Pennsylvania State Climatologist

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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
05/31/1971	2100	25.0		77.0	48.0	36	340	16.1
05/31/1971	1800	25.0		79.0	55.0	44	360	12.7
05/31/1971	1500	15.0		73.9	55.0	52	340	11.5							CLR
05/31/1971	1200	10.0		60.1	51.1	72	260	10.4							CLR
05/31/1971	0900	7.0		53.1	50.0	89	240	6.9
05/31/1971	0600	7.0		59.0	54.0	83	270	9.2
05/31/1971	0300	7.0		62.1	60.1	93	0	0.0
05/31/1971	0000	15.0		66.0	63.0	90	240	4.6
05/30/1971	2100	10.0		71.1	57.0	61	40	8.1						-RA
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/30/1971	1800	15.0		70.0	55.0	59	130	9.2						-RA
05/30/1971	1500	10.0		70.0	46.0	42	20	9.2
05/30/1971	1200	10.0		55.0	53.1	93	260	8.1
05/30/1971	0900	7.0		50.0	48.9	96	200	4.6
05/30/1971	0600	7.0		53.1	50.0	89	280	5.8
05/30/1971	0300	7.0		62.1	50.0	65	350	8.1
05/30/1971	0000	25.0		66.9	53.1	61	250	4.6
05/29/1971	2100	25.0		72.0	46.9	41	60	8.1
05/29/1971	1800	25.0		70.0	46.9	44	170	3.5
05/29/1971	1500	20.0		66.0	48.9	54	360	4.6
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/29/1971	1200	10.0		50.0	48.0	93	250	5.8
05/29/1971	0900	7.0		46.0	45.0	96	320	4.6
05/29/1971	0600	7.0		48.9	46.0	90	320	4.6
05/29/1971	0300	7.0		53.1	46.9	80	300	4.6
05/29/1971	0000	25.0		63.0	44.1	50	30	3.5
05/28/1971	2100	25.0		66.9	45.0	45	20	5.8
05/28/1971	1800	25.0		61.0	46.0	58	0	0.0
05/28/1971	1500	20.0		60.1	46.9	62	290	10.4
05/28/1971	1200	10.0		48.9	45.0	86	260	10.4
05/28/1971	0900	7.0		45.0	44.1	97	280	4.6
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/28/1971	0600	7.0		48.9	45.0	86	260	4.6
05/28/1971	0300	7.0		55.0	45.0	69	300	6.9
05/28/1971	0000	10.0		57.9	43.0	57	310	11.5
05/27/1971	2100	15.0		62.1	45.0	54	300	9.2
05/27/1971	1800	20.0		61.0	42.1	50	260	16.1
05/27/1971	1500	7.0		57.9	48.9	72	240	9.2
05/27/1971	1200	6.0		52.0	48.0	86	0	0.0						DZ
05/27/1971	0900	7.0		48.9	48.0	97	0	0.0							CLR
05/27/1971	0600	7.0		55.0	46.0	72	0	0.0
05/27/1971	0300	7.0		55.9	46.0	69	250	6.9
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/27/1971	0000	10.0		57.9	45.0	62	260	13.8
05/26/1971	2100	10.0		61.0	45.0	56	260	16.1
05/26/1971	1800	10.0		59.0	46.0	62	260	10.4
05/26/1971	1500	15.0		57.9	46.9	67	260	10.4
05/26/1971	1200	15.0		57.9	46.9	67	250	10.4
05/26/1971	0900	7.0		61.0	44.1	54	260	13.8
05/26/1971	0600	7.0		63.0	46.0	54	180	5.8
05/26/1971	0300	7.0		62.1	45.0	54	270	5.8
05/26/1971	0000	15.0		71.1	42.1	35	270	15.0
05/25/1971	2100	15.0		78.1	55.9	47	180	16.1
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/25/1971	1800	10.0		75.0	62.1	64	170	16.1
05/25/1971	1500	6.0		66.0	60.1	81	170	5.8						SHRA
