Weather in Keystone in Summer
| June | July | August | ||||
| Average day temperature: | ||||||
| Average day temperature: | 78.3°F | 86.1°F | 86.0°F | |||
| Average night temperature: | ||||||
| Average night temperature: | 60.9°F | 67.5°F | 68.0°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. | 13.3 - 14.6 h. | |||
| Number of rainy days: | ||||||
| Number of rainy days: | 2 days | 1 day | 1 day | |||
| Precipitation totals: | ||||||
| Precipitation totals: | 1.0 in. | 0.6 in. | 0.5 in. | |||
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: 19:48
May 18, saturday
2100
48°F
NW
8 mph
8 mph
May 19, sunday
0000
43°F
N
4 mph
4 mph
0300
46°F
NE
7 mph
7 mph
0600
46°F
E
6 mph
6 mph
0900
63°F
NE
6 mph
6 mph
1200
72°F
E
12 mph
12 mph
1500
73°F
NE
15 mph
15 mph
1800
66°F
SE
11 mph
11 mph
