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 March 18, Wednesday | 22 | -17.0 1 | 602.8 23.73 803.67 803.67 | 0.1 0 0.13 0.13 | 69 | Wind blowing from the south-southwest | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft) | 100%. 10/10. 8 oktas | Stratus nebulosus or Stratus fractus other than of bad weather, or both. | 20–30%. 2/10–3/10. 2 oktas | 600-1000 1968-3281 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrostratus covering the whole sky. | 71.0 44.1 | -21.3 -6 | ||||||||||||||
19 | -18.3 -1 | 602.7 23.73 803.53 803.53 | 1.2 0.05 1.6 1.6 | 76 | Wind blowing from the south | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 40%. 4/10. 3 oktas | -24.5 -12 | -14.8 5 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 20–30%. 2/10–3/10. 2 oktas | 2000-2500 6562-8202 | Altostratus opacus or Nimbostratus. | 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 | -21.5 -7 | |||||||||||||
16 | -16.0 3 | 601.5 23.68 801.93 801.93 | 0.6 0.02 0.8 0.8 | 65 | Wind blowing from the south | 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 | No Stratocumulus, Stratus, Cumulus or Cumulonimbus. | 70 – 80%. 7/10 – 8/10. 6 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrus fibratus, sometimes uncinus, not progressively invading the sky. | 71.0 44.1 | -21.1 -6 | |||||||||||||||
13 | -16.4 2 | 600.9 23.66 801.13 801.13 | 0.6 0.02 0.8 0.8 | 30 | Wind blowing from the west-northwest | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 100%. 10/10. 8 oktas | Clouds generally forming or developing. | 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. | -24.5 -12 | -16.4 2 | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 20–30%. 2/10–3/10. 2 oktas | 300-600 984-1968 | Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus. | Cirrostratus covering the whole sky. | 71.0 44.1 | -30.0 -22 | ||||||||||
10 | -21.5 -7 | 600.3 23.63 800.33 800.33 | 2.5 0.1 3.33 3.33 | 72 | Wind blowing from the west-northwest | Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft) | 40%. 4/10. 3 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 other than Stratocumulus cumulogenitus. | 40%. 4/10. 3 oktas | 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 | -25.2 -13 | |||||||||||||
07 | -24.3 -12 | 597.8 23.54 797 797 | 2.4 0.09 3.2 3.2 | 100 | Wind blowing from the west-northwest | Violent storm (29 m/s) (104 km/h) (65 miles/hour) (56 knots) (11 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. Depth of newly fallen snow is 1 cm. 0.4 inches. | Shower(s). | Fog or ice fog or thick haze. | -24.5 -12 | 0.1 0.06 | -24.3 -12 | 0.3 0.01 | 6 | ||||||||||||||
04 | -23.2 -10 | 595.4 23.44 793.8 793.8 | 1.4 0.06 1.87 1.87 | 100 | Wind blowing from the west | Storm (25 m/s) (90 km/h) (56 miles/hour) (49 knots) (10 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. | Shower(s). | Fog or ice fog or thick haze. | 0.1 0.06 | -23.2 -10 | |||||||||||||||||
01 | -23.4 -10 | 594.0 23.39 791.94 791.94 | 1.1 0.04 1.47 1.47 | 100 | Wind blowing from the west | Storm (27 m/s) (97 km/h) (60 miles/hour) (52 knots) (10 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. | Shower(s). | Fog or ice fog or thick haze. | -23.4 -10 | less than 0.1 less than 0.06 | -23.4 -10 | 0.3 0.01 | 6 | ||||||||||||||
| March 17, Tuesday | 22 | -22.8 -9 | 592.9 23.34 790.47 790.47 | 1.6 0.06 2.13 2.13 | 100 | Wind blowing from the west-northwest | Violent storm (31 m/s) (112 km/h) (69 miles/hour) (60 knots) (11 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. | Snow shower(s), slight. | Shower(s). | Fog or ice fog or thick haze. | less than 0.1 less than 0.06 | -22.8 -9 | ||||||||||||||||