Boulder climate

Typical historical weather for Boulder, 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 Boulder.

Annual average

4.1°C

across all months

Warmest month

26.6°C

Jul average high

Coolest month

-12.8°C

Feb average low

Annual rainfall

616mm

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

34.4°C

23 July 2024

Coldest day

-44°C

13 January 2024

Wettest day

59.3mm

13 June 2017

Windiest day

6.7m/s

5 April 2022