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
December is the coldest month, with an average high-temperature of 38.3°F (3.5°C) and an average low-temperature of 20.3°F (-6.5°C).Humidity
With an average relative humidity of 64%, December is the most humid month.Rainfall
January and December are months with the least rain when the rain falls for 3.8 days and typically aggregates up to 0.31" (8mm) of rain.Snowfall
January through May, October through December are months with snowfall. In Grover, in December, during 6.6 snowfall days, 1.93" (49mm) of snow is typically accumulated. In Grover, during the entire year, snow falls for 39.6 days and aggregates up to 21.26" (540mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:02 am and sunset at 4:29 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:39 pm MST.
Sunshine
In December, the average sunshine is 6.7h.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 estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
Is December cold?
What is the most humid month?
What is the average humidity in December?
What is the driest month?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Grover, CO
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (38.3°F).
- Average low temperature in December: 20.3°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).
Average pressure in December
Grover, CO
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Grover, CO
- Average wind speed in December: 6.4mph
The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in December
Grover, CO
- Average humidity in December: 64%
The month with the highest relative humidity is December (64%).
The months with the lowest relative humidity are August and September (44%).
Average rainfall in December
Grover, CO
- Average rainfall in December: 0.31"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are January and December (0.31").
Average rainfall days in December
Grover, CO
- Average rainfall days in December: 3.8 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (2.9 days).
Average snowfall in December
Grover, CO
- Average snowfall in December: 1.93"
The month with the highest snowfall is April (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Grover, CO
- Average snowfall days in December: 6.6 days
The month with the highest number of snowfall days is February (9.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Grover, CO
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 6h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
Average sunshine days in December
Grover, CO
- Average sunshine days in December: 23.3 days
The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in December
Grover, 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
Grover, CO
- Average cloud cover in December: 27
The months with the most cloud cover are February and April (Cloud cover 29).
The month with the least cloud cover is June (Cloud cover 17).
Average visibility in December
Grover, 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).
Grover, Colorado, USA
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