Portland climate

Typical historical weather for Portland, 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 Portland.

Annual average

10.3°C

across all months

Warmest month

28.1°C

Jul average high

Coolest month

-6.5°C

Jan average low

Annual rainfall

998mm

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

35.1°C

28 May 2018

Coldest day

-25.5°C

21 January 2019

Wettest day

71.2mm

16 August 2016

Windiest day

9.7m/s

8 March 2017