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
A moderate decline in the average high-temperature is seen during December, decreasing from a fresh 50.7°F (10.4°C) in November to an icy 41.7°F (5.4°C). In Trumbull, the December nights are characterized by an average low-temperature of 32.9°F (0.5°C), a minor dip from daytime readings.Humidity
In December, the average relative humidity in Trumbull is 75%.Rainfall
December is the month with the most rainfall. Rain falls for 12.8 days and accumulates 4.13" (105mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Trumbull, Connecticut, during December, snow falls for 3.7 days and regularly aggregates up to 1.65" (42mm) of snow. In Trumbull, during the entire year, snow falls for 24.4 days and aggregates up to 9.41" (239mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 6:59 am and sunset at 4:24 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:33 pm EST.
Sunshine
In December, the average sunshine in Trumbull is 4.9h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Around midday, solar radiation is most harmful; hence, exposure should be limited. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
How cold does it get in Trumbull in December?
What is the average humidity in December in Trumbull?
What is the rainiest month in Trumbull?
How many days does it rain in December in Trumbull?
How much does it snow in Trumbull in December?
What is the month with the shortest days in Trumbull?
What is the average length of the day in December in Trumbull?
What time are sunrise and sunset in December in Trumbull?
How many hours of sunshine does Trumbull have in December?
What is the month with the lowest UV index in Trumbull?
What is the UV index intensity in December in Trumbull?
Average temperature in December
Trumbull, CT
- Average high temperature in December: 41.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in December
Trumbull, 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
Trumbull, CT
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Trumbull, CT
- Average humidity in December: 75%
The months with the highest relative humidity are February, May and June (76%).
The months with the lowest relative humidity are April and November (72%).
Average rainfall in December
Trumbull, CT
- Average rainfall in December: 4.13"
The wettest month (with the highest rainfall) is December (4.13").
The driest month (with the least rainfall) is September (2.4").
Average rainfall days in December
Trumbull, CT
- Average rainfall days in December: 12.8 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in December
Trumbull, CT
- Average snowfall in December: 1.65"
The month with the highest snowfall is February (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Trumbull, CT
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Trumbull, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Trumbull, CT
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is January (17 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in December
Trumbull, 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
Trumbull, 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
Trumbull, 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).
Trumbull, Connecticut, USA
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