Records for Hillsboro Area, Oregon (HIOthr) on 09-04
Record Highs
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1: 98°F (1955)
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2: 97°F (1973)
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3: 95°F (2003)
Record Lows
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1: 31°F (1930)
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2: 39°F (2015)
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3: 39°F (1933)
Lowest Highs
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1: 59°F (2013)
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2: 59°F (1974)
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3: 58°F (2017)
Highest Lows
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1: 62°F (1978)
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2: 63°F (1970)
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3: 63°F (1937)
Highest September temperature:
103°F on 09-03-1988.
Lowest September temperature:
29°F on 09-17-1965.
Average temperature is 64.6°F
Average high is 79.7°F
Average low is 49.6°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 1.72" (1945)
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2: 0.63" (1959)
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3: 0.37" (1938)
Precipitation data from 1929 to 2022.