Records for Hillsboro Area, Oregon (HIOthr) on 09-22
Record Highs
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1: 97°F (1952)
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2: 95°F (1994)
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3: 92°F (2009)
Record Lows
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1: 34°F (1961)
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2: 35°F (2005)
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3: 36°F (1946)
Lowest Highs
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1: 59°F (2020)
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2: 58°F (2014)
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3: 58°F (1976)
Highest Lows
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1: 59°F (1973)
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2: 60°F (1933)
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3: 62°F (2013)
Highest September temperature:
103°F on 09-03-1988.
Lowest September temperature:
29°F on 09-17-1965.
Average temperature is 60.4°F
Average high is 74.5°F
Average low is 46.3°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 0.53" (1973)
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2: 0.47" (1933)
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3: 0.45" (1972)
Precipitation data from 1929 to 2022.