December weather forecastEllicott, CO
December
Weather in December
The first month of the winter, December, is still a cold month in Ellicott, Colorado, with temperature in the range of an average low of 20.5°F (-6.4°C) and an average high of 38.7°F (3.7°C).Temperature
The lowest temperatures are recorded in December, with averages reaching a high of 38.7°F (3.7°C) and a low of 20.5°F (-6.4°C).Humidity
In December, the average relative humidity in Ellicott, Colorado, is 61%.Rainfall
The months with the least rainfall are January and December Rain falls for 1.8 days and accumulates 0.2" (5mm) of rain.Snowfall
January through May, October through December are months with snowfall in Ellicott. In December, in Ellicott, it is snowing for 5.1 days. Throughout December, 1.46" (37mm) of snow is accumulated. In Ellicott, Colorado, during the entire year, snow falls for 34.7 days and aggregates up to 13.27" (337mm) 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 December, sunrise is at 6:57 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:45 pm MST.
Sunshine
In December, the average sunshine in Ellicott, Colorado, is 7h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Ellicott. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. 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
Ellicott, CO
- Average high temperature in December: 38.7°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is December (38.7°F).
- Average low temperature in December: 20.5°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is December (20.5°F).
Average pressure in December
Ellicott, 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
Ellicott, CO
- Average wind speed in December: 7.4mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Ellicott, CO
- Average humidity in December: 61%
The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is June (44%).
Average rainfall in December
Ellicott, CO
- Average rainfall in December: 0.2"
The wettest month (with the highest rainfall) is July (2.72").
The driest months (with the least rainfall) are January and December (0.2").
Average rainfall days in December
Ellicott, CO
- Average rainfall days in December: 1.8 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is December (1.8 days).
Average snowfall in December
Ellicott, CO
- Average snowfall in December: 1.46"
The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ellicott, CO
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Ellicott, 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 0min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 48min).
Average sunshine days in December
Ellicott, CO
- Average sunshine days in December: 25.3 days
The month with the most sunshine days is December (25.3 days).
The month with the least sunshine days is July (6.8 days).
Average UV index in December
Ellicott, 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, October, November and December (UV index 2).
Average cloud cover in December
Ellicott, CO
- Average cloud cover in December: 21
The month with the most cloud cover is April (Cloud cover 25).
The months with the least cloud cover are June, October and November (Cloud cover 16).
Average visibility in December
Ellicott, 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).
