Records for Hillsboro Area, Oregon (HIOthr) on 09-19
Record Highs
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1: 95°F (1952)
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2: 92°F (1999)
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3: 90°F (1991)
Record Lows
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1: 33°F (1947)
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2: 35°F (1983)
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3: 35°F (1965)
Lowest Highs
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1: 60°F (1952)
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2: 59°F (1949)
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3: 58°F (2000)
Highest Lows
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1: 60°F (1980)
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2: 61°F (2004)
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3: 62°F (1969)
Highest September temperature:
103°F on 09-03-1988.
Lowest September temperature:
29°F on 09-17-1965.
Average temperature is 61.3°F
Average high is 75.7°F
Average low is 47°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 0.67" (2021)
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2: 0.53" (1981)
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3: 0.50" (1969)
Precipitation data from 1929 to 2022.