Best Time To Visit Keystone - Time To Go To Keystone

Keystone experiences a cold and a temperate climate with an annual average temperature of about 7.2 degree Celsius. While July is the warmest month of the year with an annual average temperature of 20.6 degree Celsius, January is the coldest month of the year with the annual average temperature of -4.8 degree Celsius. 

  • Spring (March - May): Spring starts off cold and as the season progresses there is a gradual rise in the temperature level making it the ideal weather for the flowers to blossom.
  • Summer (June - August): The temperature during this time of the year is warm and the only relief is that Keystone experiences the most amount of rainfall during the summers. 
  • Autumn (September - November): Temperature gradually falls down during the time of the autumn signifying the beginning of winter season. The average minimum and maximum temperature is between -5.9 and 14 degree Celsius.
  • Winter (December - February): Winters in Keystone are dry with little to no rainfall. The temperature below freezing levels is quite common in Keystone during the time of winter.

The peak and the best time to visit Keystone is during late spring and early summer while the temperature is moderate and ideal to visit all the attractions. But to skip the crowd and to have a peaceful holiday, you can visit Keystone during the offseason of autumn. 

Climate in Keystone

Know weather for your travel dates:

14-Oct-2018
Today 14 Oct

48

40

Clear throughout the day.

Wind:3.32 m/s

Humidity:62%

Precipitation:0.01%

  • Mon 15 Oct
    55 | 33

    Clear throughout the day.

  • Tue 16 Oct
    58 | 40

    Clear throughout the day.

  • Wed 17 Oct
    64 | 42

    Clear throughout the day.

  • Thu 18 Oct
    58 | 34

    Clear throughout the day.

  • Fri 19 Oct
    59 | 40

    Clear throughout the day.

  • Sat 20 Oct
    67 | 35

    Clear throughout the day.

Month wise Weather in Keystone

Average Temperature in Keystone by month

  • 80℉
  • 60℉
  • 40℉
  • 20℉ 0℉
Jan

Average temperature: 21℉

Minimum temperature: -8℉

Maximum temperature: 46℉

Feb

Average temperature: 32℉

Minimum temperature: -2℉

Maximum temperature: 64℉

Mar

Average temperature: 39℉

Minimum temperature: 12℉

Maximum temperature: 72℉

Apr

Average temperature: 44℉

Minimum temperature: 27℉

Maximum temperature: 73℉

May

Average temperature: 53℉

Minimum temperature: 34℉

Maximum temperature: 82℉

Jun

Average temperature: 64℉

Minimum temperature: 43℉

Maximum temperature: 90℉

Jul

Average temperature: 74℉

Minimum temperature: 48℉

Maximum temperature: 99℉

Aug

Average temperature: 67℉

Minimum temperature: 48℉

Maximum temperature: 90℉

Sep

Average temperature: 60℉

Minimum temperature: 34℉

Maximum temperature: 90℉

Oct

Average temperature: 47℉

Minimum temperature: 14℉

Maximum temperature: 79℉

Nov

Average temperature: 38℉

Minimum temperature: 18℉

Maximum temperature: 68℉

Dec

Average temperature: 18℉

Minimum temperature: -17℉

Maximum temperature: 41℉

Highest temperature in Keystone is recorded as 98.6℉ in July.

Lowest temperature in Keystone is recorded as -16.6℉ in December.

Average Rain in Keystone by Month (in mm)

  • 80
  • 60
  • 40
  • 20 0
Jan

Average Rain: 20.62 mm

Minimum Rain: 0 mm

Maximum Rain: 116.13 mm

Feb

Average Rain: 12.33 mm

Minimum Rain: 0 mm

Maximum Rain: 65.04 mm

Mar

Average Rain: 17.48 mm

Minimum Rain: 0 mm

Maximum Rain: 193.55 mm

Apr

Average Rain: 44.07 mm

Minimum Rain: 0 mm

Maximum Rain: 286.45 mm

May

Average Rain: 31.41 mm

Minimum Rain: 0 mm

Maximum Rain: 133.14 mm

Jun

Average Rain: 28.49 mm

Minimum Rain: 0 mm

Maximum Rain: 253.96 mm

Jul

Average Rain: 32.32 mm

Minimum Rain: 0 mm

Maximum Rain: 162.58 mm

Aug

Average Rain: 25.47 mm

Minimum Rain: 0 mm

Maximum Rain: 221.41 mm

Sep

Average Rain: 28.18 mm

Minimum Rain: 0 mm

Maximum Rain: 289.56 mm

Oct

Average Rain: 13.33 mm

Minimum Rain: 0 mm

Maximum Rain: 122.35 mm

Nov

Average Rain: 5.88 mm

Minimum Rain: 0 mm

Maximum Rain: 58.83 mm

Dec

Average Rain: 14.88 mm

Minimum Rain: 0 mm

Maximum Rain: 156.36 mm

Maximum rain recorded in Keystone is 289.56 mm in September.

Months with no rains or lowest rains in Keystone is November.

Average Humidity in Keystone by Month (in %)

  • 100
  • 75
  • 50
  • 25 0
Jan

Average Humidity: 70%

Minimum Humidity: 45%

Maximum Humidity: 89%

Feb

Average Humidity: 64%

Minimum Humidity: 32%

Maximum Humidity: 88%

Mar

Average Humidity: 64%

Minimum Humidity: 34%

Maximum Humidity: 92%

Apr

Average Humidity: 65%

Minimum Humidity: 37%

Maximum Humidity: 92%

May

Average Humidity: 60%

Minimum Humidity: 42%

Maximum Humidity: 88%

Jun

Average Humidity: 50%

Minimum Humidity: 37%

Maximum Humidity: 65%

Jul

Average Humidity: 48%

Minimum Humidity: 30%

Maximum Humidity: 65%

Aug

Average Humidity: 58%

Minimum Humidity: 38%

Maximum Humidity: 80%

Sep

Average Humidity: 56%

Minimum Humidity: 28%

Maximum Humidity: 93%

Oct

Average Humidity: 52%

Minimum Humidity: 26%

Maximum Humidity: 88%

Nov

Average Humidity: 62%

Minimum Humidity: 37%

Maximum Humidity: 90%

Dec

Average Humidity: 66%

Minimum Humidity: 48%

Maximum Humidity: 87%

Most humid month in Keystone is January.

Least humid month in Keystone is July.

Best time to visit Keystone Attractions in October