-6 to 19°C
temperature
3120 hours
sunshine per day
489 mm
rain
115 days
dry
106 days
rain
144 days
snow

Climate of Keystone

Keystone has a continental climate. It is warm in the summer and cold in the winter. The average annual temperature for Keystone is 6° degrees and there is about 489 mm of rain in a year. It is dry for 139 days a year with an average humidity of 73% and an UV-index of 2.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between -6°C and 19°C
  • Night:the average nighttime temperature is between -17°C and 4°C
  • Rain: it rains 106 days and there is a total of approximately 489 mm rainfall
  • Snow: it snows an average of 144 days per year
  • Sun hours: throughout the year there are 3120 sun hours
Maximum temperature: between -6°C and 19°C
Warmest month: 19°C in July
Coldest month: -6°C in December
Night temperature: between -17°C and 4°C
Dry days: 115 days
Days with rain: 106 days
Days with snow: 144 days
Total rain sum: 489 mm
Hours of sunshine: 3120 hours

Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Keystone.

Precipitation graph

This graph shows the average amount of rainfall per month for Keystone.

Climate table of Keystone

In this climate table you can see at a glance what the average weather per month is for Keystone. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Keystone might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) -5 -5 -1 1 8 17 19 18 15 7 0 -6
Night temp. (°C) -17 -17 -13 -10 -5 2 4 3 1 -5 -12 -17
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 24 31 46 45 60 34 76 52 37 33 26 25
Days with rain 4 4 4 5 12 12 22 18 12 6 3 4
Days with snow 15 18 18 20 18 5 1 2 6 12 12 17
Dry days 12 6 9 5 1 13 8 11 12 13 15 10
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 5 5 8 9 11 12 11 12 11 7 6 5
Wind force (Bft) 2 2 2 2 2 2 2 2 2 2 2 2
UV-index 2 1 1 2 3 4 4 4 2 2 2 1

Best time to visit Keystone

The best time to visit Keystone is in July and August. In this period you have a pleasant temperature and little precipitation. The highest average temperature in Keystone is 19°C in July and the lowest is -6°C in December.

Climate of Keystone by month

What is the average climate in a given month for Keystone? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

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