Records for Hillsboro Area, Oregon (HIOthr) on 12-23
Record Highs
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1: 64°F (1950)
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2: 59°F (1964)
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3: 56°F (1967)
Record Lows
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1: 4°F (1998)
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2: 10°F (1990)
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3: 12°F (1983)
Lowest Highs
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1: 51°F (1950)
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2: 46°F (1967)
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3: 45°F (2014)
Highest Lows
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1: 20°F (1990)
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2: 21°F (1983)
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3: 24°F (1998)
Highest December temperature:
64°F on 12-01-1951.
Lowest December temperature:
-2°F on 12-08-1972.
Average temperature is 39.2°F
Average high is 45.5°F
Average low is 32.9°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 1.32" (1971)
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2: 1.23" (1949)
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3: 0.82" (1975)
Precipitation data from 1929 to 2022.