Highest Daily Low Temperatures in Watertown History

This is a list of the hottest daily low temperatures ever recorded in Watertown, South Dakota history from 1893–2024 based on data from the NOAA.

Highest temperatures all-time

Record for the highest daily low temperature in Watertown

The highest low temperature for a calendar day in Watertown, South Dakota history was 78 °F which has happened 4 times, most recently on Monday July 16, 2012.

Rank	Temperature	Date
1	78 °F	July 16, 2012
1	78 °F	July 19, 2011
1	78 °F	July 6, 1988
1	78 °F	July 5, 1982
5	77 °F	June 30, 2002
5	77 °F	July 15, 1988
5	77 °F	August 14, 1938
5	77 °F	July 11, 1936
5	77 °F	September 7, 1931
10	76 °F	June 19, 2022
10	76 °F	July 18, 2011
10	76 °F	July 17, 2011
10	76 °F	June 26, 1991
10	76 °F	August 16, 1988
10	76 °F	September 14, 1939
10	76 °F	July 17, 1936
10	76 °F	July 9, 1936
10	76 °F	July 20, 1932
19	75 °F	July 24, 2020
19	75 °F	July 21, 2016
19	75 °F	August 25, 2013
19	75 °F	August 1, 2011
19	75 °F	July 16, 2011
19	75 °F	July 15, 2011
19	75 °F	July 18, 1991
19	75 °F	July 31, 1988
19	75 °F	August 18, 1976
19	75 °F	August 1, 1955
19	75 °F	July 24, 1940
19	75 °F	July 8, 1936
19	75 °F	July 7, 1936
19	75 °F	July 19, 1934