December weather forecastFitzwilliam, NH
December
Weather in December
December, the first month of the winter in Fitzwilliam, is also a wintry month, with an average temperature varying between 23°F (-5°C) and 33.8°F (1°C).Temperature
Welcoming December, Fitzwilliam observes a shift in the average high-temperature, falling from November's chilly 44.6°F (7°C) to a wintry 33.8°F (1°C). Throughout the nights in December, Fitzwilliam experiences an average low-temperature of 23°F (-5°C).Humidity
In December, the average relative humidity in Fitzwilliam is 82%.Rainfall
In Fitzwilliam, New Hampshire, during December, the rain falls for 9.7 days and regularly aggregates up to 3.07" (78mm) of precipitation. Throughout the year, in Fitzwilliam, there are 149.5 rainfall days, and 32.13" (816mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Fitzwilliam, New Hampshire, in December, during 9.8 snowfall days, 6.5" (165mm) of snow is typically accumulated. Throughout the year, in Fitzwilliam, there are 54.2 snowfall days, and 38.27" (972mm) of snow is accumulated.Daylight
December has the shortest days of the year in Fitzwilliam, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:00 am and sunset at 4:15 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:24 pm EST.
Sunshine
In Fitzwilliam, the average sunshine in December is 4.3h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Fitzwilliam, NH
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in December: 23°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in December
Fitzwilliam, NH
- Average pressure in December: 30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Fitzwilliam, NH
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Fitzwilliam, NH
- Average humidity in December: 82%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Fitzwilliam, NH
- Average rainfall in December: 3.07"
The wettest month (with the highest rainfall) is October (3.35").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in December
Fitzwilliam, NH
- Average rainfall days in December: 9.7 days
The months with the highest number of rainy days are May, June and August (15.8 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in December
Fitzwilliam, NH
- Average snowfall in December: 6.5"
The month with the highest snowfall is February (9.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Fitzwilliam, NH
- Average snowfall days in December: 9.8 days
The month with the highest number of snowfall days is February (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Fitzwilliam, NH
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in December
Fitzwilliam, NH
- Average sunshine days in December: 15.2 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is March (11.7 days).
Average UV index in December
Fitzwilliam, NH
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Fitzwilliam, NH
- Average cloud cover in December: 53
The months with the most cloud cover are February and March (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in December
Fitzwilliam, NH
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
