Records for Hillsboro Area, Oregon (HIOthr) on 05-01
Record Highs
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1: 87°F (2014)
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2: 87°F (1998)
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3: 83°F (1945)
Record Lows
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1: 28°F (1954)
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2: 30°F (2013)
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3: 31°F (1964)
Lowest Highs
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1: 57°F (1998)
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2: 53°F (1957)
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3: 51°F (1995)
Highest Lows
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1: 50°F (1963)
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2: 51°F (1969)
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3: 52°F (2012)
Highest May temperature:
100°F on 05-29-1983.
Lowest May temperature:
26°F on 05-08-1935.
Average temperature is 53.4°F
Average high is 65.4°F
Average low is 41.5°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 0.84" (1949)
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2: 0.66" (1984)
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3: 0.66" (1932)
Precipitation data from 1929 to 2022.