Keystone Weather: December
 |
Average Day Temperature: | 33.7°F |
|
Average Night Temperature: | 22.4°F |
|
Number of Sunny Days: | 17 days |
| Sunshine Hours: | 8.9 - 9.1 hours | |
|
Number of Rainy Days: | 0 days |
| Precipitation Totals: | 0.3 in | |
|
Number of Snowy Days: | 1 day |
| detailed information | ||
14 day weather
forecast
forecast
| Keystone |
When is the Best
Time to Visit?
Time to Visit?
| Keystone |
Air Temperature in December, °F
The highest day temperature in December 2023 was 52°F. The lowest night temperature was 10°F. The average values for day and night temperatures during December were 37.6°F и 25.8°F respectivly.
Sunny, Cloudy and Gloomy days
Most of the days in December are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in December, in
Precipitation total in December for Keystone is 0.3 in. It makes december one of the least rainy months of the year.
Wind Speed in December, mph
The average wind speed in December is 8.9 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 5.9 hours.
Keystone on the Weather Map
USA Resorts:
NAME
F°
| 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 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Keystone
Local time: 03:31
22 dec, sunday
| 0600 |  |
42°F | E 11 mph |
| 0900 |  |
40°F | E 14 mph |
| 1200 |  |
40°F | SE 12 mph |
| 1500 | |
42°F | SE 14 mph |
| 1800 |  |
38°F | SE 9 mph |
| 2100 | |
32°F | SE 7 mph |
23 dec, monday
| 0000 | |
30°F | E 6 mph |
| 0300 |  |
28°F | E 6 mph |