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
2025 December 6, Saturday	07	-13.5 8	594.2 23.39 792.2 792.2		-0.3 -0.01 -0.4 -0.4	100	Wind blowing from the south-west	Near gale (15 m/s) (54 km/h) (34 mph) (29 knots) (7 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.	Continuous fall of snowflakes, slight at time of observation.	Snow and/or other types of solid precipitation	Fog or ice fog or thick haze.	-15.5 4	-12.3 10						0.1 0.06	-13.5 8	Trace of precipitation Trace of precipitation	6
	04	-12.6 9	594.5 23.41 792.6 792.6		-0.9 -0.04 -1.2 -1.2	21	Wind blowing from the south-west	Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft)			60%. 6/10. 5 oktas						Stratus nebulosus or Stratus fractus other than of bad weather, or both.	60%. 6/10. 5 oktas		Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.	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	-30.3 -23
	01	-12.8 9	595.4 23.44 793.8 793.8		-0.7 -0.03 -0.93 -0.93	20	Wind blowing from the west-southwest	Near gale (14 m/s) (50 km/h) (31 mile/hour) (27 knots) (7 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas				-23.4 -10	-12.3 10	Stratus nebulosus or Stratus fractus other than of bad weather, or both.	40%. 4/10. 3 oktas		Altostratus opacus or Nimbostratus.	Cirrostratus not progressively invading the sky and not entirely covering it.	71.0 44.1	-30.9 -24
December 5, Friday	22	-14.5 6	596.1 23.47 794.73 794.73		-0.1 -0 -0.13 -0.13	26	Wind blowing from the west	Near gale (15 m/s) (54 km/h) (34 mph) (29 knots) (7 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas						Stratus nebulosus or Stratus fractus other than of bad weather, or both.	20–30%. 2/10–3/10. 2 oktas		Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon.	71.0 44.1	-30.0 -22
	19	-15.3 4	596.2 23.47 794.87 794.87			23	Wind blowing from the west	Strong gale (23 m/s) (83 km/h) (51 mile/hour) (45 knots) (9 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				-23.4 -10	-15.3 4	Stratus nebulosus or Stratus fractus other than of bad weather, or both.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0		Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon.	71.0 44.1	-31.6 -25
	16	-17.6 0	597.1 23.51 796.07 796.07			33	Wind blowing from the west	Strong gale (24 m/s) (86 km/h) (54 mph) (47 knots) (9 Bft)			50%. 5/10. 4 oktas						Stratocumulus other than Stratocumulus cumulogenitus.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0		Altocumulus translucidus in bands, or one or more layers of Altocumulus translucidus or opacus, progressively invading the sky; these Altocumulus clouds generally thicken as a whole.	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon.	71.0 44.1	-30.0 -22
	13	-19.3 -3	597.0 23.5 795.93 795.93			35	Wind blowing from the west-southwest	Gale (19 m/s) (68 km/h) (43 mph) (37 knots) (8 Bft)			50%. 5/10. 4 oktas				-29.4 -21	-19.0 -2	No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	20–30%. 2/10–3/10. 2 oktas	2500 or more, or no clouds. 8202 or more, or no clouds.	Altostratus translucidus.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	71.0 44.1	-30.9 -24
	10	-19.3 -3	598.3 23.56 797.67 797.67		0.7 0.03 0.93 0.93	33	Wind blowing from the south-west	Near gale (14 m/s) (50 km/h) (31 mile/hour) (27 knots) (7 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas						No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	60%. 6/10. 5 oktas	2500 or more, or no clouds. 8202 or more, or no clouds.	Altostratus translucidus.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	71.0 44.1	-31.6 -25
	07	-21.2 -6	597.6 23.53 796.73 796.73		1.3 0.05 1.73 1.73	39	Wind blowing from the west-northwest	Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft)			10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0				-29.4 -21	-11.3 12	No Stratocumulus, Stratus, Cumulus or Cumulonimbus.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	2500 or more, or no clouds. 8202 or more, or no clouds.	Altocumulus translucidus at a single level.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	71.0 44.1	-31.6 -25