Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
In Barr Lake, Colorado, the month of December is known for its lowest average temperatures, reaching a high of 40.8°F (4.9°C) and a low of 21.2°F (-6°C).Humidity
In December, the average relative humidity in Barr Lake is 62%.Rainfall
December is the month with the least rainfall in Barr Lake. Rain falls for 2.6 days and accumulates 0.12" (3mm) of precipitation.Snowfall
Months with snowfall in Barr Lake are January through May, October through December. In Barr Lake, during December, snow falls for 4.5 days and regularly aggregates up to 0.75" (19mm) of snow. In Barr Lake, 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 Barr Lake, the average sunshine in December 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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Barr Lake?
How cold is it in Barr Lake in December?
What is the average humidity in December in Barr Lake?
What is the driest month in Barr Lake?
How many days does it rain in December in Barr Lake?
How many days does it snow in December in Barr Lake?
What is the month with the shortest days in Barr Lake?
How many hours of daylight does Barr Lake have in December?
When are sunrise and sunset in December in Barr Lake?
How many hours of sunshine does Barr Lake have in December?
What is the month with the lowest UV index in Barr Lake?
What is the UV index reading in December in Barr Lake?
Average temperature in December
Barr Lake, 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
Barr Lake, 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
Barr Lake, 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
Barr Lake, 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
Barr Lake, 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
Barr Lake, 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
Barr Lake, 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
Barr Lake, 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
Barr Lake, CO
- Average daylight in December: 9h and 2min
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 5min
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
Barr Lake, 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
Barr Lake, 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
Barr Lake, 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
Barr Lake, 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).
Barr Lake, Colorado, USA
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