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 shows a mild decline in the average high-temperature, falling from November's frosty 42.8°F (6°C) to an icy 32.5°F (0.3°C). Windsor's temperature in December lowers to a consistent average of 21.7°F (-5.7°C) during the nights.Humidity
In December, the average relative humidity in Windsor is 85%.Rainfall
In December, in Windsor, the rain falls for 9.6 days. Throughout December, 1.81" (46mm) of precipitation is accumulated. In Windsor, during the entire year, the rain falls for 149.4 days and collects up to 24.53" (623mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Windsor, during December, snow falls for 13.8 days and regularly aggregates up to 5.08" (129mm) of snow. In Windsor, Massachusetts, during the entire year, snow falls for 77.5 days and aggregates up to 32.32" (821mm) of snow.Daylight
The month with the shortest days in Windsor is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:02 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:29 pm EST.
Sunshine
In December, the average sunshine is 3.8h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
How cold is December in Windsor?
What is the average humidity in December in Windsor?
How many days does it rain in December in Windsor?
How much does it snow in Windsor in December?
What is the month with the shortest days in Windsor?
How many hours of daylight does Windsor have in December?
When is the sunrise / sunset in December in Windsor?
How many hours of sunshine does Windsor have in December?
What is the month with the lowest UV index in Windsor?
What is the UV index reading in December in Windsor?
Average temperature in December
Windsor, MA
- Average high temperature in December: 32.5°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in December: 21.7°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Windsor, MA
- 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 (29.92"Hg).
Average wind speed in December
Windsor, MA
- Average wind speed in December: 8.6mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Windsor, MA
- Average humidity in December: 85%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Windsor, MA
- Average rainfall in December: 1.81"
The wettest months (with the highest rainfall) are May and October (2.56").
The driest months (with the least rainfall) are January and February (1.46").
Average rainfall days in December
Windsor, MA
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in December
Windsor, MA
- Average snowfall in December: 5.08"
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
Windsor, MA
- Average snowfall days in December: 13.8 days
The month with the highest number of snowfall days is February (16.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Windsor, MA
- 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 6min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in December
Windsor, MA
- Average sunshine days in December: 13 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is February (9.6 days).
Average UV index in December
Windsor, MA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Windsor, MA
- Average cloud cover in December: 60
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in December
Windsor, MA
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Windsor, Massachusetts, USA
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