05/25/1971	1200	4.0		68.0	64.0	87	160	20.7						DZ
05/25/1971	0900	5.0		66.9	63.0	87	80	11.5						DZ
05/25/1971	0600	5.0		66.9	63.0	87	70	8.1						DZ
05/25/1971	0300	5.0		64.9	60.1	84	40	9.2						DZ
05/25/1971	0000	7.0		66.9	59.0	76	90	5.8
05/24/1971	2100	10.0		68.0	55.9	65	160	9.2						-SHRA
05/24/1971	1800	15.0		66.9	50.0	55	140	6.9
05/24/1971	1500	25.0		66.9	43.0	42	90	9.2
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/24/1971	1200	25.0		50.0	41.0	71	130	3.5
05/24/1971	0900	7.0		43.0	39.0	86	360	5.8
05/24/1971	0600	7.0		48.0	45.0	89	0	0.0							CLR
05/24/1971	0300	7.0		55.0	46.0	72	0	0.0							CLR
05/24/1971	0000	25.0		68.0	39.9	36	360	8.1							CLR
05/23/1971	2100	25.0		73.0	42.1	33	10	13.8							CLR
05/23/1971	1800	25.0		71.1	43.0	36	310	6.9							CLR
05/23/1971	1500	25.0		62.1	41.0	46	240	9.2
05/23/1971	1200	20.0		50.0	39.9	68	280	11.5							CLR
05/23/1971	0900	7.0		44.1	39.0	82	280	11.5							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/23/1971	0600	7.0		46.0	39.9	79	320	5.8							CLR
05/23/1971	0300	7.0		51.1	37.9	61	280	6.9							CLR
05/23/1971	0000	25.0		60.1	32.0	35	310	11.5							CLR
05/22/1971	2100	25.0		66.0	37.9	36	340	11.5
05/22/1971	1800	25.0		62.1	42.1	48	310	11.5
05/22/1971	1500	25.0		57.9	41.0	53	300	19.6
05/22/1971	1200	25.0		53.1	39.0	59	310	15.0
05/22/1971	0900	7.0		54.0	45.0	72	260	5.8
05/22/1971	0600	7.0		55.0	48.0	77	0	0.0
05/22/1971	0300	7.0		60.1	45.0	57	330	5.8
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/22/1971	0000	20.0		64.9	46.9	52	0	0.0
05/21/1971	2100	25.0		66.9	48.9	52	20	5.8
05/21/1971	1800	25.0		66.9	48.9	52	120	9.2
05/21/1971	1500	10.0		64.0	55.9	75	260	4.6
05/21/1971	1200	10.0		57.0	55.9	96	50	4.6
05/21/1971	0900	4.0		55.9	55.9	100	0	0.0						-RA FG
05/21/1971	0600	4.0		60.1	60.1	100	100	10.4						-SHRA FG
05/21/1971	0300	4.0		63.0	63.0	100	300	6.9						FG
05/21/1971	0000	4.0		72.0	62.1	71	150	10.4						DZ
05/20/1971	2100	6.0		75.9	64.0	67	170	13.8						DZ
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/20/1971	1800	6.0		77.0	64.0	64	150	12.7						DZ
05/20/1971	1500	6.0		72.0	61.0	68	50	8.1						DZ
05/20/1971	1200	6.0		66.0	57.0	73	80	5.8						DZ
05/20/1971	0900	7.0		68.0	57.0	68	90	13.8
05/20/1971	0600	7.0		71.1	61.0	71	80	5.8
05/20/1971	0300	7.0		79.0	59.0	51	170	15.0
05/20/1971	0000	10.0		82.9	59.0	44	140	15.0
05/19/1971	2100	10.0		86.0	60.1	42	140	13.8
05/19/1971	1800	10.0		84.9	62.1	46	160	9.2
05/19/1971	1500	8.0		73.9	62.1	67	160	4.6
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/19/1971	1200	7.0		61.0	55.0	81	0	0.0							CLR
05/19/1971	0900	7.0		55.0	55.0	100	0	0.0							CLR
05/19/1971	0600	7.0		59.0	55.0	87	0	0.0							CLR
