December weather forecastMatheson, CO
December
Weather in December
The first month of the winter, December, is also a wintry month in Matheson, Colorado, with an average temperature fluctuating between 39°F (3.9°C) and 22.3°F (-5.4°C).Temperature
In Matheson, the lowest temperatures are generally noted in December, averaging a high of 39°F (3.9°C) and a low of 22.3°F (-5.4°C).Humidity
In December, the average relative humidity in Matheson, Colorado, is 60%.Rainfall
The month with the least rainfall in Matheson is December, when the rain falls for 2.5 days and typically collects 0.2" (5mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Matheson. In December, it is snowing for 3.5 days. Throughout December, 0.75" (19mm) of snow is accumulated. Throughout the year, in Matheson, there are 26.7 snowfall days, and 9.02" (229mm) of snow is accumulated.Daylight
December has the shortest days of the year in Matheson, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 6:56 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:43 pm MST.
Sunshine
In December, the average sunshine is 6.8h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Matheson, Colorado. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Consider this! The reflection from snow can almost 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
Matheson, CO
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (39°F).
- Average low temperature in December: 22.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is December (22.3°F).
Average pressure in December
Matheson, CO
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January and December (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Matheson, CO
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).
Average humidity in December
Matheson, CO
- Average humidity in December: 60%
The month with the highest relative humidity is February (63%).
The months with the lowest relative humidity are June and September (46%).
Average rainfall in December
Matheson, CO
- Average rainfall in December: 0.2"
The wettest month (with the highest rainfall) is May (1.77").
The driest month (with the least rainfall) is December (0.2").
Average rainfall days in December
Matheson, CO
- Average rainfall days in December: 2.5 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is November (1.7 days).
Average snowfall in December
Matheson, CO
- Average snowfall in December: 0.75"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Matheson, CO
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Matheson, 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, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
Average sunshine days in December
Matheson, CO
- Average sunshine days in December: 24.9 days
The month with the most sunshine days is December (24.9 days).
The month with the least sunshine days is July (13.4 days).
Average UV index in December
Matheson, 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
Matheson, CO
- Average cloud cover in December: 25
The months with the most cloud cover are February and April (Cloud cover 27).
The months with the least cloud cover are June and September (Cloud cover 16).
Average visibility in December
Matheson, 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).
