Records for Waterloo Area, Iowa (ALOthr) on 05-20
Record Highs
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1: 97°F (1934)
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2: 92°F (1975)
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3: 90°F (1925)
Record Lows
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1: 31°F (1954)
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2: 31°F (1924)
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3: 32°F (1907)
Lowest Highs
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1: 72°F (1975)
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2: 65°F (2021)
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3: 65°F (1921)
Highest Lows
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1: 48°F (2015)
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2: 52°F (1990)
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3: 55°F (1915)
Highest May temperature:
108°F on 05-31-1934.
Lowest May temperature:
22°F on 05-03-2005.
Average temperature is 63.1°F
Average high is 74.4°F
Average low is 51.9°F
Temperature data from 1895 to 2022.
Record Precipitation
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1: 1.28" (1933)
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2: 0.92" (1911)
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3: 0.78" (1951)
Precipitation data from 1895 to 2022.