Tri-Cities climate

Typical historical weather for Tri-Cities, 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 Tri-Cities.

Annual average

13.7°C

across all months

Warmest month

35.8°C

Jul average high

Coolest month

-1.6°C

Jan average low

Annual rainfall

253mm

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

47.8°C

29 June 2021

Coldest day

-19.7°C

12 January 2017

Wettest day

19.2mm

9 October 2016

Windiest day

8.8m/s

4 April 2022