December weather forecastWindsor, CO
December
Weather in December
December reigns in true winter fashion with the city of Windsor, Colorado experiencing average low temperatures of 20.3°F (-6.5°C). With 2.72" (69mm) of snowfall adorning the streets like white icing, it's a perfect setting for festive decorations. Shorter daylight hours and longer nights make it the typical winter month. Despite the increased chill in the air, the holiday spirits remain high. December’s weather comes with a festive mood, marking the end of the year with wintery charm and snowy magnificence.Temperature
Temperature readings in Windsor, Colorado, reach their annual highs in December, averaging 39.2°F (4°C) and a minimum average of 20.3°F (-6.5°C).Humidity
February and December, with an average relative humidity of 63%, are the most humid months in Windsor.Rainfall
In Windsor, during December, the rain falls for 3.9 days and regularly aggregates up to 0.43" (11mm) of precipitation. Throughout the year, in Windsor, there are 93.1 rainfall days, and 10.2" (259mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Windsor. In Windsor, during December, snow falls for 7.5 days and regularly aggregates up to 2.72" (69mm) of snow. Throughout the year, there are 41.7 snowfall days, and 24.84" (631mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:04 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:43 pm MST.
Sunshine
The months with the least sunshine in Windsor are February and December, with an average of 6.7h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Windsor, Colorado. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 2 in December suggests the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Windsor, CO
- Average high temperature in December: 39.2°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is December (39.2°F).
- Average low temperature in December: 20.3°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).
Average pressure in December
Windsor, CO
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Windsor, CO
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest months (with the lowest average wind speed) are August and December (5.8mph).
Average humidity in December
Windsor, CO
- Average humidity in December: 63%
The months with the highest relative humidity are February and December (63%).
The month with the lowest relative humidity is August (42%).
Average rainfall in December
Windsor, CO
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in December
Windsor, CO
- Average rainfall days in December: 3.9 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in December
Windsor, CO
- Average snowfall in December: 2.72"
The month with the highest snowfall is February (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Windsor, CO
- Average snowfall days in December: 7.5 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
Windsor, CO
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 6h and 42min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 6h and 42min).
Average sunshine days in December
Windsor, CO
- Average sunshine days in December: 22.2 days
The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in December
Windsor, CO
- 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, November and December (UV index 2).
Average cloud cover in December
Windsor, CO
- Average cloud cover in December: 26
The months with the most cloud cover are February and April (Cloud cover 28).
The months with the least cloud cover are June, August and September (Cloud cover 17).
Average visibility in December
Windsor, CO
- 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).
