Records for Hillsboro Area, Oregon (HIOthr) on 09-13
Record Highs
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1: 92°F (1999)
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2: 92°F (1957)
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3: 91°F (1951)
Record Lows
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1: 31°F (1970)
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2: 36°F (1952)
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3: 39°F (1949)
Lowest Highs
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1: 61°F (2022)
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2: 60°F (2009)
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3: 58°F (2019)
Highest Lows
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1: 60°F (1936)
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2: 61°F (2007)
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3: 62°F (1985)
Highest September temperature:
103°F on 09-03-1988.
Lowest September temperature:
29°F on 09-17-1965.
Average temperature is 62.9°F
Average high is 77.6°F
Average low is 48.1°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 0.49" (1955)
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2: 0.39" (1997)
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3: 0.27" (1968)
Precipitation data from 1929 to 2022.