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 August 26, Wednesday | 14 | 12.2 54 | 609.1 23.98 812.07 812.07 | 0.1 0 0.13 0.13 | 72 | variable wind direction | 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 | 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. | 5.6 42 | 14.7 58 | 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 | Altocumulus translucidus at a single level. | No Cirrus, Cirrocumulus or Cirrostratus. | 0.8 0.5 | 7.3 45 | |||||||||
11 | 11.2 52 | 609.0 23.98 811.93 811.93 | 0.8 0.03 1.07 1.07 | 86 | variable wind direction | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 60%. 6/10. 5 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. | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Altocumulus translucidus at a single level. | No Cirrus, Cirrocumulus or Cirrostratus. | 0.8 0.5 | 8.9 48 | |||||||||||||
08 | 7.6 46 | 608.2 23.94 810.87 810.87 | 0.8 0.03 1.07 1.07 | 83 | Wind blowing from the north-west | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 20–30%. 2/10–3/10. 2 oktas | State of sky on the whole unchanged. | 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. | 5.6 42 | 9.2 49 | Stratus nebulosus or Stratus fractus other than of bad weather, or both. | 70 – 80%. 7/10 – 8/10. 6 oktas | Altostratus translucidus. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 71.0 44.1 | 4.9 41 | |||||||||||
05 | 6.4 44 | 607.4 23.91 809.8 809.8 | 0.2 0.01 0.27 0.27 | 100 | Wind blowing from the west-northwest | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 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, 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. | less than 0.1 less than 0.06 | 6.4 44 | |||||||||||||||||
02 | 6.3 43 | 607.2 23.91 809.53 809.53 | 0.8 0.03 1.07 1.07 | 100 | Wind blowing from the west-northwest | Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 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. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | 5.2 41 | 9.2 49 | less than 0.1 less than 0.06 | 6.3 43 | |||||||||||||||
| August 25, Tuesday | 23 | 6.6 44 | 606.4 23.87 808.47 808.47 | 100 | Wind blowing from the north-west | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 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, 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 throughout the appropriate period. | less than 0.1 less than 0.06 | 6.6 44 | |||||||||||||||||
20 | 6.6 44 | 606.4 23.87 808.47 808.47 | 1.0 0.04 1.33 1.33 | 100 | Wind blowing from the north-west | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 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, 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 throughout the appropriate period. | less than 0.1 less than 0.06 | 6.6 44 | |||||||||||||||||
17 | 7.8 46 | 605.4 23.83 807.13 807.13 | 0.1 0 0.13 0.13 | 100 | Wind blowing from the west-northwest | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 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, has begun or has become thicker during the preceding hour. | Shower(s). | Fog or ice fog or thick haze. | 0.1 0.06 | 7.8 46 | |||||||||||||||||
14 | 7.4 45 | 605.3 23.83 807 807 | -0.1 -0 -0.13 -0.13 | 99 | Wind blowing from the north-west | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 100%. 10/10. 8 oktas | Rain shower(s), slight. | Shower(s). | Fog or ice fog or thick haze. | 5.2 41 | 9.2 49 | Stratocumulus other than Stratocumulus cumulogenitus. | 100%. 10/10. 8 oktas | Less than 50 Less than 50 | 0.2 0.1 | 7.2 45 | Trace of precipitation Trace of precipitation | 6 | ||||||||||