Weather archive on Mount Washington (AWS)

To receive explanations, hover over the appropriate heading

Date / Local time

ff10

ff3

RRR

sss

2026
October 3,
Saturday

0.2

607.6

100

Wind blowing from the north-west

Strong gale

(21 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.

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

70 – 80%.

Less than 50

No Altocumulus, Altostratus or Nimbostratus.

No Cirrus, Cirrocumulus or Cirrostratus.

0.1

0.2

0.6

606.6

1.1

Wind blowing from the north-northwest

Gale

(20 m/s)

90 or more, but not 100%

Clouds generally forming or developing.

Fog or ice fog or thick haze.

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

0.4

11.5

Stratocumulus cumulogenitus.

70 – 80%.

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

-2.0

October 2,
Friday

1.9

605.5

Wind blowing from the north-northwest

Gale

(19 m/s)

90 or more, but not 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.

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.

Cirrostratus not progressively invading the sky and not entirely covering it.

71.0

-3.5

1.9

605.5

1.5

Wind blowing from the north-northwest

Gale

(19 m/s)

90 or more, but not 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.

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.

Cirrostratus not progressively invading the sky and not entirely covering it.

71.0

-3.5

7.3

604.0

100

Wind blowing from the west-northwest

Strong gale

(21 m/s)

Sky obscured by fog and/or other meteorological phenomena.

Drizzle, not freezing, continuous, slight at time of observation.

Shower(s).

Drizzle.

0.1

7.3

8.4

603.8

-0.7

100

Wind blowing from the west-northwest

Near gale

(14 m/s)

Sky obscured by fog and/or other meteorological phenomena.

Rain shower(s), slight.

Shower(s).

Fog or ice fog or thick haze.

8.3

11.5

0.1

8.4

2.0

11.1

604.5

-0.1

100

Wind blowing from the west

Storm

(25 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

11.1

10.6

604.6

100

Wind blowing from the west

Violent storm

(29 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.

9.1

10.7

less than 0.1

10.6

0.8

10.6

604.6

-0.4

100

Wind blowing from the west

Violent storm

(29 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.

9.1

10.7

less than 0.1

10.6

0.8

10.9

605.0

100

Wind blowing from the west

Storm

(27 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.

less than 0.1

10.9