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 15, Tuesday	08	5.1 41	613.3 24.15 817.67 817.67		2.1 0.08 2.8 2.8	55	Wind blowing from the west	Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft)			50%. 5/10. 4 oktas						Stratocumulus cumulogenitus.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered.	71.0 44.1	-3.3 26
	05	5.0 41	611.2 24.06 814.87 814.87		0.8 0.03 1.07 1.07	43	Wind blowing from the south	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			no clouds no clouds no clouds											71.0 44.1	-6.8 20
	02	5.0 41	610.4 24.03 813.8 813.8		0.9 0.04 1.2 1.2	45	Wind blowing from the north-northwest	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			no clouds no clouds no clouds	Clouds generally dissolving or becoming less developed.	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.	-0.2 32	9.5 49						71.0 44.1	-6.2 21
September 14, Monday	23	0.2 32	609.5 24 812.6 812.6			98	Wind blowing from the north-west	Near gale (16 m/s) (58 km/h) (36 miles/hour) (31 mile/hour) (7 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 (has become thinner 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.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	Less than 50 Less than 50	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	0.1 0.06	-0.1 32
	20	0.3 33	608.3 23.95 811 811		1.6 0.06 2.13 2.13	100	Wind blowing from the north-west	Strong gale (22 m/s) (79 km/h) (49 miles/hour) (43 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 or ice fog, sky invisible, no appreciable change during the preceding hour.	Fog or ice fog or thick haze.	Fog or ice fog or thick haze.	-0.2 32	1.3 34						less than 0.1 less than 0.06	0.3 33
	17	0.1 32	606.7 23.89 808.87 808.87		1.1 0.04 1.47 1.47	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 or ice fog, sky invisible, no appreciable change during the preceding hour.	Fog or ice fog or thick haze.	Fog or ice fog or thick haze.								less than 0.1 less than 0.06	0.1 32
	14	0.4 33	605.6 23.84 807.4 807.4		1.3 0.05 1.73 1.73	100	Wind blowing from the west-northwest	Storm (26 m/s) (94 km/h) (58 miles/hour) (51 mile/hour) (10 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 or ice fog, sky invisible, no appreciable change during the preceding hour.	Drizzle.	Fog or ice fog or thick haze.	0.3 33	9.5 49						less than 0.1 less than 0.06	0.4 33	1.0 0.04	6
	11	0.9 34	604.3 23.79 805.67 805.67		0.5 0.02 0.67 0.67	100	Wind blowing from the west-northwest	Storm (26 m/s) (94 km/h) (58 miles/hour) (51 mile/hour) (10 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 or ice fog, sky invisible, no appreciable change during the preceding hour.	Drizzle.	Fog or ice fog or thick haze.								less than 0.1 less than 0.06	0.9 34
	08	1.3 34	603.8 23.77 805 805		0.4 0.02 0.53 0.53	100	Wind blowing from the west-northwest	Hurricane (33 m/s) (119 km/h) (74 mph) (64 knots) (12 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.	Drizzle, not freezing, continuous, slight at time of observation.	Shower(s).	Drizzle.	1.3 34	11.5 53						less than 0.1 less than 0.06	1.3 34	3.0 0.12	6