Weather archive on Mount Washington (AWS)

To receive explanations, hover over the appropriate heading

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 May 23, Saturday	05	0.0 32	613.4 24.15 817.8 817.8		0.0 0 0 0	66	Wind blowing from the north	Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						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.	Altostratus translucidus.	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	-5.7 22
2026 May 23, Saturday	02	0.0 32	613.4 24.15 817.8 817.8		0.7 0.03 0.93 0.93	66	Wind blowing from the north	Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						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.	Altostratus translucidus.	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	-5.7 22
May 22, Friday	23	0.6 33	612.7 24.12 816.87 816.87		0.5 0.02 0.67 0.67	65	Wind blowing from the north	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			60%. 6/10. 5 oktas						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.	Altostratus translucidus.	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	-5.2 23
	20	2.1 36	612.2 24.1 816.2 816.2		0.6 0.02 0.8 0.8	57	Wind blowing from the north	Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				-5.3 22	4.4 40	Cumulus humilis or Cumulus 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	600-1000 1968-3281	Altostratus translucidus.	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	-5.7 22
	17	3.9 39	611.6 24.08 815.4 815.4		0.0 0 0 0	52	Wind blowing from the west-northwest	Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft)			40%. 4/10. 3 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 spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus.	71.0 44.1	-5.1 23
	14	3.0 37	611.6 24.08 815.4 815.4		0.1 0 0.13 0.13	53	Wind blowing from the north-west	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			40%. 4/10. 3 oktas				-5.3 22	3.0 37	Stratocumulus cumulogenitus.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus.	71.0 44.1	-5.7 22
	11	-0.8 31	611.5 24.07 815.27 815.27		0.8 0.03 1.07 1.07	62	Wind blowing from the north	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			40%. 4/10. 3 oktas						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	-7.3 19
	08	-4.4 24	610.7 24.04 814.2 814.2		1.0 0.04 1.33 1.33	71	Wind blowing from the north	Near gale (15 m/s) (54 km/h) (34 mph) (29 knots) (7 Bft)			20–30%. 2/10–3/10. 2 oktas				-5.3 22	0.6 33	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 spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus.	71.0 44.1	-8.9 16
	05	-5.3 22	609.7 24 812.87 812.87		0.5 0.02 0.67 0.67	83	Wind blowing from the north-northwest	Near gale (16 m/s) (58 km/h) (36 miles/hour) (31 mile/hour) (7 Bft)			20–30%. 2/10–3/10. 2 oktas						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 spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus.	71.0 44.1	-7.8 18