Records for Hillsboro Area, Oregon (HIOthr) on 12-16
Record Highs
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1: 60°F (1980)
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2: 60°F (1974)
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3: 59°F (1979)
Record Lows
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1: 12°F (2008)
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2: 17°F (2016)
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3: 17°F (2005)
Lowest Highs
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1: 49°F (1999)
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2: 49°F (1973)
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3: 47°F (1974)
Highest Lows
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1: 32°F (2008)
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2: 32°F (1931)
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3: 33°F (1978)
Highest December temperature:
64°F on 12-01-1951.
Lowest December temperature:
-2°F on 12-08-1972.
Average temperature is 39.4°F
Average high is 45.7°F
Average low is 33°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 2.58" (1982)
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2: 1.28" (1941)
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3: 1.05" (1939)
Precipitation data from 1929 to 2022.