Weather archive on Mount Washington (AWS)

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Date / Local time		T	Po	P	Pa	U	DD	Ff	ff10	ff3	N	WW	W1	W2	Tn	Tx	Cl	Nh	H	Cm	Ch	VV	Td	RRR	tR	E	Tg	E'	sss
2026 September 12, Saturday	08	8.9 48	608.8 23.97 811.67 811.67		0.3 0.01 0.4 0.4	14	Wind blowing from the west	Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0				1.2 34	9.6 49	No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	no clouds no clouds no clouds	2500 or more, or no clouds. 8202 or more, or no clouds.	No Altocumulus, Altostratus or Nimbostratus.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	71.0 44.1	-17.5 1
	05	8.8 48	608.5 23.96 811.27 811.27		0.6 0.02 0.8 0.8	14	Wind blowing from the west	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			no clouds no clouds no clouds											71.0 44.1	-17.7 0
	02	9.5 49	607.9 23.93 810.47 810.47		0.7 0.03 0.93 0.93	12	Wind blowing from the north-west	Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft)			no clouds no clouds no clouds	Cloud development not observed or not observable.	Fog or ice fog or thick haze.	Cloud covering 1/2 or less of the sky throughout the appropriate period.	-0.4 31	9.6 49						71.0 44.1	-18.7 -2
September 11, Friday	23	4.9 41	607.2 23.91 809.53 809.53		1.2 0.05 1.6 1.6	10	Wind blowing from the north-west	Near gale (15 m/s) (54 km/h) (34 mph) (29 knots) (7 Bft)			no clouds no clouds no clouds	Cloud development not observed or not observable.	Fog or ice fog or thick haze.	Cloud covering 1/2 or less of the sky throughout the appropriate period.								71.0 44.1	-24.5 -12
	20	1.2 34	606.0 23.86 807.93 807.93		1.0 0.04 1.33 1.33	91	Wind blowing from the west-northwest	Strong gale (21 m/s) (76 km/h) (47 miles/hour) (41 mile/hour) (9 Bft)			20–30%. 2/10–3/10. 2 oktas	Fog or ice fog in patches.	Fog or ice fog or thick haze.	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.	-0.4 31	3.3 38	Stratocumulus cumulogenitus.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	Less than 50 Less than 50	No Altocumulus, Altostratus or Nimbostratus.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	71.0 44.1	-0.1 32
	17	2.8 37	605.0 23.82 806.6 806.6		0.5 0.02 0.67 0.67	87	Wind blowing from the west-northwest	Gale (19 m/s) (68 km/h) (43 mph) (37 knots) (8 Bft)			20–30%. 2/10–3/10. 2 oktas	Fog or ice fog in patches.	Fog or ice fog or thick haze.	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.			Stratocumulus cumulogenitus.	20–30%. 2/10–3/10. 2 oktas	Less than 50 Less than 50	No Altocumulus, Altostratus or Nimbostratus.	Cirrostratus not progressively invading the sky and not entirely covering it.	71.0 44.1	0.9 34
	14	2.5 37	604.5 23.8 805.93 805.93		0.7 0.03 0.93 0.93	97	Wind blowing from the west-northwest	Gale (19 m/s) (68 km/h) (43 mph) (37 knots) (8 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas	Fog or ice fog, sky visible, has begun or has become thicker during the preceding hour.	Fog or ice fog or thick haze.	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.	-0.4 31	2.5 37	Stratocumulus cumulogenitus.	70 – 80%. 7/10 – 8/10. 6 oktas		Altocumulus translucidus at a single level.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	0.3 0.2	2.1 36
	11	0.3 33	603.8 23.77 805 805		0.8 0.03 1.07 1.07	99	Wind blowing from the north-west	Strong gale (22 m/s) (79 km/h) (49 miles/hour) (43 knots) (9 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	Fog or ice fog, sky visible, no appreciable change during the preceding hour.	Fog or ice fog or thick haze.	Cloud covering more than 1/2 of the sky throughout the appropriate period.			Stratocumulus cumulogenitus.	100%. 10/10. 8 oktas	Less than 50 Less than 50			0.1 0.06	0.1 32
	08	-0.4 31	603.0 23.74 803.93 803.93		0.4 0.02 0.53 0.53	100	Wind blowing from the west-northwest	Strong gale (23 m/s) (83 km/h) (51 mile/hour) (45 knots) (9 Bft)			Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena. Sky obscured by fog and/or other meteorological phenomena.	Fog, depositing rime, sky invisible.	Fog or ice fog or thick haze.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	-0.4 31	13.0 55						0.1 0.06	-0.4 31