Records for Ontario Area, Oregon (ONOthr) on 05-17
Record Highs
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1: 98°F (1973)
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2: 95°F (2006)
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3: 94°F (2008)
Record Lows
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1: 29°F (1974)
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2: 30°F (1965)
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3: 34°F (2011)
Lowest Highs
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1: 58°F (2014)
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2: 58°F (2010)
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3: 58°F (1972)
Highest Lows
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1: 53°F (1994)
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2: 56°F (2017)
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3: 59°F (2019)
Highest May temperature:
103°F on 05-29-1986.
Lowest May temperature:
25°F on 05-01-1946.
Average temperature is 60.7°F
Average high is 74.2°F
Average low is 47.2°F
Temperature data from 1945 to 2022.
Record Precipitation
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1: 0.59" (2018)
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2: 0.47" (1994)
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3: 0.38" (2019)
Precipitation data from 1945 to 2022.