Grand Teton National Park
-6 to 23°C
temperature
2851 hours
sunshine per day
603 mm
rain
110 days
dry
105 days
rain
150 days
snow

Climate of Grand Teton National Park

Grand Teton National Park has a continental climate. In the summer it is warm and dry, and in the winter it is cold and wet. The average annual temperature for Grand Teton National Park is 7° degrees and there is about 602 mm of rain in a year. It is dry for 131 days a year with an average humidity of 76% 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 23°C
  • Night:the average nighttime temperature is between -16°C and 7°C
  • Rain: it rains 105 days and there is a total of approximately 603 mm rainfall
  • Snow: it snows an average of 150 days per year
  • Sun hours: throughout the year there are 2851 sun hours
Maximum temperature: between -6°C and 23°C
Warmest month: 23°C in July
Coldest month: -6°C in December
Night temperature: between -16°C and 7°C
Dry days: 110 days
Days with rain: 105 days
Days with snow: 150 days
Total rain sum: 603 mm
Hours of sunshine: 2851 hours

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Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Grand Teton National Park.

Precipitation graph

This graph shows the average amount of rainfall per month for Grand Teton National Park.

Climate table of Grand Teton National Park

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

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) -5 -4 -1 3 10 17 23 22 18 8 -1 -6
Night temp. (°C) -16 -14 -11 -8 -2 3 7 6 3 -3 -10 -16
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 62 82 68 58 47 37 20 29 30 47 59 64
Days with rain 3 5 8 9 16 13 10 11 10 10 5 5
Days with snow 21 23 24 20 8 2 - - 1 10 18 23
Dry days 7 - - 1 7 15 21 20 19 11 7 3
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 4 4 5 8 11 11 12 12 10 6 5 4
Wind force (Bft) 2 2 2 2 2 2 2 2 2 2 2 2
UV-index 1 1 1 2 3 4 5 4 3 1 1 1

Best time to visit Grand Teton National Park

The best time to visit Grand Teton National Park is July through September. In this period you have a pleasant temperature and almost no precipitation. The highest average temperature in Grand Teton National Park is 23°C in July and the lowest is -6°C in December.

Climate of Grand Teton National Park by month

What is the average climate in a given month for Grand Teton National Park? 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.

Grand Teton National Park weather experiences

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