Records for Hillsboro Area, Oregon (HIOthr) on 04-15
Record Highs
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1: 83°F (1936)
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2: 81°F (1984)
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3: 81°F (1947)
Record Lows
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1: 29°F (1970)
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2: 29°F (1952)
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3: 30°F (2009)
Lowest Highs
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1: 51°F (1999)
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2: 49°F (1997)
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3: 49°F (1992)
Highest Lows
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1: 47°F (2006)
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2: 48°F (1955)
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3: 49°F (2018)
Highest April temperature:
90°F on 04-29-1957.
Lowest April temperature:
20°F on 04-16-1933.
Average temperature is 49.7°F
Average high is 60.5°F
Average low is 38.9°F
Temperature data from 1929 to 2022.
Record Precipitation
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1: 0.71" (1960)
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2: 0.57" (1982)
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3: 0.56" (2011)
Precipitation data from 1929 to 2022.