05/19/1971	0300	7.0		68.0	55.9	65	0	0.0							CLR
05/19/1971	0000	20.0		77.0	55.0	47	70	5.8							CLR
05/18/1971	2100	20.0		82.0	55.0	40	160	9.2							CLR
05/18/1971	1800	25.0		77.0	54.0	45	130	5.8							CLR
05/18/1971	1500	15.0		66.9	45.0	45	0	0.0							CLR
05/18/1971	1200	15.0		52.0	45.0	77	290	6.9							CLR
05/18/1971	0900	7.0		46.9	46.0	97	0	0.0							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/18/1971	0600	7.0		50.0	46.9	89	300	5.8							CLR
05/18/1971	0300	7.0		57.0	46.0	67	0	0.0							CLR
05/18/1971	0000	25.0		73.0	37.9	28	330	11.5							CLR
05/17/1971	2100	25.0		75.9	35.1	23	330	17.3							CLR
05/17/1971	1800	25.0		73.9	33.1	22	330	15.0							CLR
05/17/1971	1500	25.0		71.1	43.0	36	300	13.8
05/17/1971	1200	2.8		57.9	57.0	97	270	6.9						FG
05/17/1971	0900	1.0		55.0	55.0	100	320	6.9						FG
05/17/1971	0600	0.3		55.0	55.0	100	0	0.0						FG
05/17/1971	0300	2.0		55.9	55.0	97	0	0.0						FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/17/1971	0000	6.0		61.0	55.0	81	0	0.0				0.10		DZ
05/16/1971	2100	6.0		61.0	55.0	81	180	5.8						DZ
05/16/1971	1800	5.0		59.0	55.0	87	150	3.5						DZ
05/16/1971	1500	3.0		57.0	54.0	90	0	0.0						FG
05/16/1971	1200	10.5		54.0	52.0	93	100	9.2						-RA FG
05/16/1971	0900	4.0		55.0	54.0	96	80	6.9						-RA FG
05/16/1971	0600	7.0		57.9	50.0	75	140	8.1						-RA
05/16/1971	0300	7.0		62.1	46.9	58	140	16.1
05/16/1971	0000	15.0		64.9	44.1	47	170	18.4
05/15/1971	2100	15.0		66.9	43.0	42	160	17.3
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/15/1971	1800	25.0		66.0	41.0	40	200	8.1
05/15/1971	1500	25.0		61.0	35.1	38	20	4.6
05/15/1971	1200	15.0		44.1	37.0	76	0	0.0
05/15/1971	0900	7.0		39.0	35.1	86	340	3.5							CLR
05/15/1971	0600	7.0		42.1	36.0	79	240	4.6							CLR
05/15/1971	0300	7.0		50.0	37.0	61	230	5.8							CLR
05/15/1971	0000	25.0		64.0	28.0	26	360	3.5							CLR
05/14/1971	2100	25.0		70.0	35.1	28	10	15.0							CLR
05/14/1971	1800	25.0		68.0	42.1	39	290	8.1							CLR
05/14/1971	1500	15.0		60.1	45.0	57	270	16.1							CLR
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/14/1971	1200	7.0		48.0	42.1	80	280	11.5
05/14/1971	0900	1.0		45.0	44.1	97	270	10.4						FG
05/14/1971	0600	1.0		45.0	45.0	100	340	6.9						FG
05/14/1971	0300	7.0		46.9	46.9	100	350	5.8
05/14/1971	0000	10.0		50.0	48.0	93	280	6.9
05/13/1971	2100	10.0		51.1	48.0	89	290	9.2				0.05		-RA
05/13/1971	1800	3.0		50.0	48.9	96	260	8.1				0.05		-RA FG
05/13/1971	1500	3.0		48.0	46.0	93	270	3.5				0.08		-RA FG
05/13/1971	1200	4.0		46.9	45.0	93	0	0.0						-RA FG
05/13/1971	0900	4.0		50.0	48.0	93	0	0.0						-RA FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/13/1971	0600	4.0		57.9	55.9	93	290	11.5				0.03		-SHRA FG
