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 | |
| 2025 January 18, Saturday | 22 | -6.2 21 | 594.3 23.4 792.34 792.34 | -0.5 -0.02 -0.67 -0.67 | 100 | Wind blowing from the south-west | Strong breeze (13 m/s) (47 km/h) (29 miles/hour) (25 knots) (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. | Continuous fall of snowflakes, slight at time of observation. | Snow and/or other types of solid precipitation | Fog or ice fog or thick haze. | less than 0.1 less than 0.06 | -6.2 21 | ||||||||||||||||
19 | -6.5 20 | 594.8 23.42 793 793 | -0.7 -0.03 -0.93 -0.93 | 100 | Wind blowing from the south-west | 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. | Continuous fall of snowflakes, slight at time of observation. Depth of newly fallen snow is 1 cm. 0.4 inches. | Snow and/or other types of solid precipitation | Fog or ice fog or thick haze. | -12.8 9 | -4.9 23 | 0.1 0.06 | -6.5 20 | 0.5 0.02 | 6 | |||||||||||||
16 | -8.3 17 | 595.5 23.44 793.93 793.93 | -0.3 -0.01 -0.4 -0.4 | 100 | Wind blowing from the south-west | Gale (20 m/s) (72 km/h) (45 miles/hour) (39 knots) (8 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. | Continuous fall of snowflakes, slight at time of observation. | Snow and/or other types of solid precipitation | Fog or ice fog or thick haze. | less than 0.1 less than 0.06 | -8.3 17 | |||||||||||||||||
13 | -8.4 17 | 595.8 23.46 794.33 794.33 | -2.8 -0.11 -3.73 -3.73 | 86 | Wind blowing from the south-west | Strong gale (21 m/s) (76 km/h) (47 miles/hour) (41 mile/hour) (9 Bft) | 100%. 10/10. 8 oktas | Fog or ice fog, sky visible, has begun or has become thicker during the preceding hour. Depth of newly fallen snow is 1 cm. 0.4 inches. | Shower(s). | Fog or ice fog or thick haze. | -14.6 6 | -4.9 23 | Stratocumulus other than Stratocumulus cumulogenitus. | 70 – 80%. 7/10 – 8/10. 6 oktas | Altostratus opacus or Nimbostratus. | 0.2 0.1 | -10.4 13 | 0.8 0.03 | 6 | ||||||||||
10 | -4.9 23 | 598.6 23.57 798.07 798.07 | 1.0 0.04 1.33 1.33 | 33 | Wind blowing from the south-west | Gale (20 m/s) (72 km/h) (45 miles/hour) (39 knots) (8 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 other than Stratocumulus cumulogenitus. | 50%. 5/10. 4 oktas | Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels. | 71.0 44.1 | -18.8 -2 | ||||||||||||||
07 | -7.2 19 | 597.6 23.53 796.73 796.73 | -0.3 -0.01 -0.4 -0.4 | 47 | Wind blowing from the west-southwest | Near gale (14 m/s) (50 km/h) (31 mile/hour) (27 knots) (7 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Shower(s) of snow, or of rain and snow. Depth of newly fallen snow is 1 cm. 0.4 inches. | Shower(s). | Fog or ice fog or thick haze. | -14.4 6 | -7.2 19 | Stratocumulus other than Stratocumulus cumulogenitus. | 40%. 4/10. 3 oktas | Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels. | 71.0 44.1 | -16.8 2 | 0.3 0.01 | 6 | ||||||||||
04 | -9.1 16 | 597.9 23.54 797.13 797.13 | 0.3 0.01 0.4 0.4 | 44 | Wind blowing from the west-southwest | Strong gale (21 m/s) (76 km/h) (47 miles/hour) (41 mile/hour) (9 Bft) | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | State of sky on the whole unchanged. | Fog or ice fog or thick haze. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | 71.0 44.1 | -19.2 -3 | |||||||||||||||||
01 | -12.7 9 | 597.6 23.53 796.73 796.73 | 0.0 0 0 0 | 83 | Wind blowing from the west-southwest | Strong breeze (12 m/s) (43 km/h) (27 miles/hour) (23 knots) (6 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | Fog or ice fog in patches. | Snow and/or other types of solid precipitation | Fog or ice fog or thick haze. | -12.6 9 | Stratus nebulosus or Stratus fractus other than of bad weather, or both. | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Altostratus opacus or Nimbostratus. | 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 | -15.0 5 | Trace of precipitation Trace of precipitation | 6 | ||||||||||
| January 17, Friday | 22 | -13.7 7 | 597.6 23.53 796.73 796.73 | 0.4 0.02 0.53 0.53 | 100 | Wind blowing from the west-southwest | 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. | Snow and/or other types of solid precipitation | Fog or ice fog or thick haze. | 0.1 0.06 | -13.7 7 | ||||||||||||||||