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
McCoy's December weather comes with a decrease in average high-temperatures, moving from a wintry 37.2°F (2.9°C) in November to a freezing cold 27°F (-2.8°C). Throughout December, an average low-temperature of 7°F (-13.9°C) is experienced.Humidity
The average relative humidity in December is 84%.Rainfall
In McCoy, during December, the rain falls for 9.5 days and regularly aggregates up to 1.61" (41mm) of precipitation. In McCoy, during the entire year, the rain falls for 134.3 days and collects up to 18.23" (463mm) of precipitation.Snowfall
January through June, September through December are months with snowfall in McCoy. In McCoy, in December, snow falls for 17.4 days, with typically accumulated 12.6" (320mm) of snow. Throughout the year, there are 103.1 snowfall days, and 76.73" (1949mm) 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 the month, sunrise is at 7:10 am and sunset at 4:42 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:52 pm MST.
Sunshine
In McCoy, the average sunshine in December is 6.2h.UV index
February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Experience reduced UV exposure by about half when donning a wide-brim hat. Consider carefully! The reflective quality of 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
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does McCoy have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does McCoy have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
McCoy, CO
- Average high temperature in December: 27°F
The warmest month (with the highest average high temperature) is July (75.2°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in December: 7°F
The month with the highest average low temperature is July (43.3°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).
Average pressure in December
McCoy, CO
- Average pressure in December: 30.19"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are April and May (29.94"Hg).
Average wind speed in December
McCoy, CO
- Average wind speed in December: 4.4mph
The windiest month (with the highest average wind speed) is June (5.8mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity in December
McCoy, CO
- Average humidity in December: 84%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is June (49%).
Average rainfall in December
McCoy, CO
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is April (2.4").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in December
McCoy, CO
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is November (6.3 days).
Average snowfall in December
McCoy, CO
- Average snowfall in December: 12.6"
The month with the highest snowfall is February (14.13").
The months with the least snowfall are July and August (0").
Average snowfall days in December
McCoy, CO
- Average snowfall days in December: 17.4 days
The month with the highest number of snowfall days is February (19.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
McCoy, 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 1min
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 48min).
Average sunshine days in December
McCoy, CO
- Average sunshine days in December: 12.3 days
The months with the most sunshine days are September and November (17.6 days).
The month with the least sunshine days is April (5.9 days).
Average UV index in December
McCoy, CO
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in December
McCoy, CO
- Average cloud cover in December: 37
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
McCoy, 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, March and December (4mi).
McCoy, Colorado, USA
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