Records for Portland Area, Oregon (PDXthr) on 12-31
Record Highs
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1: 58°F (1996)
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2: 58°F (1980)
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3: 55°F (1995)
Record Lows
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1: 9°F (1968)
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2: 13°F (1978)
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3: 21°F (2014)
Lowest Highs
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1: 47°F (2020)
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2: 45°F (1996)
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3: 45°F (1966)
Highest Lows
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1: 19°F (1978)
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2: 19°F (1968)
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3: 32°F (1985)
Highest December temperature:
65°F on 12-10-1993.
Lowest December temperature:
6°F on 12-16-1964.
Average temperature is 40.9°F
Average high is 45.3°F
Average low is 36.5°F
Temperature data from 1940 to 2022.
Record Precipitation
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1: 1.32" (1996)
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2: 1.30" (1979)
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3: 1.11" (1968)
Precipitation data from 1940 to 2022.