Records for Hillsboro Area, Oregon (HIOthr) on 05-05
Record Highs
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1: 90°F (1992)
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2: 88°F (1990)
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3: 88°F (1966)
Record Lows
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1: 32°F (1937)
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2: 33°F (1965)
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3: 33°F (1952)
Lowest Highs
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1: 55°F (1998)
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2: 55°F (1989)
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3: 55°F (1957)
Highest Lows
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1: 52°F (1963)
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2: 52°F (1950)
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3: 53°F (1965)
Highest May temperature:
100°F on 05-29-1983.
Lowest May temperature:
26°F on 05-08-1935.
Average temperature is 54.5°F
Average high is 66.6°F
Average low is 42.4°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 0.84" (1963)
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2: 0.61" (1948)
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3: 0.52" (1959)
Precipitation data from 1929 to 2022.