05/13/1971	0300	5.0		62.1	61.0	96	280	9.2						FG
05/13/1971	0000	4.0		66.0	62.1	87	50	9.2				0.05		DZ
05/12/1971	2100	5.0		66.9	60.1	79	140	13.8						-RA DZ
05/12/1971	1800	6.0		63.0	57.9	84	30	9.2						DZ
05/12/1971	1500	5.0		60.1	57.9	93	70	8.1						-RA FG
05/12/1971	1200	10.0		64.0	50.0	60	90	8.1						-SHRA
05/12/1971	0900	7.0		64.9	46.9	52	60	11.5
05/12/1971	0600	7.0		68.0	44.1	42	140	11.5
05/12/1971	0300	7.0		71.1	45.0	39	180	15.0
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/12/1971	0000	20.0		73.9	45.0	36	150	15.0
05/11/1971	2100	25.0		75.0	43.0	32	110	13.8
05/11/1971	1800	20.0		75.0	42.1	31	180	6.9
05/11/1971	1500	10.0		66.9	44.1	44	220	3.5
05/11/1971	1200	7.0		51.1	45.0	80	270	5.8
05/11/1971	0900	7.0		44.1	41.0	89	0	0.0							CLR
05/11/1971	0600	7.0		48.0	42.1	80	0	0.0							CLR
05/11/1971	0300	7.0		55.0	45.0	69	340	5.8							CLR
05/11/1971	0000	25.0		70.0	39.0	32	360	9.2							CLR
05/10/1971	2100	25.0		75.0	37.9	26	340	12.7
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/10/1971	1800	25.0		73.0	42.1	33	350	16.1
05/10/1971	1500	10.0		61.0	50.0	67	230	9.2							CLR
05/10/1971	1200	1.0		46.9	46.9	100	290	11.5						FG
05/10/1971	0900	7.0		46.9	46.9	100	270	11.5						-RA
05/10/1971	0600	7.0		48.9	48.9	100	280	6.9						-RA
05/10/1971	0300	7.0		50.0	48.9	96	270	8.1						-RA
05/10/1971	0000	8.0		51.1	48.9	92	250	4.6						-RA
05/09/1971	2100	20.0		55.9	45.0	67	330	9.2
05/09/1971	1800	20.0		55.0	45.0	69	310	13.8
05/09/1971	1500	25.0		53.1	46.0	77	340	6.9
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/09/1971	1200	20.0		52.0	46.9	83	300	13.8
05/09/1971	0900	5.0		52.0	50.0	93	280	11.5						FG
05/09/1971	0600	5.0		53.1	50.0	89	270	9.2						FG
05/09/1971	0300	5.0		53.1	50.0	89	270	9.2						FG
05/09/1971	0000	6.0		55.0	53.1	93	180	6.9						FG
05/08/1971	2100	2.0		55.9	53.1	90	160	18.4						-SHRA FG
05/08/1971	1800	8.0		55.9	52.0	87	140	13.8
05/08/1971	1500	2.0		53.1	52.0	96	140	13.8						-RA FG
05/08/1971	1200	5.5		53.1	51.1	93	120	18.4						RA FG
05/08/1971	0900	5.0		54.0	51.1	90	140	13.8				0.03		-RA FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/08/1971	0600	7.0		60.1	50.0	69	170	11.5				0.05		-SHRA
05/08/1971	0300	7.0		61.0	43.0	52	150	8.1
05/08/1971	0000	15.0		64.9	37.0	36	90	5.8
05/07/1971	2100	20.0		70.0	37.0	30	170	6.9
05/07/1971	1800	10.0		69.1	36.0	30	240	6.9
05/07/1971	1500	4.0		54.0	50.0	86	250	5.8						DZ
05/07/1971	1200	0.3		46.9	46.9	100	260	9.2						FG
05/07/1971	0900	0.5		46.9	46.9	100	320	5.8						FG
05/07/1971	0600	1.0		48.0	48.0	100	300	6.9						FG
