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
With December's onset, the weather shows a temperature decrease, transitioning from a chilly 49.6°F (9.8°C) in November to an icy 40.3°F (4.6°C). During the December nights, Georgetown's temperature maintains an average close to the daytime highs, settling at a subzero cold 31.3°F (-0.4°C).Humidity
In Georgetown, the average relative humidity in December is 76%.Rainfall
December is the month with the most rainfall. Rain falls for 12.3 days and accumulates 4.21" (107mm) of precipitation.Snowfall
January through May, November and December are months with snowfall in Georgetown, Connecticut. In Georgetown, during December, snow falls for 5.1 days and regularly aggregates up to 2.68" (68mm) of snow. Throughout the year, there are 30.3 snowfall days, and 13.19" (335mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Georgetown, Connecticut.On the first day of December in Georgetown, sunrise is at 7:00 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:34 pm EST.
Sunshine
In Georgetown, the average sunshine in December is 4.9h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Georgetown. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Georgetown in December?
What is the average humidity in December in Georgetown?
What is the rainiest month in Georgetown?
How many days does it rain in December in Georgetown?
How much does it snow in Georgetown in December?
What is the month with the shortest days in Georgetown?
What is the average length of the day in December in Georgetown?
When is the sunrise / sunset in December in Georgetown?
How long on average sun shines in December in Georgetown?
What are the months with the lowest UV index in Georgetown?
How high is the UV index in December in Georgetown?
Average temperature in December
Georgetown, CT
- Average high temperature in December: 40.3°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in December: 31.3°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in December
Georgetown, CT
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Georgetown, CT
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in December
Georgetown, CT
- Average humidity in December: 76%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Georgetown, CT
- Average rainfall in December: 4.21"
The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is January (2.52").
Average rainfall days in December
Georgetown, CT
- Average rainfall days in December: 12.3 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in December
Georgetown, CT
- Average snowfall in December: 2.68"
The month with the highest snowfall is March (3.54").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Georgetown, CT
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is February (9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Georgetown, CT
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Georgetown, CT
- Average sunshine days in December: 14.4 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in December
Georgetown, CT
- 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
Georgetown, CT
- Average cloud cover in December: 48
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Georgetown, CT
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Georgetown, Connecticut, USA
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