December weather forecastSalmon Brook, CT
December
Weather in December
The first month of the winter, December, is also an icy month in Salmon Brook, Connecticut, with an average temperature varying between 25.5°F (-3.6°C) and 36.7°F (2.6°C).Temperature
December's arrival corresponds with a decrease in average high-temperatures, from November's chilly 46.8°F (8.2°C) to a cold 36.7°F (2.6°C). Salmon Brook experiences an average low-temperature of 25.5°F (-3.6°C) in month of December.Humidity
The average relative humidity in December in Salmon Brook is 80%.Rainfall
The month with the most rainfall in Salmon Brook is December, when the rain falls for 10.9 days and typically aggregates up to 3.43" (87mm) of precipitation.Snowfall
Months with snowfall in Salmon Brook, Connecticut, are January through May, October through December. In Salmon Brook, in December, during 6.8 snowfall days, 4.25" (108mm) of snow is typically accumulated. Throughout the year, there are 37.5 snowfall days, and 21.26" (540mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December in Salmon Brook, sunrise is at 7:00 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:30 pm EST.
Sunshine
The average sunshine in December in Salmon Brook is 4.5h.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 of 2, and less, symbolizes a minimal health hazard 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:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Salmon Brook, CT
- Average high temperature in December: 36.7°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in December: 25.5°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in December
Salmon Brook, CT
- Average pressure in December: 30.05"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
Salmon Brook, CT
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Salmon Brook, 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
Salmon Brook, CT
- Average rainfall in December: 3.43"
The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in December
Salmon Brook, CT
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Salmon Brook, CT
- Average snowfall in December: 4.25"
The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Salmon Brook, CT
- Average snowfall days in December: 6.8 days
The month with the highest number of snowfall days is February (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Salmon Brook, CT
- Average daylight in December: 9h and 12min
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 30min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Salmon Brook, CT
- Average sunshine days in December: 14.7 days
The month with the most sunshine days is January (16.6 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in December
Salmon Brook, 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
Salmon Brook, CT
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Salmon Brook, CT
- Average visibility in December: 6mi
The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).
