Records for Ontario Area, Oregon (ONOthr) on 05-19
Record Highs
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1: 95°F (1954)
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2: 94°F (1964)
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3: 94°F (1958)
Record Lows
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1: 31°F (2003)
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2: 31°F (1960)
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3: 32°F (1989)
Lowest Highs
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1: 61°F (2007)
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2: 58°F (1993)
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3: 57°F (1956)
Highest Lows
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1: 59°F (2019)
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2: 59°F (1996)
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3: 60°F (1957)
Highest May temperature:
103°F on 05-29-1986.
Lowest May temperature:
25°F on 05-01-1946.
Average temperature is 61.3°F
Average high is 74.8°F
Average low is 47.8°F
Temperature data from 1945 to 2022.
Record Precipitation
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1: 0.89" (1953)
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2: 0.49" (1957)
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3: 0.44" (2020)
Precipitation data from 1945 to 2022.