-6 to 24°C
temperature
2926 hours
sunshine per day
483 mm
rain
111 days
dry
110 days
rain
144 days
snow

Climate of Big Sky

Big Sky has a continental climate. It is warm in the summer and cold in the winter. The average annual temperature for Big Sky is 17° degrees and there is about 191 inch of rain in a year. It is dry for 138 days a year with an average humidity of 75% and an UV-index of 3.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between -6°C and 24°C
  • Night:the average nighttime temperature is between -14°C and 7°C
  • Rain: it rains 110 days and there is a total of approximately 483 mm rainfall
  • Snow: it snows an average of 144 days per year
  • Sun hours: throughout the year there are 2926 sun hours
Maximum temperature: between -6°C and 24°C
Warmest month: 24°C in July
Coldest month: -6°C in December
Night temperature: between -14°C and 7°C
Dry days: 111 days
Days with rain: 110 days
Days with snow: 144 days
Total rain sum: 483 mm
Hours of sunshine: 2926 hours

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Temperature graph

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

Precipitation graph

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

Climate table of Big Sky

In this climate table you can see at a glance what the average weather per month is for Big Sky. 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 Big Sky might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°F) 25 25 33 40 52 65 75 73 64 47 32 22
Night temp. (°F) 10 10 18 23 31 39 45 45 40 29 17 8
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (inch) 12 16 18 22 22 17 9 13 14 17 16 13
Days with rain 5 4 8 9 15 15 11 12 11 9 5 6
Days with snow 18 19 21 20 12 3 - - 3 13 16 19
Dry days 8 5 2 1 4 12 20 19 16 9 9 6
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 5 5 7 8 10 11 12 12 10 7 6 4
Wind force (Bft) 3 2 2 2 2 2 2 2 2 2 2 2
UV-index 1 1 2 1 3 4 5 4 3 2 2 2

Best time to visit Big Sky

The best time to visit Big Sky in the state of Montana is from June through September. In this period you have a pleasant temperature and almost no precipitation. The highest average temperature in Big Sky is 75°F in July and the lowest is 22°F in December.

Climate of Big Sky by month

What is the average climate in a given month for Big Sky? 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.

Big Sky weather experiences

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