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 May 11, Monday | 17 | -4.0 25 | 602.8 23.73 803.67 803.67 | -0.6 -0.02 -0.8 -0.8 | 87 | Wind blowing from the west-northwest | Fresh breeze (10 m/s) (36 km/h) (22 mph) (19 knots) (5 Bft) | 100%. 10/10. 8 oktas | Snow shower(s), slight. | Shower(s). | 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 | Altocumulus cumulogenitus (or cumulonimbogenitus). | No Cirrus, Cirrocumulus or Cirrostratus. | 71.0 44.1 | -5.8 22 | ||||||||||||
14 | -2.8 27 | 603.4 23.76 804.47 804.47 | 66 | Wind blowing from the 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 | Precipitation within sight, reaching the ground or the surface of the sea, but distant, i.e. estimated to be more than 5 km from the station. | Fog or ice fog or thick haze. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | -5.8 22 | -2.7 27 | Stratocumulus cumulogenitus. | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 71.0 44.1 | -8.4 17 | ||||||||||||
11 | -3.9 25 | 603.4 23.76 804.47 804.47 | 0.8 0.03 1.07 1.07 | 77 | Wind blowing from the 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. | 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 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 71.0 44.1 | -7.4 19 | |||||||||||||
08 | -5.5 22 | 602.6 23.72 803.4 803.4 | 100 | Wind blowing from the west-northwest | Near gale (14 m/s) (50 km/h) (31 mile/hour) (27 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. | Fog, depositing rime, sky invisible. | Fog or ice fog or thick haze. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | -5.8 22 | 2.2 36 | less than 0.1 less than 0.06 | -5.5 22 | ||||||||||||||||
07 | -5.5 22 | 602.6 23.72 803.4 803.4 | 100 | Wind blowing from the west-northwest | Near gale (14 m/s) (50 km/h) (31 mile/hour) (27 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. | Fog, depositing rime, sky invisible. | Fog or ice fog or thick haze. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | -5.8 22 | 2.2 36 | less than 0.1 less than 0.06 | -5.5 22 | ||||||||||||||||
05 | -5.5 22 | 602.1 23.7 802.73 802.73 | 100 | Wind blowing from the west-northwest | Near gale (16 m/s) (58 km/h) (36 miles/hour) (31 mile/hour) (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. | Fog, depositing rime, sky invisible. | Fog or ice fog or thick haze. | Fog or ice fog or thick haze. | 0.1 0.06 | -5.5 22 | ||||||||||||||||||
02 | -5.5 22 | 602.1 23.7 802.73 802.73 | -0.9 -0.04 -1.2 -1.2 | 100 | Wind blowing from the west-northwest | Near gale (16 m/s) (58 km/h) (36 miles/hour) (31 mile/hour) (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. | Fog, depositing rime, sky invisible. | Fog or ice fog or thick haze. | Fog or ice fog or thick haze. | 0.1 0.06 | -5.5 22 | |||||||||||||||||
| May 10, Sunday | 23 | -3.5 26 | 603.0 23.74 803.93 803.93 | 0.3 0.01 0.4 0.4 | 77 | Wind blowing from the west-northwest | Gale (18 m/s) (65 km/h) (40 miles/hour) (35 knots) (8 Bft) | 40%. 4/10. 3 oktas | Clouds generally dissolving or becoming less developed. | Shower(s). | Fog or ice fog or thick haze. | 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 | Altostratus opacus 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 | -7.0 19 | |||||||||||
20 | 0.4 33 | 602.7 23.73 803.53 803.53 | 0.7 0.03 0.93 0.93 | 95 | Wind blowing from the west | Strong breeze (13 m/s) (47 km/h) (29 miles/hour) (25 knots) (6 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | Fog or ice fog in patches. | Shower(s). | Fog or ice fog or thick haze. | -0.2 32 | 2.2 36 | Stratocumulus cumulogenitus. | 70 – 80%. 7/10 – 8/10. 6 oktas | No Altocumulus, Altostratus or Nimbostratus. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 71.0 44.1 | -0.3 31 | 0.3 0.01 | 6 | |||||||||
17 | 1.8 35 | 602.0 23.7 802.6 802.6 | 100 | Wind blowing from the west-southwest | Near gale (16 m/s) (58 km/h) (36 miles/hour) (31 mile/hour) (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. | Fog or ice fog, sky invisible, no appreciable change during the preceding hour. | Shower(s). | Fog or ice fog or thick haze. | less than 0.1 less than 0.06 | 1.8 35 | ||||||||||||||||||