Records for Waterloo Area, Iowa (ALOthr) on 05-21
Record Highs
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1: 93°F (1934)
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2: 90°F (1970)
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3: 90°F (1921)
Record Lows
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1: 33°F (1931)
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2: 34°F (1895)
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3: 35°F (1997)
Lowest Highs
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1: 70°F (1934)
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2: 67°F (2021)
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3: 67°F (1970)
Highest Lows
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1: 50°F (1969)
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2: 52°F (1963)
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3: 53°F (2019)
Highest May temperature:
108°F on 05-31-1934.
Lowest May temperature:
22°F on 05-03-2005.
Average temperature is 63.5°F
Average high is 74.8°F
Average low is 52.3°F
Temperature data from 1895 to 2022.
Record Precipitation
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1: 1.49" (2004)
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2: 1.47" (1939)
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3: 1.27" (1913)
Precipitation data from 1895 to 2022.