Records for Ontario Area, Oregon (ONOthr) on 05-10
Record Highs
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1: 91°F (2013)
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2: 91°F (1960)
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3: 90°F (1949)
Record Lows
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1: 28°F (1999)
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2: 30°F (2022)
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3: 32°F (2008)
Lowest Highs
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1: 57°F (1968)
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2: 52°F (1954)
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3: 51°F (2018)
Highest Lows
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1: 54°F (2010)
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2: 55°F (1970)
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3: 57°F (2000)
Highest May temperature:
103°F on 05-29-1986.
Lowest May temperature:
25°F on 05-01-1946.
Average temperature is 58.4°F
Average high is 71.9°F
Average low is 44.9°F
Temperature data from 1945 to 2022.
Record Precipitation
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1: 0.44" (1998)
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2: 0.39" (1967)
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3: 0.32" (2010)
Precipitation data from 1945 to 2022.