December weather forecastEpsom, NH
December
Weather in December
December, the first month of the winter in Epsom, is still a cold month, with temperature in the range of an average low of 24.1°F (-4.4°C) and an average high of 34.7°F (1.5°C).Temperature
December shows a mild decline in the average high-temperature, falling from November's frosty 45.5°F (7.5°C) to a cold 34.7°F (1.5°C). Epsom experiences a consistent average temperature of 24.1°F (-4.4°C) throughout the nights in December.Humidity
In December, the average relative humidity is 80%.Rainfall
In December, the rain falls for 10.2 days. Throughout December, 3.11" (79mm) of precipitation is accumulated. In Epsom, during the entire year, the rain falls for 146.3 days and collects up to 29.92" (760mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Epsom, New Hampshire, in December, during 8 snowfall days, 6.54" (166mm) of snow is typically accumulated. In Epsom, during the entire year, snow falls for 44.9 days and aggregates up to 32.95" (837mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 6:58 am and sunset at 4:11 pm. On the last day of December, sunrise is at 7:17 am and sunset at 4:20 pm EST.
Sunshine
In December, the average sunshine is 4.8h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Epsom, NH
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in December: 24.1°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).
Average pressure in December
Epsom, NH
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Epsom, NH
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in December
Epsom, NH
- Average humidity in December: 80%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Epsom, NH
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is October (3.27").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in December
Epsom, NH
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Epsom, NH
- Average snowfall in December: 6.54"
The month with the highest snowfall is February (8.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Epsom, NH
- Average snowfall days in December: 8 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Epsom, NH
- Average daylight in December: 9h and 0min
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 0min).
- Average sunshine in December: 4h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Epsom, NH
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is June (13 days).
Average UV index in December
Epsom, NH
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Epsom, NH
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Epsom, NH
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
