What is the highest temperature ever recorded in Portland, OR?

The record high temperature in Portland, OR is 116°F, recorded on June 28, 2021.

What is the lowest temperature ever recorded in Portland, OR?

The record low temperature in Portland, OR is 5°F, recorded on December 22, 1998.

Historical Weather in Portland, OR

Name: Portland, OR Temperature Records
Creator: NOAA

See 55+ years of weather history for any date in Portland going back to 1970.

Part of Oregon weather history · Oregon temperature records

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Today in Portland Weather HistorySee records, averages, and 55+ years of data for today's date

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Monthly Climate Averages

Historical temperature and precipitation averages for Portland, OR, based on 55+ years of weather data.

Warmest MonthAugustAvg High: 81°F / Low: 58°F

Coldest MonthDecemberAvg High: 46°F / Low: 36°F

Jan

47°/ 36°

💧 8.1"

❄️ 1.6"

Feb

50°/ 37°

💧 6.8"

❄️ 2.1"

Mar

56°/ 40°

💧 6.2"

❄️ 1.3"

Apr

61°/ 43°

💧 5.0"

❄️ 2.0"

May

68°/ 49°

💧 5.0"

Jun

74°/ 53°

💧 4.7"

Jul

81°/ 58°

💧 3.7"

Aug

81°/ 58°

💧 4.6"

Sep

75°/ 54°

💧 5.9"

Oct

63°/ 47°

💧 6.4"

Nov

53°/ 41°

💧 8.2"

❄️ 2.1"

Dec

46°/ 36°

💧 8.9"

❄️ 1.3"

Temperatures in Fahrenheit. Precipitation and snowfall in inches.

Portland, OR Temperature Range by Month

Average monthly highs and lows. The shaded band shows the typical daily temperature range.

Avg high Avg low

Portland, OR Monthly Precipitation

Average rainfall and snowfall per month, in inches.

Rain (in) Snow (in)

Portland, OR Daily Temperature Calendar

Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.

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Hotter

20°40°60°80°100°

Best Time to Visit Portland, OR

Portland, OR has no months that meet our "pleasant" threshold — every season has tradeoffs.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal

Portland Temperature Records

Record High: The hottest temperature ever recorded in Portland, OR is 116°F, set on June 28, 2021.
Record Low: The coldest temperature ever recorded in Portland, OR is 5°F, set on December 22, 1998.
Data Coverage: Based on 54 years of data from NOAA weather station: PORTLAND KGW-TV.

All-Time Record High

116°F

June 28, 2021

All-Time Record Low

5°F

December 22, 1998

Monthly Temperature Records in Portland

Month	Record High	Record Low
January	67°F(2005)	8°F(2017)
February	71°F(1988)	8°F(1989)
March	84°F(2025)	19°F(1989)
April	90°F(2016)	26°F(2008)
May	103°F(1983)	33°F(2002)
June	116°F(2021)	39°F(1999)
July	108°F(2009)	45°F(1988)
August	108°F(2023)	44°F(1980)
September	105°F(1988)	36°F(1970)
October	92°F(1987)	24°F(2006)
November	73°F(2010)	13°F(1985)
December	67°F(1993)	5°F(1998)