Records for Hillsboro Area, Oregon (HIOthr) on 09-08
Record Highs
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1: 100°F (1981)
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2: 98°F (1963)
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3: 95°F (1944)
Record Lows
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1: 38°F (2002)
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2: 39°F (1936)
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3: 40°F (1992)
Lowest Highs
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1: 63°F (2020)
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2: 62°F (2017)
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3: 61°F (1990)
Highest Lows
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1: 61°F (1978)
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2: 65°F (1964)
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3: 65°F (1947)
Highest September temperature:
103°F on 09-03-1988.
Lowest September temperature:
29°F on 09-17-1965.
Average temperature is 63.9°F
Average high is 78.8°F
Average low is 49°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 0.60" (1972)
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2: 0.37" (1930)
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3: 0.30" (1978)
Precipitation data from 1929 to 2022.