Records for Ontario Area, Oregon (ONOthr) on 05-28
Record Highs
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1: 100°F (2003)
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2: 97°F (1986)
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3: 97°F (1983)
Record Lows
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1: 30°F (1954)
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2: 35°F (1977)
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3: 36°F (2011)
Lowest Highs
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1: 63°F (2018)
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2: 62°F (2002)
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3: 61°F (1986)
Highest Lows
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1: 55°F (2011)
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2: 62°F (2004)
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3: 62°F (1989)
Highest May temperature:
103°F on 05-29-1986.
Lowest May temperature:
25°F on 05-01-1946.
Average temperature is 63.6°F
Average high is 77°F
Average low is 50.2°F
Temperature data from 1945 to 2022.
Record Precipitation
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1: 0.38" (1964)
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2: 0.27" (2004)
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3: 0.19" (2011)
Precipitation data from 1945 to 2022.