Records for Hillsboro Area, Oregon (HIOthr) on 12-19
Record Highs
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1: 60°F (1994)
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2: 59°F (1961)
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3: 57°F (1972)
Record Lows
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1: 15°F (1964)
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2: 16°F (1984)
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3: 20°F (1945)
Lowest Highs
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1: 51°F (1994)
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2: 48°F (1979)
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3: 48°F (1972)
Highest Lows
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1: 22°F (1964)
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2: 30°F (1965)
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3: 32°F (2006)
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 45.6°F
Average low is 32.9°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 2.37" (1941)
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2: 1.65" (1932)
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3: 1.45" (1953)
Precipitation data from 1929 to 2022.