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
The onset of December in Waterbury brings a small change in high-temperatures, falling from a chilly 48.6°F (9.2°C) in November to a cold 38.7°F (3.7°C). An average temperature of 28°F (-2.2°C) marks the nights in Waterbury in December.Humidity
The average relative humidity in December in Waterbury, Connecticut, is 78%.Rainfall
December is the month with the most rainfall in Waterbury. Rain falls for 10.5 days and accumulates 3.78" (96mm) of precipitation.Snowfall
Months with snowfall in Waterbury are January through May, October through December. In Waterbury, in December, snow falls for 6.2 days, with typically accumulated 2.87" (73mm) of snow. In Waterbury, Connecticut, during the entire year, snow falls for 34.9 days and aggregates up to 20.35" (517mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Waterbury.On the first day of December, sunrise is at 6:59 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:32 pm EST.
Sunshine
The average sunshine in December is 4.7h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Waterbury, Connecticut. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a daily UV index of 2 turns into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
Is it cold in Waterbury during December?
What is the average humidity in December in Waterbury?
What is the rainiest month in Waterbury?
How many days does it rain in December in Waterbury?
How much does it snow in Waterbury in December?
What is the month with the shortest days in Waterbury?
How many hours of daylight does Waterbury have in December?
What time are sunrise and sunset in December in Waterbury?
How long on average sun shines in December in Waterbury?
What are the months with the lowest UV index in Waterbury?
What is the UV index intensity in December in Waterbury?
Average temperature in December
Waterbury, CT
- Average high temperature in December: 38.7°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in December: 28°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).
Average pressure in December
Waterbury, 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
Waterbury, CT
- Average wind speed in December: 7.9mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Waterbury, CT
- Average humidity in December: 78%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Waterbury, CT
- Average rainfall in December: 3.78"
The wettest month (with the highest rainfall) is December (3.78").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in December
Waterbury, CT
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Waterbury, CT
- Average snowfall in December: 2.87"
The month with the highest snowfall is February (5.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Waterbury, CT
- Average snowfall days in December: 6.2 days
The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Waterbury, 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 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Waterbury, CT
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is January (18.1 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in December
Waterbury, 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
Waterbury, CT
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Waterbury, CT
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).
Waterbury, Connecticut, USA
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