Records for Hillsboro Area, Oregon (HIOthr) on 08-31
Record Highs
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1: 100°F (1998)
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2: 98°F (1987)
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3: 94°F (1950)
Record Lows
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1: 34°F (1930)
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2: 38°F (2008)
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3: 38°F (1964)
Lowest Highs
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1: 62°F (1974)
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2: 61°F (1961)
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3: 60°F (2022)
Highest Lows
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1: 62°F (1937)
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2: 63°F (1980)
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3: 64°F (2010)
Highest August temperature:
106°F on 08-17-1977.
Lowest August temperature:
30°F on 08-30-1930.
Average temperature is 65.2°F
Average high is 80.4°F
Average low is 50.1°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 0.68" (1939)
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2: 0.39" (1991)
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3: 0.33" (1961)
Precipitation data from 1929 to 2022.