Mt. Washington
The tables below display average monthly climate and weather indicators in Mt. Washington New Hampshire.
Temperature by: Fahrenheit / Centigrade
| Mt. Washington Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature | 3.9 | 5.0 | 12.8 | 22.4 | 34.8 | 43.7 | 48.3 | 46.8 | 40.3 | 30.3 | 20.6 | 8.9 | 26.5 |
| Avg. Max Temperature | 12.3 | 13.1 | 20.1 | 28.7 | 41.0 | 49.4 | 53.6 | 51.8 | 45.9 | 36.4 | 27.3 | 17.1 | 33.1 |
| Avg. Min Temperature | -4.6 | -3.2 | 5.4 | 16.1 | 28.5 | 37.9 | 43.0 | 41.6 | 34.6 | 24.2 | 13.9 | 0.6 | 19.8 |
| Days with Max Temp of 90 F or Higher | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Days with Min Temp Below Freezing | 31.0 | 28.0 | 31.0 | 28.0 | 20.0 | 7.0 | 1.0 | 3.0 | 12.0 | 23.0 | 28.0 | 31.0 | 243 |
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| Mt. Washington Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days | 1894 | 1680 | 1618 | 1278 | 936 | 639 | 518 | 564 | 741 | 1076 | 1332 | 1739 | 14015 |
| Cooling Degree Days | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
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| Mt. Washington Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) | 7.9 | 8.6 | 9.0 | 8.2 | 7.5 | 7.8 | 7.1 | 8.2 | 7.4 | 7.2 | 10.4 | 9.7 | 99.0 |
| Days with Precipitation 0.01 inch or More | 19.0 | 18.0 | 19.0 | 18.0 | 17.0 | 16.0 | 16.0 | 16.0 | 15.0 | 15.0 | 19.0 | 20.0 | 209 |
| Monthly Snowfall (inches) | 40.8 | 40.7 | 43.4 | 31.6 | 11.7 | 1.3 | < 0.05 | 0.1 | 2.0 | 12.0 | 32.5 | 42.5 | 259 |
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| Other Mt. Washington Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed | 46.3 | 44.4 | 41.5 | 36.1 | 29.9 | 27.6 | 25.5 | 25.0 | 29.1 | 33.9 | 39.6 | 44.7 | 35.3 |
| Clear Days | 5.0 | 4.0 | 5.0 | 4.0 | 3.0 | 2.0 | 1.0 | 3.0 | 4.0 | 6.0 | 4.0 | 4.0 | 45.0 |
| Partly Cloudy Days | 5.0 | 5.0 | 5.0 | 6.0 | 7.0 | 7.0 | 7.0 | 8.0 | 6.0 | 6.0 | 5.0 | 5.0 | 74.0 |
| Cloudy Days | 21.0 | 19.0 | 21.0 | 20.0 | 20.0 | 21.0 | 22.0 | 20.0 | 19.0 | 19.0 | 21.0 | 22.0 | 246 |
| Percent of Possible Sunshine | 32.0 | 35.0 | 34.0 | 34.0 | 36.0 | 32.0 | 30.0 | 31.0 | 35.0 | 38.0 | 29.0 | 30.0 | 33.0 |
| Avg. Relative Humidity | 58.5 | 82.0 | 83.5 | 84.5 | 84.0 | 83.5 | 85.0 | 85.5 | 83.5 | 81.5 | 80.5 | 82.0 | 83.0 |
Weather information for other cities in New Hampshire