December weather forecastFrederick, CO
December
Weather in December
The first month of the winter, December, is still a cold month in Frederick, Colorado, with temperature in the range of an average high of 40.8°F (4.9°C) and an average low of 21°F (-6.1°C).Temperature
December, marked by an average high-temperature of 40.8°F (4.9°C) and a low-temperature of 21°F (-6.1°C), is the coldest month.Humidity
In December, the average relative humidity in Frederick is 61%.Rainfall
January and December are months with the least rain when the rain falls for 3 days and typically aggregates up to 0.35" (9mm) of rain.Snowfall
Months with snowfall are January through May, October through December. In December, in Frederick, it is snowing for 5.9 days. Throughout December, 2.83" (72mm) of snow is accumulated. In Frederick, Colorado, during the entire year, snow falls for 38.2 days and aggregates up to 27.44" (697mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:03 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:44 pm MST.
Sunshine
In December, the average sunshine is 6.8h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 suggests these recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Frederick, CO
- Average high temperature in December: 40.8°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is December (40.8°F).
- Average low temperature in December: 21°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is December (21°F).
Average pressure in December
Frederick, 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 (29.9"Hg).
Average wind speed in December
Frederick, CO
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is December (5.7mph).
Average humidity in December
Frederick, CO
- Average humidity in December: 61%
The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is August (40%).
Average rainfall in December
Frederick, CO
- Average rainfall in December: 0.35"
The wettest month (with the highest rainfall) is May (1.69").
The driest months (with the least rainfall) are January and December (0.35").
Average rainfall days in December
Frederick, CO
- Average rainfall days in December: 3 days
The months with the highest number of rainy days are May and July (12.3 days).
The months with the least rainy days are January and December (3 days).
Average snowfall in December
Frederick, CO
- Average snowfall in December: 2.83"
The month with the highest snowfall is April (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Frederick, CO
- Average snowfall days in December: 5.9 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Frederick, 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 42min).
Average sunshine days in December
Frederick, CO
- Average sunshine days in December: 24.5 days
The month with the most sunshine days is December (24.5 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in December
Frederick, 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
Frederick, CO
- Average cloud cover in December: 24
The month with the most cloud cover is April (Cloud cover 27).
The month with the least cloud cover is September (Cloud cover 15).
Average visibility in December
Frederick, 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).
