Records for Hillsboro Area, Oregon (HIOthr) on 09-24
Record Highs
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1: 94°F (1974)
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2: 91°F (1943)
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3: 89°F (1997)
Record Lows
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1: 32°F (2000)
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2: 33°F (1970)
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3: 34°F (2007)
Lowest Highs
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1: 59°F (2014)
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2: 57°F (1960)
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3: 56°F (1997)
Highest Lows
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1: 55°F (1933)
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2: 58°F (1958)
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3: 58°F (1934)
Highest September temperature:
103°F on 09-03-1988.
Lowest September temperature:
29°F on 09-17-1965.
Average temperature is 59.8°F
Average high is 73.7°F
Average low is 45.9°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 0.78" (1973)
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2: 0.75" (1986)
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3: 0.58" (1992)
Precipitation data from 1929 to 2022.