December weather forecastBethel, CT
December
Weather in December
December, the first month of the winter in Bethel, is also a wintry month, with temperature in the range of an average low of 29.3°F (-1.5°C) and an average high of 39.6°F (4.2°C).Temperature
December indicates a shift in the average high-temperature, from November's frosty 48.7°F (9.3°C) to a wintry 39.6°F (4.2°C). Bethel registers a consistent average low-temperature of 29.3°F (-1.5°C) during December.Humidity
In December, the average relative humidity is 78%.Rainfall
In Bethel, in December, it is raining for 8.1 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, there are 123.7 rainfall days, and 11.65" (296mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Bethel, during December, snow falls for 4.1 days and regularly aggregates up to 0.55" (14mm) of snow. In Bethel, during the entire year, snow falls for 20.5 days and aggregates up to 2.68" (68mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:00 am and sunset at 4:25 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:34 pm EST.
Sunshine
In Bethel, the average sunshine in December is 4.7h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bethel, CT
- Average high temperature in December: 39.6°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in December
Bethel, 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
Bethel, CT
- Average wind speed in December: 7.8mph
The windiest months (with the highest average wind speed) are January and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Bethel, CT
- Average humidity in December: 78%
The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Bethel, CT
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is July (1.57").
The driest months (with the least rainfall) are January and February (0.55").
Average rainfall days in December
Bethel, CT
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in December
Bethel, CT
- Average snowfall in December: 0.55"
The months with the highest snowfall are January and February (0.75").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Bethel, CT
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Bethel, CT
- Average daylight in December: 9h and 12min
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 42min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Bethel, CT
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in December
Bethel, CT
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Bethel, CT
- Average cloud cover in December: 50
The months with the most cloud cover are February, March and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Bethel, CT
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, July, August, September, October, November and December (6mi).
The months with the lowest visibility are May and June (5mi).
