December weather forecastBasalt, CO
December
Weather in December
December, the first month of the winter in Basalt, is also a subzero cold month, with an average temperature varying between 7.7°F (-13.5°C) and 27.9°F (-2.3°C).Temperature
December brings the lowest temperatures, with an average high of 27.9°F (-2.3°C) and an average low of 7.7°F (-13.5°C).Humidity
The average relative humidity in December is 83%.Rainfall
In Basalt, in December, during 8.2 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. Throughout the year, there are 119.7 rainfall days, and 16.69" (424mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In December, it is snowing for 16.5 days. Throughout December, 12.72" (323mm) of snow is accumulated. Throughout the year, there are 100.5 snowfall days, and 78.03" (1982mm) of snow is accumulated.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 7:09 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:55 pm MST.
Sunshine
In Basalt, the average sunshine in December is 6.2h.UV index
The month with the lowest UV index in Basalt, Colorado, is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 1 transforms into these recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. When the Sun is at its strongest around midday, find shade and limit exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Basalt, CO
- Average high temperature in December: 27.9°F
The warmest month (with the highest average high temperature) is July (75.7°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in December: 7.7°F
The month with the highest average low temperature is July (43.9°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in December
Basalt, CO
- Average pressure in December: 30.18"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is May (29.94"Hg).
Average wind speed in December
Basalt, CO
- Average wind speed in December: 4.5mph
The windiest month (with the highest average wind speed) is June (5.9mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity in December
Basalt, CO
- Average humidity in December: 83%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (48%).
Average rainfall in December
Basalt, CO
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is April (2.05").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days in December
Basalt, CO
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is November (5.1 days).
Average snowfall in December
Basalt, CO
- Average snowfall in December: 12.72"
The month with the highest snowfall is February (13.94").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Basalt, CO
- Average snowfall days in December: 16.5 days
The month with the highest number of snowfall days is February (18.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Basalt, CO
- Average daylight in December: 9h and 24min
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 24min).
- Average sunshine in December: 6h and 12min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in December
Basalt, CO
- Average sunshine days in December: 13 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is April (7.3 days).
Average UV index in December
Basalt, CO
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Basalt, CO
- Average cloud cover in December: 36
The month with the most cloud cover is February (Cloud cover 43).
The months with the least cloud cover are June and September (Cloud cover 14).
Average visibility in December
Basalt, CO
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
