December weather forecastLarkspur, CO
December
Weather in December
The first month of the winter, December, is also a wintry month in Larkspur, Colorado, with an average temperature varying between 36°F (2.2°C) and 17.1°F (-8.3°C).Temperature
The coldest period is December, when temperatures fluctuate between an average high of 36°F (2.2°C) and a low of 17.1°F (-8.3°C).Humidity
The average relative humidity in December is 65%.Rainfall
The months with the least rainfall are January, November and December Rain falls for 4.5 days and accumulates 0.63" (16mm) of rain.Snowfall
January through June, September through December are months with snowfall. In Larkspur, in December, snow falls for 10.5 days, with typically accumulated 4.57" (116mm) of snow. Throughout the year, there are 68.6 snowfall days, and 50.51" (1283mm) 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 7:00 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:46 pm MST.
Sunshine
In December, the average sunshine is 6.8h.UV index
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. To protect against the Sun's most potent rays, avoid direct exposure around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Larkspur, CO
- Average high temperature in December: 36°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is December (36°F).
- Average low temperature in December: 17.1°F
The month with the highest average low temperature is July (54°F).
The coldest month (with the lowest average low temperature) is December (17.1°F).
Average pressure in December
Larkspur, 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 April (29.91"Hg).
Average wind speed in December
Larkspur, CO
- Average wind speed in December: 7.4mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in December
Larkspur, CO
- Average humidity in December: 65%
The month with the highest relative humidity is February (69%).
The month with the lowest relative humidity is June (48%).
Average rainfall in December
Larkspur, CO
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is May (3.31").
The driest months (with the least rainfall) are January, November and December (0.63").
Average rainfall days in December
Larkspur, CO
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (3.6 days).
Average snowfall in December
Larkspur, CO
- Average snowfall in December: 4.57"
The month with the highest snowfall is April (9.29").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Larkspur, CO
- Average snowfall days in December: 10.5 days
The month with the highest number of snowfall days is February (11.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Larkspur, 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 48min
The months with the most sunshine are June and July (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 30min).
Average sunshine days in December
Larkspur, CO
- Average sunshine days in December: 19.4 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is May (9.5 days).
Average UV index in December
Larkspur, CO
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Larkspur, CO
- Average cloud cover in December: 25
The months with the most cloud cover are April and May (Cloud cover 30).
The months with the least cloud cover are September, October and November (Cloud cover 19).
Average visibility in December
Larkspur, 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).
