December weather forecastFountain, CO
December
Weather in December
December sees Fountain, Colorado in the heart of winter, presenting a significant change from November's pre-winter climatic conditions. This month experiences some of the coldest temperatures and witnesses an increase in snowfall to 2.87" (73mm). Despite the chilly weather, Fountain sparkles under the clear, crisp winter skies, with a spurt in relative humidity. As days shorten, December becomes the month with least sunlight, a characteristic feature of the winter solstice. The advent of January wraps up the winter season but maintains December’s weather trends.Temperature
During the coldest month, December, temperatures average a high of 39.2°F (4°C) and a low of 21.6°F (-5.8°C).Humidity
The average relative humidity in December is 60%.Rainfall
December is the month with the least rainfall. Rain falls for 5.4 days and accumulates 0.43" (11mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 7.4 days. Throughout December, 2.87" (73mm) of snow is accumulated. Throughout the year, there are 45 snowfall days, and 23.5" (597mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:58 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:16 am and sunset at 4:47 pm MST.
Sunshine
In Fountain, the average sunshine in December is 7.1h.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 value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Fountain, CO
- Average high temperature in December: 39.2°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (39.2°F).
- Average low temperature in December: 21.6°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is December (21.6°F).
Average pressure in December
Fountain, CO
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is April (29.9"Hg).
Average wind speed in December
Fountain, CO
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Fountain, CO
- Average humidity in December: 60%
The month with the highest relative humidity is February (63%).
The month with the lowest relative humidity is June (41%).
Average rainfall in December
Fountain, CO
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is December (0.43").
Average rainfall days in December
Fountain, CO
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (4.4 days).
Average snowfall in December
Fountain, CO
- Average snowfall in December: 2.87"
The month with the highest snowfall is February (4.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Fountain, CO
- Average snowfall days in December: 7.4 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Fountain, CO
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 7h and 6min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 54min).
Average sunshine days in December
Fountain, CO
- Average sunshine days in December: 21.4 days
The month with the most sunshine days is November (22.4 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in December
Fountain, CO
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Fountain, CO
- Average cloud cover in December: 20
The month with the most cloud cover is April (Cloud cover 25).
The months with the least cloud cover are June, September, October and November (Cloud cover 15).
Average visibility in December
Fountain, 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).
