Weather in Town of Keystone in December

General weather information about Town of Keystone

Average annual temperature is 8.5 °C

Absolute maximum temperature: 34.3 °C

Absolute minimum temperature: -29.1 °C

Number of sunny days: 179 days

Number of rainy days: 134 days

Number of snow days: 52 days

* Weather data for Town of Keystone United States is based on climate observations for 2026 year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	13.5	12.9	16.0	22.7	25.2	28.7	33.8	34.3	32.7	25.9	18.4	17.4
Average daytime temperature (°C)	2.3	4.8	3.9	11.0	19.9	22.5	26.2	26.7	22.7	13.5	9.8	7.5
Average temperature (°C)	-2.4	-1.8	-2.6	4.4	14.1	17.3	20.3	20.6	16.9	7.7	4.4	2.1
Average night temperature (°C)	-6.3	-7.2	-7.6	-1.0	8.7	12.6	14.4	15.4	11.6	3.1	-0.4	-1.7
Absolute minimum temperature (°C)	-29.1	-28.5	-17.6	-12.1	-0.8	8.3	9.4	10.6	6.4	-9.1	-10.6	-6.3

The best time to visit Town of Keystone during the most sunny months:

Months with the longest average daylight duration in Town of Keystone:

The largest precipitation sum in Town of Keystone is at

May — 114(mm)

June — 165(mm)

October — 78(mm)

When is the best time to visit Town of Keystone?

The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Town of Keystone.

What is the weather like in Town of Keystone?

See average temperature, rainfall and daylight hours for Town of Keystone by month in the table above.

How many sunny days does Town of Keystone have?

The monthly weather statistics above show sunshine and rainfall patterns for Town of Keystone throughout the year.