Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
In December, the average high-temperature goes from a cold 40.1°F (4.5°C) in November to a subzero cold 28.6°F (-1.9°C). During December, Willimantic's temperature falls to a steady low-temperature average of 18.3°F (-7.6°C).Humidity
In December, the average relative humidity is 84%.Rainfall
In December, in Willimantic, the rain falls for 9.6 days. Throughout December, 1.69" (43mm) of precipitation is accumulated. In Willimantic, during the entire year, the rain falls for 152.4 days and collects up to 20.83" (529mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Willimantic, in December, snow falls for 12.8 days, with typically accumulated 4.61" (117mm) of snow. Throughout the year, there are 71.8 snowfall days, and 27.28" (693mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of December, sunrise is at 6:57 am and sunset at 3:56 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:05 pm EST.
Sunshine
The average sunshine in December is 4.1h.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 reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Willimantic in December?
What is the average humidity in December in Willimantic?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Willimantic have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Willimantic, ME
- Average high temperature in December: 28.6°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in December: 18.3°F
The month with the highest average low temperature is July (55.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in December
Willimantic, ME
- Average pressure in December: 30.01"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Willimantic, ME
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Willimantic, ME
- Average humidity in December: 84%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is May (76%).
Average rainfall in December
Willimantic, ME
- Average rainfall in December: 1.69"
The wettest month (with the highest rainfall) is April (2.24").
The driest months (with the least rainfall) are February and March (1.22").
Average rainfall days in December
Willimantic, ME
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is June (16.7 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in December
Willimantic, ME
- Average snowfall in December: 4.61"
The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Willimantic, ME
- Average snowfall days in December: 12.8 days
The month with the highest number of snowfall days is February (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Willimantic, ME
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in December
Willimantic, ME
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is April (10.4 days).
Average UV index in December
Willimantic, ME
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Willimantic, ME
- Average cloud cover in December: 56
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 41).
Average visibility in December
Willimantic, ME
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).
Willimantic, Maine, USA
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