Measurements:
°C
°F
Keystone
26°F
N 3 mph
Feels like: 16°F
Precip: 0%
World Resorts USA Keystone Weather December Weather in Keystone

Keystone Weather: December

Average Day Temperature: 23.6°F
Average Night Temperature: 3.7°F
Number of Sunny Days: 10 days
Sunshine Hours: 9.4 - 9.6 hours
Number of Rainy Days: 0 days
Precipitation Totals: 0.9 in
Number of Snowy Days: 1 day

Air Temperature in December, °F

Select Year: 2023 2022 2021

The highest day temperature in December 2023 was 47°F. The lowest night temperature was -16°F. The average values for day and night temperatures during December were 24.7°F и 5.4°F respectivly.

Sunny, Cloudy and Gloomy days

Most of the days in December are gloomy but you can also expect sunny days.

Precipitation Totals in December, in

Precipitation total in December for Keystone is 0.9 in.

Wind Speed in December, mph

The average wind speed in December is 5.2 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Keystone in December is 4.8 hours.

Best Time to Visit Keystone
The most sunny months:
September 19 days
October 19 days
November 17 days
The most warm months:
July 72.6 °F
August 71.0 °F
June 64.9 °F
The most cold months:
January 20.9 °F
February 21.8 °F
December 23.6 °F
The most rainy months:
August 3 days
June 2 days
September 2 days
The most windy months:
April 7 mph
May 6 mph
June 6 mph

Keystone on the Weather Map

USA Resorts:
NAME
Boston +10
Chicago +20
Hawaii +78
Honolulu +78
Houston +46
Las Vegas +50
Los Angeles +54
Miami +62
New York +16
Orlando +50
San Diego +54
San Francisco +54
Sarasota +48
Tampa +46
Washington +20
24 Hours Weather Forecast
Keystone
Local time: 03:46
22 dec, sunday
0600 24°F
NE
3 mph
0900 24°F
NE
4 mph
1200 34°F
E
4 mph
1500 34°F
E
7 mph
1800 28°F
NE
2 mph
2100 26°F
N
2 mph
23 dec, monday
0000 24°F
NE
2 mph
0300 22°F
NE
1 mph