Records for Hillsboro Area, Oregon (HIOthr) on 09-11
Record Highs
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1: 97°F (2013)
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2: 96°F (2015)
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3: 95°F (2017)
Record Lows
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1: 35°F (1936)
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2: 37°F (2012)
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3: 38°F (1986)
Lowest Highs
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1: 62°F (2014)
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2: 58°F (2004)
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3: 58°F (2000)
Highest Lows
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1: 61°F (1941)
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2: 62°F (1985)
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3: 64°F (1930)
Highest September temperature:
103°F on 09-03-1988.
Lowest September temperature:
29°F on 09-17-1965.
Average temperature is 63.3°F
Average high is 78.1°F
Average low is 48.5°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 0.46" (1930)
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2: 0.39" (2018)
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3: 0.37" (1985)
Precipitation data from 1929 to 2022.