Records for Hillsboro Area, Oregon (HIOthr) on 12-11
Record Highs
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1: 61°F (2014)
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2: 60°F (1956)
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3: 58°F (1978)
Record Lows
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1: 5°F (1972)
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2: 5°F (1932)
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3: 8°F (2009)
Lowest Highs
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1: 50°F (1956)
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2: 49°F (1977)
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3: 49°F (1946)
Highest Lows
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1: 23°F (1972)
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2: 28°F (1932)
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3: 34°F (1961)
Highest December temperature:
64°F on 12-01-1951.
Lowest December temperature:
-2°F on 12-08-1972.
Average temperature is 39.8°F
Average high is 46.3°F
Average low is 33.3°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 1.58" (1993)
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2: 1.41" (1969)
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3: 1.23" (2010)
Precipitation data from 1929 to 2022.