Measurements:
°C
°F
Keystone
44°F
E 7 mph
Feels like: 40°F
Precip: 0%
World Resorts USA Keystone Weather May Weather in Keystone

Keystone Weather: May

Average Day Temperature: 64.6°F
Average Night Temperature: 47.1°F
Number of Sunny Days: 12 days
Sunshine Hours: 14.2 - 15.2 hours
Number of Rainy Days: 1 day
Precipitation Totals: 1.2 in

Air Temperature in May, °F

Select Year: 2024 2023 2022

The highest day temperature in May 2024 was 76°F. The lowest night temperature was 20°F. The average values for day and night temperatures during May were 56.7°F и 39.3°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 1.2 in. It makes may the most rainy month of the year.

Wind Speed in May, mph

The average wind speed in May is 8.5 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 8.5 hours.

Best Time to Visit Keystone
The most sunny months:
September 24 days
August 22 days
October 22 days
The most warm months:
July 88.7 °F
August 88.3 °F
June 80.0 °F
The most cold months:
February 31.6 °F
January 32.2 °F
December 33.7 °F
The most rainy months:
June 2 days
September 1 day
May 1 day
The most windy months:
April 9 mph
February 9 mph
December 9 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: 04:00
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