December weather forecastFlorissant, CO
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Florissant, Colorado, with temperature in the range of an average low of 9.7°F (-12.4°C) and an average high of 31.1°F (-0.5°C).Temperature
December's arrival correlates with a reduction in the average high-temperature, down from a cold 41.7°F (5.4°C) in November to a freezing cold 31.1°F (-0.5°C). In Florissant, December is marked by an average low-temperature of 9.7°F (-12.4°C).Humidity
In December, the average relative humidity is 74%.Rainfall
In Florissant, during December, the rain falls for 4 days and regularly aggregates up to 0.28" (7mm) of precipitation. In Florissant, during the entire year, the rain falls for 103.6 days and collects up to 10.24" (260mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In Florissant, in December, during 8.6 snowfall days, 1.97" (50mm) of snow is typically accumulated. In Florissant, Colorado, during the entire year, snow falls for 64.3 days and aggregates up to 24.57" (624mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:01 am and sunset at 4:39 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:49 pm MST.
Sunshine
The average sunshine in December is 6.9h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 2 during December translates into these guidelines:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Florissant, CO
- Average high temperature in December: 31.1°F
The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in December: 9.7°F
The month with the highest average low temperature is July (47.8°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in December
Florissant, CO
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is April (29.92"Hg).
Average wind speed in December
Florissant, CO
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Florissant, CO
- Average humidity in December: 74%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is June (46%).
Average rainfall in December
Florissant, CO
- Average rainfall in December: 0.28"
The wettest month (with the highest rainfall) is July (2.17").
The driest month (with the least rainfall) is November (0.2").
Average rainfall days in December
Florissant, CO
- Average rainfall days in December: 4 days
The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is November (2 days).
Average snowfall in December
Florissant, CO
- Average snowfall in December: 1.97"
The month with the highest snowfall is April (4.57").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Florissant, CO
- Average snowfall days in December: 8.6 days
The month with the highest number of snowfall days is February (10.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Florissant, CO
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 6h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 48min).
Average sunshine days in December
Florissant, CO
- Average sunshine days in December: 21.6 days
The month with the most sunshine days is November (24.2 days).
The month with the least sunshine days is July (8.3 days).
Average UV index in December
Florissant, CO
- Average UV index in December: 2
The month with the highest UV index is June (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Florissant, CO
- Average cloud cover in December: 27
The month with the most cloud cover is February (Cloud cover 30).
The months with the least cloud cover are June and October (Cloud cover 17).
Average visibility in December
Florissant, CO
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