05/07/1971	0300	3.0		48.9	48.9	100	330	5.8						FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/07/1971	0000	8.0		55.0	51.1	87	290	4.6
05/06/1971	2100	10.0		57.0	50.0	77	220	5.8
05/06/1971	1800	7.0		57.9	51.1	78	20	9.2
05/06/1971	1500	5.0		55.0	53.1	93	100	5.8						FG
05/06/1971	1200	10.5		54.0	53.1	97	70	11.5						-SHRA FG
05/06/1971	0900	4.0		54.0	53.1	97	0	0.0				0.03		-SHRA FG
05/06/1971	0600	7.0		55.0	53.1	93	0	0.0						-SHRA
05/06/1971	0300	7.0		62.1	46.0	56	260	5.8
05/06/1971	0000	10.0		69.1	43.0	39	240	15.0
05/05/1971	2100	20.0		72.0	41.0	33	250	15.0
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/05/1971	1800	20.0		70.0	39.9	34	230	19.6
05/05/1971	1500	10.0		60.1	36.0	40	270	12.7
05/05/1971	1200	10.0		42.1	30.9	64	0	0.0
05/05/1971	0900	7.0		39.0	30.0	70	0	0.0
05/05/1971	0600	7.0		45.0	28.0	51	270	5.8
05/05/1971	0300	7.0		52.0	21.0	29	280	13.8							CLR
05/05/1971	0000	25.0		57.9	18.0	21	300	15.0							CLR
05/04/1971	2100	25.0		64.0	23.0	21	310	16.1							CLR
05/04/1971	1800	25.0		61.0	30.0	31	280	18.4
05/04/1971	1500	25.0		55.0	33.1	43	270	15.0
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/04/1971	1200	20.0		45.0	34.0	65	270	18.4
05/04/1971	0900	7.0		44.1	37.0	76	270	16.1
05/04/1971	0600	7.0		44.1	39.0	82	280	13.8
05/04/1971	0300	7.0		45.0	39.0	80	270	13.8				0.03		-SHRA
05/04/1971	0000	10.0		48.0	36.0	63	310	11.5						-SHRA
05/03/1971	2100	10.0		46.9	39.0	74	340	13.8
05/03/1971	1800	10.0		53.1	39.9	61	330	13.8
05/03/1971	1500	9.0		50.0	41.0	71	310	8.1
05/03/1971	1200	8.0		46.0	42.1	86	270	9.2
05/03/1971	0900	5.0		44.1	41.0	89	0	0.0				0.03		-RA FG
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/03/1971	0600	5.0		46.9	45.0	93	280	9.2						-RA FG
05/03/1971	0300	5.0		48.0	46.9	96	320	4.6						FG
05/03/1971	0000	7.0		48.9	46.9	93	270	9.2						-RA
05/02/1971	2100	5.0		52.0	48.9	89	120	9.2				0.03		-RA FG
05/02/1971	1800	4.0		52.0	50.0	93	70	5.8						-RA FG
05/02/1971	1500	5.0		51.1	46.9	86	50	13.8						-RA FG
05/02/1971	1200	7.0		48.0	46.9	96	160	4.6				0.01
05/02/1971	0900	5.0		46.9	46.0	97	100	5.8						FG
05/02/1971	0600	7.0		48.9	42.1	77	0	0.0						-SHRA
05/02/1971	0300	7.0		53.1	37.9	56	210	4.6
Date	Time	VIS	PRESS	TMP	DEW	RH	DIR	SPEED	GST	MX24	MN24	1hRa	24hRa	wx	CLOUDS	REMARKS
05/02/1971	0000	15.0		61.0	36.0	39	300	4.6
05/01/1971	2100	15.0		63.0	35.1	35	230	13.8
05/01/1971	1800	15.0		59.0	37.9	45	270	8.1
05/01/1971	1500	10.0		54.0	42.1	64	0	0.0							CLR
05/01/1971	1200	2.0		37.9	37.0	97	300	5.8						FG
05/01/1971	0900	5.0		35.1	35.1	100	0	0.0						FG
05/01/1971	0600	7.0		39.0	37.9	96	0	0.0
05/01/1971	0300	7.0		43.0	39.0	86	0	0.0
05/01/1971	0000	10.0		51.1	39.0	63	310	10.4

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