Records for Hillsboro Area, Oregon (HIOthr) on 09-17
Record Highs
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1: 94°F (1951)
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2: 93°F (1952)
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3: 91°F (2012)
Record Lows
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1: 29°F (1965)
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2: 36°F (1949)
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3: 38°F (1988)
Lowest Highs
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1: 62°F (1971)
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2: 60°F (2010)
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3: 58°F (1957)
Highest Lows
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1: 59°F (1985)
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2: 60°F (1944)
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3: 61°F (2011)
Highest September temperature:
103°F on 09-03-1988.
Lowest September temperature:
29°F on 09-17-1965.
Average temperature is 61.9°F
Average high is 76.4°F
Average low is 47.4°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 0.73" (1969)
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2: 0.68" (1944)
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3: 0.45" (2019)
Precipitation data from 1929 to 2022.