December weather forecast and climate
Storrs, CT

Weather in December

December, the first month of the winter, in Storrs, is also a wintry month, with average temperature ranging between min 28.2°F (-2.1°C) and max 39.2°F (4°C).

Temperature

In Storrs, the average high-temperature drops, from a frosty 49.1°F (9.5°C) in November, to a cold 39.2°F (4°C). In December, the average low-temperature is 28.2°F (-2.1°C).

Humidity

The average relative humidity in December is 78%.

Rainfall

In Storrs, during December, the rain falls for 8.3 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Storrs, during the entire year, the rain falls for 112.3 days and collects up to 9.33" (237mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Storrs, during December, snow falls for 4.1 days and regularly aggregates up to 0.63" (16mm) of snow. In Storrs, Connecticut, during the entire year, snow falls for 21.5 days, and aggregates up to 3.15" (80mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9.2h of daylight.

Sunshine

The month with the least sunshine in Storrs is December, with an average of 4.7h of sunshine.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Storrs, Connecticut. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in December in Storrs?

In Storrs, Connecticut, the average relative humidity in December is 78%.

How much does it rain in Storrs in December?

In December, the rain falls for 8.3 days. Throughout December, 0.98" (25mm) of precipitation is accumulated.

How much does it snow in Storrs in December?

In December, it is snowing for 4.1 days. Throughout December, 0.63" (16mm) of snow is accumulated.

What is the month with the shortest days in Storrs?

December has the shortest days of the year in Storrs, Connecticut, with an average of 9.2h of daylight.

What is the average length of the day in December in Storrs?

The average length of the day in December in Storrs is 9.2h.

What is the month with the least sunshine in Storrs?

December has the least sunshine of the year in Storrs, with an average of 4.7h of sunshine.

How long on average sun shines in December in Storrs?

In Storrs, Connecticut, the average sunshine in December is 4.7h.

What are the months with the lowest UV index in Storrs?

Months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.

How high is the UV index in December in Storrs?

In December, the average daily maximum UV index in Storrs, Connecticut, is 2. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to the UV radiation.

Average temperature in December
Storrs, CT

Average temperature in December - Storrs, CT
  • Average high temperature in December: 39.2°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 28.2°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

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Average pressure in December
Storrs, CT

Average pressure in December - Storrs, CT
  • Average pressure in December: 30.05"

The month with the highest atmospheric pressure is November (30.08").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in December
Storrs, CT

Average wind speed in December - Storrs, CT
  • Average wind speed in December: 8.4mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in December
Storrs, CT

Average humidity in December - Storrs, CT
  • Average humidity in December: 78%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in December
Storrs, CT

Average rainfall in December - Storrs, CT
  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is July (1.14").
The driest month (with the least rainfall) is September (0.39").

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Average rainfall days in December
Storrs, CT

Average rainfall days in December - Storrs, CT
  • Average rainfall days in December: 8.3 days

The month with the highest number of rainy days is July (13.4 days).
The month with the least rainy days is January (5.6 days).

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Average snowfall in December
Storrs, CT

Average snowfall in December - Storrs, CT
  • Average snowfall in December: 0.63"

The month with the highest snowfall is March (0.94").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Storrs, CT

Average snowfall days in December - Storrs, CT
  • Average snowfall days in December: 4.1 days

The month with the highest number of snowfall days is February (5.4 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Storrs, CT

Average daylight in December / Average sunshine in December - Storrs, CT
  • Average daylight in December: 9.2h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in December: 4.7h

The month with the most sunshine is August (Average sunshine: 10.4h).
The month with the least sunshine is December (Average sunshine: 4.7h).

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Average sunshine days in December
Storrs, CT

Average sunshine days in December - Storrs, CT
  • Average sunshine days in December: 19.2 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (14.9 days).

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Average UV index in December
Storrs, CT

Average UV index in December - Storrs, CT
  • Average UV index in December: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in December
Storrs, CT

Average cloud cover in December - Storrs, CT
  • Average cloud cover in December: 48

Months with the most cloud cover are February, March, May and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in December
Storrs, CT

Average visibility in December - Storrs, CT
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, October, November and December (6mi).
Months with the lowest visibility are May, June, July, August and September (5mi).

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