Records for Hillsboro Area, Oregon (HIOthr) on 10-20
Record Highs
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1: 75°F (2003)
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2: 74°F (1938)
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3: 73°F (2010)
Record Lows
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1: 24°F (1949)
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2: 28°F (1961)
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3: 29°F (1976)
Lowest Highs
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1: 59°F (2003)
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2: 54°F (1940)
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3: 53°F (2014)
Highest Lows
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1: 48°F (1984)
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2: 48°F (1966)
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3: 50°F (1996)
Highest October temperature:
92°F on 10-02-1987.
Lowest October temperature:
20°F on 10-31-2006.
Average temperature is 50.8°F
Average high is 61.7°F
Average low is 39.9°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 1.12" (1946)
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2: 1.10" (1934)
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3: 1.04" (1933)
Precipitation data from 1929 to 2022.