Weather in Keystone in Summer
| June | July | August | ||||
| Average day temperature: | ||||||
| Average day temperature: | 77.0°F | 84.8°F | 84.5°F | |||
| Average night temperature: | ||||||
| Average night temperature: | 59.2°F | 65.7°F | 66.0°F | |||
| Number of sunny days: | ||||||
| Number of sunny days: | 19 days | 20 days | 22 days | |||
| Day length: | ||||||
| Day length: | 15.3 - 15.5 h. | 14.6 - 15.4 h. | 13.2 - 14.6 h. | |||
| Number of rainy days: | ||||||
| Number of rainy days: | 2 days | 1 day | 1 day | |||
| Precipitation totals: | ||||||
| Precipitation totals: | 0.9 in. | 0.7 in. | 0.5 in. | |||
current
weather
weather
| Keystone |
monthly
weather
weather
| Keystone |
weather in
December
December
| Keystone |
14 days
forecast
forecast
| Keystone |
Day & Night air temperature, °F
Precipitation total, in.
Sunny, partly cloudy and cloudy days
weather in
winter
winter
| Keystone |
weather in
spring
spring
| Keystone |
weather in
summer
summer
| Keystone |
weather in
autumn
autumn
| Keystone |
Wind speed, mph
Average sunny hours
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
Best time for vacation in Keystone
Keystone on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Keystone
Local time: 01:37
December 22, sunday
0300
45°F
E
7 mph
7 mph
0600
43°F
E
11 mph
11 mph
0900
41°F
E
14 mph
14 mph
1200
41°F
SE
12 mph
12 mph
1500
43°F
SE
14 mph
14 mph
1800
39°F
SE
9 mph
9 mph
2100
34°F
SE
7 mph
7 mph
December 23, monday
0000
32°F
E
6 mph
6 mph
