Records for Hillsboro Area, Oregon (HIOthr) on 05-16
Record Highs
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1: 93°F (2008)
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2: 93°F (1956)
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3: 88°F (1958)
Record Lows
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1: 36°F (2002)
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2: 36°F (1980)
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3: 36°F (1943)
Lowest Highs
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1: 56°F (1934)
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2: 55°F (1938)
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3: 54°F (1997)
Highest Lows
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1: 51°F (1966)
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2: 54°F (2003)
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3: 54°F (1998)
Highest May temperature:
100°F on 05-29-1983.
Lowest May temperature:
26°F on 05-08-1935.
Average temperature is 57°F
Average high is 69.1°F
Average low is 44.9°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 0.78" (1998)
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2: 0.57" (1996)
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3: 0.40" (1972)
Precipitation data from 1929 to 2022.