December weather forecastMerino, CO
December
Weather in December
December, the first month of the winter in Merino, is also an icy month, with an average temperature varying between 23°F (-5°C) and 37.8°F (3.2°C).Temperature
December is the month that records the lowest temperatures, with averages ranging from a high of 37.8°F (3.2°C) to a low of 23°F (-5°C).Humidity
In December, the average relative humidity in Merino is 64%.Rainfall
In Merino, in December, during 4.6 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. In Merino, during the entire year, the rain falls for 123.2 days and collects up to 15.39" (391mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Merino, in December, during 6.4 snowfall days, 1.38" (35mm) of snow is typically accumulated. Throughout the year, in Merino, there are 34.4 snowfall days, and 12.13" (308mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December in Merino, Colorado, sunrise is at 6:58 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:36 pm MST.
Sunshine
In Merino, the average sunshine in December is 6.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 2 in December transforms into the following instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Merino, CO
- Average high temperature in December: 37.8°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (37.8°F).
- Average low temperature in December: 23°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is December (23°F).
Average pressure in December
Merino, CO
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Merino, CO
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (9mph).
Average humidity in December
Merino, CO
- Average humidity in December: 64%
The month with the highest relative humidity is January (65%).
The month with the lowest relative humidity is September (47%).
Average rainfall in December
Merino, CO
- Average rainfall in December: 0.39"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in December
Merino, CO
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in December
Merino, CO
- Average snowfall in December: 1.38"
The month with the highest snowfall is February (2.68").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Merino, CO
- Average snowfall days in December: 6.4 days
The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Merino, CO
- Average daylight in December: 9h and 18min
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 18min).
- Average sunshine in December: 6h and 30min
The months with the most sunshine are June and August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in December
Merino, CO
- Average sunshine days in December: 21.9 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in December
Merino, 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
Merino, CO
- Average cloud cover in December: 29
The month with the most cloud cover is February (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in December
Merino, 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).
