Records for Hillsboro Area, Oregon (HIOthr) on 08-28
Record Highs
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1: 100°F (1967)
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2: 99°F (2017)
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3: 98°F (2019)
Record Lows
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1: 38°F (1980)
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2: 38°F (1937)
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3: 39°F (1965)
Lowest Highs
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1: 66°F (1974)
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2: 61°F (1986)
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3: 60°F (2015)
Highest Lows
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1: 63°F (1964)
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2: 64°F (1991)
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3: 65°F (1975)
Highest August temperature:
106°F on 08-17-1977.
Lowest August temperature:
30°F on 08-30-1930.
Average temperature is 65.7°F
Average high is 80.8°F
Average low is 50.5°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 0.34" (1951)
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2: 0.20" (1953)
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3: 0.14" (1997)
Precipitation data from 1929 to 2022.