Records for Hillsboro Area, Oregon (HIOthr) on 05-24
Record Highs
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1: 89°F (1943)
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2: 88°F (1983)
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3: 87°F (1938)
Record Lows
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1: 33°F (1935)
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2: 34°F (1973)
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3: 34°F (1934)
Lowest Highs
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1: 57°F (1985)
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2: 56°F (2003)
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3: 55°F (1958)
Highest Lows
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1: 56°F (1989)
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2: 56°F (1962)
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3: 58°F (2012)
Highest May temperature:
100°F on 05-29-1983.
Lowest May temperature:
26°F on 05-08-1935.
Average temperature is 58.2°F
Average high is 70.1°F
Average low is 46.3°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 0.62" (1989)
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2: 0.36" (1974)
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3: 0.28" (1973)
Precipitation data from 1929 to 2022.