Keystone Weather: May
 |
Average Day Temperature: | 50.3°F |
|
Average Night Temperature: | 27.0°F |
|
Number of Sunny Days: | 10 days |
| Sunshine Hours: | 13.9 - 14.8 hours | |
|
Number of Rainy Days: | 2 days |
| Precipitation Totals: | 1.5 in | |
| detailed information | ||
14 day weather
forecast
forecast
| Keystone |
When is the Best
Time to Visit?
Time to Visit?
| Keystone |
Air Temperature in May, °F
The highest day temperature in May 2025 was 66°F. The lowest night temperature was 14°F. The average values for day and night temperatures during May were 50.7°F и 27.4°F respectivly.
Sunny, Cloudy and Gloomy days
You can expect various weather conditions during May. Be ready for sunny, cloudy or even gloomy days.
Precipitation Totals in May, in
Precipitation total in May for Keystone is 1.5 in. It makes may the most rainy month of the year.
Wind Speed in May, mph
The average wind speed in May is 6.6 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 May is 8.0 hours.
Keystone on the Weather Map
USA Resorts:
NAME
F°
| Chicago |  |
-2 |
| Hawaii | |
+78 |
| Honolulu | |
+78 |
| Houston | |
+44 |
| Las Vegas |  |
+40 |
| Los Angeles | |
+52 |
| Maui | |
+72 |
| Miami | |
+72 |
| Miami Beach |  |
+80 |
| New York | |
+18 |
| San Diego | |
+54 |
| San Francisco | |
+46 |
| Sarasota | |
+62 |
| Tampa | |
+62 |
| Washington | |
+28 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Keystone
Local time: 01:34
05 dec, friday
| 0300 |  |
0°F | E 4 mph |
| 0600 | |
2°F | E 3 mph |
| 0900 |  |
4°F | NE 3 mph |
| 1200 | |
18°F | E 6 mph |
| 1500 | |
22°F | E 7 mph |
| 1800 | |
18°F | SE 6 mph |
| 2100 | |
14°F | E 4 mph |
06 dec, saturday
| 0000 |  |
12°F | NE 4 mph |