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
Chester in December experiences a gentle temperature dip, with average high-temperatures reducing from a cool 50.7°F (10.4°C) in November to an icy 41.9°F (5.5°C). Throughout December nights, Chester experiences a consistent temperature average of 32.4°F (0.2°C).Humidity
In December, the average relative humidity is 75%.Rainfall
December is the month with the most rainfall. Rain falls for 13 days and accumulates 3.66" (93mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Chester, Connecticut, in December, during 4.4 snowfall days, 1.34" (34mm) of snow is typically accumulated. Throughout the year, there are 24.2 snowfall days, and 9.53" (242mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:57 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:30 pm EST.
Sunshine
The months with the least sunshine are February and December, with an average of 4.8h 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. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 2 during December leads to these advisories:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Chester in December?
What is the average humidity in December in Chester?
What is the rainiest month?
How many days does it rain in December?
How much does it snow in Chester in December?
What is the month with the shortest days?
What is the average length of the day in December in Chester?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December in Chester?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Chester, CT
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in December: 32.4°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 (25.5°F).
Average pressure in December
Chester, CT
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Chester, CT
- Average wind speed in December: 10.6mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in December
Chester, CT
- Average humidity in December: 75%
The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Chester, CT
- Average rainfall in December: 3.66"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Chester, CT
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9 days).
Average snowfall in December
Chester, CT
- Average snowfall in December: 1.34"
The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Chester, CT
- Average snowfall days in December: 4.4 days
The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Chester, CT
- Average daylight in December: 9h and 1min
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 12min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in December
Chester, CT
- Average sunshine days in December: 14.8 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in December
Chester, 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
Chester, CT
- Average cloud cover in December: 48
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Chester, 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).
Chester, Connecticut, USA
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