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 July 6, Monday	08	10.6 51	611.7 24.08 815.53 815.53		0.6 0.02 0.8 0.8	89	Wind blowing from the south-east	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 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.	8.6 47	15.8 60	Stratocumulus cumulogenitus.	50%. 5/10. 4 oktas		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.	30.0 18.6	8.8 48
	05	8.6 47	611.1 24.06 814.73 814.73			93	Wind blowing from the south-east	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						Stratocumulus other than Stratocumulus cumulogenitus.	40%. 4/10. 3 oktas		Altostratus opacus or Nimbostratus.	Cirrostratus not progressively invading the sky and not entirely covering it.	50.0 31.1	7.5 46
	02	9.5 49	610.9 24.05 814.47 814.47		0.5 0.02 0.67 0.67	79	Wind blowing from the east-southeast	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas				7.2 45	15.8 60	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	300-600 984-1968	Altocumulus translucidus at a single level.	Cirrostratus not progressively invading the sky and not entirely covering it.	55.0 34.2	6.0 43
July 5, Sunday	23	9.6 49	610.4 24.03 813.8 813.8			85	Wind blowing from the north-east	Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas						Cumulus humilis or Cumulus fractus other than of bad weather, or both.	20–30%. 2/10–3/10. 2 oktas		Altocumulus translucidus at a single level.	Cirrostratus not progressively invading the sky and not entirely covering it.	65.0 40.4	7.1 45
	20	11.8 53	610.0 24.02 813.27 813.27			65	Wind blowing from the north-northwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas				7.2 45	15.8 60	Stratocumulus cumulogenitus.	40%. 4/10. 3 oktas	300-600 984-1968	Altocumulus translucidus at a single level.	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.	65.0 40.4	5.4 42
	16	14.7 58	609.4 23.99 812.47 812.47			55	Wind blowing from the west	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 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.	50%. 5/10. 4 oktas	600-1000 1968-3281	Altocumulus cumulogenitus (or cumulonimbogenitus).	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	65.0 40.4	5.7 42
	14	15.7 60	609.3 23.99 812.33 812.33		0.3 0.01 0.4 0.4	53	variable wind direction	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			60%. 6/10. 5 oktas				7.2 45	15.7 60	Stratocumulus cumulogenitus.	50%. 5/10. 4 oktas	600-1000 1968-3281	Altocumulus cumulogenitus (or cumulonimbogenitus).	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	71.0 44.1	6.0 43
	11	11.7 53	609.0 23.98 811.93 811.93		1.1 0.04 1.47 1.47	69	variable wind direction	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			60%. 6/10. 5 oktas						Stratocumulus cumulogenitus.	40%. 4/10. 3 oktas	100-200 328-656	No Altocumulus, Altostratus or Nimbostratus.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	65.0 40.4	6.1 43
	08	8.6 47	607.9 23.93 810.47 810.47			74	Wind blowing from the west-northwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			20–30%. 2/10–3/10. 2 oktas				7.2 45		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.	55.0 34.2	4.1 39