December weather forecastHenderson, CO
December
Weather in December
December, the first month of the winter in Henderson, is also a wintry month, with an average temperature fluctuating between 40.8°F (4.9°C) and 21.2°F (-6°C).Temperature
December brings the lowest temperatures, with an average high of 40.8°F (4.9°C) and an average low of 21.2°F (-6°C).Humidity
The average relative humidity in December is 62%.Rainfall
December is the month with the least rainfall. Rain falls for 2.6 days and accumulates 0.12" (3mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 4.5 days. Throughout December, 0.75" (19mm) of snow is accumulated. In Henderson, during the entire year, snow falls for 30.9 days and aggregates up to 11.42" (290mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:02 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:44 pm MST.
Sunshine
In Henderson, the average sunshine in December is 6.8h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Henderson, CO
- Average high temperature in December: 40.8°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is December (40.8°F).
- Average low temperature in December: 21.2°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).
Average pressure in December
Henderson, CO
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Henderson, CO
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is December (6mph).
Average humidity in December
Henderson, CO
- Average humidity in December: 62%
The months with the highest relative humidity are January and February (64%).
The month with the lowest relative humidity is August (40%).
Average rainfall in December
Henderson, CO
- Average rainfall in December: 0.12"
The wettest month (with the highest rainfall) is May (0.98").
The driest month (with the least rainfall) is December (0.12").
Average rainfall days in December
Henderson, CO
- Average rainfall days in December: 2.6 days
The month with the highest number of rainy days is May (10.8 days).
The month with the least rainy days is December (2.6 days).
Average snowfall in December
Henderson, CO
- Average snowfall in December: 0.75"
The month with the highest snowfall is February (1.89").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Henderson, CO
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Henderson, CO
- Average daylight in December: 9h and 24min
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 24min).
- Average sunshine in December: 6h and 48min
The months with the most sunshine are June and July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
Average sunshine days in December
Henderson, CO
- Average sunshine days in December: 25.8 days
The month with the most sunshine days is December (25.8 days).
The month with the least sunshine days is July (14.8 days).
Average UV index in December
Henderson, 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
Henderson, CO
- Average cloud cover in December: 25
The month with the most cloud cover is April (Cloud cover 28).
The months with the least cloud cover are June, August and September (Cloud cover 16).
Average visibility in December
Henderson, 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).
