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
December involves a decrease in temperature, down from a chilly 46.6°F (8.1°C) in November to an icy 36.3°F (2.4°C). Riverton's nighttime temperature during December is consistently averaged at a subzero cold 25.7°F (-3.5°C).Humidity
In December, the average relative humidity in Riverton is 80%.Rainfall
In Riverton, in December, during 8.4 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. In Riverton, during the entire year, the rain falls for 134.4 days and collects up to 15.67" (398mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Riverton, in December, during 6 snowfall days, 1.3" (33mm) of snow is typically accumulated. In Riverton, during the entire year, snow falls for 33.4 days and aggregates up to 7.32" (186mm) of snow.Daylight
December has the shortest days of the year in Riverton, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:01 am and sunset at 4:21 pm. On the last day of December, in Riverton, sunrise is at 7:19 am and sunset at 4:30 pm EST.
Sunshine
The average sunshine in December in Riverton is 4.5h.UV index
The months with the lowest UV index in Riverton are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
How cold is it in Riverton in December?
What is the average humidity in December in Riverton?
How many days does it rain in December in Riverton?
How many days does it snow in December in Riverton?
What is the month with the shortest days in Riverton?
What is the average length of the day in December in Riverton?
When is the sunrise / sunset in December in Riverton?
How many hours of sunshine does Riverton have in December?
What is the month with the lowest UV index in Riverton?
How high is the UV index in December in Riverton?
Average temperature in December
Riverton, CT
- Average high temperature in December: 36.3°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in December
Riverton, 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
Riverton, CT
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
Riverton, CT
- Average humidity in December: 80%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Riverton, CT
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is July (1.85").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in December
Riverton, CT
- Average rainfall days in December: 8.4 days
The months with the highest number of rainy days are May and July (15.3 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in December
Riverton, CT
- Average snowfall in December: 1.3"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Riverton, CT
- Average snowfall days in December: 6 days
The month with the highest number of snowfall days is February (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Riverton, CT
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Riverton, CT
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is January (19.4 days).
The months with the least sunshine days are April and May (13.1 days).
Average UV index in December
Riverton, CT
- Average UV index in December: 2
The month with the highest UV index is June (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
Riverton, CT
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in December
Riverton, CT
- Average visibility in December: 6mi
The months with the highest visibility are January, April, November and December (6mi).
The months with the lowest visibility are February, March, May, June, July, August, September and October (5mi).
Riverton, Connecticut, USA
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