Records for Hillsboro Area, Oregon (HIOthr) on 05-29
Record Highs
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1: 100°F (1983)
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2: 92°F (1931)
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3: 91°F (1956)
Record Lows
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1: 32°F (1951)
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2: 33°F (2001)
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3: 35°F (1934)
Lowest Highs
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1: 63°F (1997)
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2: 60°F (1983)
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3: 58°F (1956)
Highest Lows
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1: 53°F (1976)
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2: 56°F (1994)
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3: 57°F (2011)
Highest May temperature:
100°F on 05-29-1983.
Lowest May temperature:
26°F on 05-08-1935.
Average temperature is 58.8°F
Average high is 70.6°F
Average low is 47°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 0.34" (1998)
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2: 0.31" (1970)
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3: 0.26" (1948)
Precipitation data from 1929 to 2022.