Great Falls climate

Typical historical weather for Great Falls, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Want today's actual conditions instead? See the current forecast for Great Falls.

Annual average

8.2°C

across all months

Warmest month

30.1°C

Jul average high

Coolest month

-9.6°C

Feb average low

Annual rainfall

446mm

total per year

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

● Avg high● Avg low▮ Rainfall

Records on file

Hottest day

39.5°C

24 July 2024

Coldest day

-38.6°C

12 February 2021

Wettest day

35mm

8 May 2024

Windiest day

10.6m/s

13 January 2021