0	50	260	18.4
01/01/1970	0000	15.0		42.1	32.0	67	270	15.0
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	15.0		52.0	48.9	89	150	12.7
01/01/1970	0000	10.0		55.0	53.1	93	70	10.4
01/01/1970	0000	8.0		66.0	64.9	96	90	9.2						-SHRA
01/01/1970	0000	10.0		66.9	64.0	91	80	24.2				0.25
01/01/1970	0000	8.0		63.0	61.0	93	80	15.0				0.03		-SHRA
01/01/1970	0000	10.0		63.0	61.0	93	120	5.8
01/01/1970	0000	7.0		62.1	62.1	100	90	20.7
01/01/1970	0000	7.0		61.0	60.1	97	100	17.3
01/01/1970	0000	5.0		57.9	57.9	100	90	12.7				0.01		FG
01/01/1970	0000	2.0		54.0	54.0	100	0	0.0						-SHRA FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	6.0		54.0	54.0	100	100	3.5						DZ
01/01/1970	0000	7.0		53.1	51.1	93	220	5.8
01/01/1970	0000	7.0		53.1	48.0	83	150	6.9
01/01/1970	0000	7.0		59.0	48.0	67	160	12.7
01/01/1970	0000	7.0		57.9	48.0	70	160	16.1
01/01/1970	0000	7.0		51.1	45.0	80	120	13.8
01/01/1970	0000	8.0		46.9	43.0	86	70	15.0						-SHRA
01/01/1970	0000	10.0		46.9	39.9	76	70	12.7
01/01/1970	0000	10.0		48.0	39.9	73	60	17.3
01/01/1970	0000	10.0		48.9	39.0	69	60	11.5
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
01/01/1970	0000	10.0		51.1	37.9	61	130	12.7

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