Weather archive on Mount Washington (AWS)

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Date / Local time

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RRR

sss

2026
September 17,
Thursday

9.7

612.9

-0.4

100

Wind blowing from the west-southwest

Strong breeze

(13 m/s)

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.

less than 0.1

9.7

8.4

613.3

100

Wind blowing from the west

Strong breeze

(11 m/s)

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.

6.6

11.7

0.1

8.4

7.3

613.4

100

Wind blowing from the west

Fresh breeze

(10 m/s)

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.

0.1

7.3

6.8

613.9

-0.3

Wind blowing from the west-northwest

Strong breeze

(11 m/s)

100%.

Fog or ice fog.

Fog or ice fog or thick haze.

Cloud covering more than 1/2 of the sky throughout the appropriate period.

6.7

11.7

Stratocumulus cumulogenitus.

70 – 80%.

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.

71.0

6.6

September 16,
Wednesday

8.1

614.2

-0.1

Wind blowing from the west-northwest

Strong breeze

(13 m/s)

90 or more, but not 100%

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.

Stratus nebulosus or Stratus fractus other than of bad weather, or both.

50%.

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 (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

7.9

8.9

614.3

0.4

100

Wind blowing from the west-northwest

Near gale

(15 m/s)

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.

6.7

11.7

less than 0.1

8.9

9.0

613.9

-0.3

Wind blowing from the west-northwest

Strong breeze

(11 m/s)

70 – 80%.

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.

Stratocumulus other than Stratocumulus cumulogenitus.

50%.

No Altocumulus, Altostratus or Nimbostratus.

Cirrus fibratus, sometimes uncinus, not progressively invading the sky.

71.0

8.8

11.2

614.2

100

Wind blowing from the west-northwest

Strong breeze

(13 m/s)

Sky obscured by fog and/or other meteorological phenomena.

Fog or ice fog, sky invisible, no appreciable change during the preceding hour.

Drizzle.

Fog or ice fog or thick haze.

6.6

11.7

less than 0.1

11.2

Trace of precipitation

11.2

614.2

0.6

100

Wind blowing from the west-northwest

Fresh breeze

(9 m/s)

90 or more, but not 100%

Fog or ice fog, sky visible (has become thinner during the preceding hour).

Drizzle.

Fog or ice fog or thick haze.

Stratus nebulosus or Stratus fractus other than of bad weather, or both.

90 or more, but not 100%

Less than 50

No Altocumulus, Altostratus or Nimbostratus.

No Cirrus, Cirrocumulus or Cirrostratus.

0.1

11.2