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Watertown Weather Records

Watertown, South Dakota weather data and records from 1893–2022 based on data compiled by the NOAA.
All data displayed in U.S. customary units.
All data displayed in metric units.
All-Time Recorded High
The highest temperature ever recorded in Watertown, South Dakota was 109.9 °F43.3 °C which occurred on July 21, 1934.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Watertown, South Dakota was -40.0 °F-40.0 °C which occurred on January 13, 1916.
Lowest Temperatures: All-Time By Year
Watertown Weather by Month
Averages based on the years 1991–2020
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
☀️ Average high (°F°C) 21.6-5.8 26.1-3.3 38.93.8 54.412.5 67.319.6 77.025.0 82.127.8 79.826.6 71.822.1 56.513.6 39.94.4 26.5-3.0 53.712.1
🌙 Average low (°F°C) 3.3-15.9 7.0-13.9 19.8-6.8 31.8-0.1 44.77.0 55.513.1 60.115.6 57.714.3 48.79.3 35.41.9 21.5-5.8 9.6-12.5 33.20.7
☀️ Record high (°F°C) 64.918.3 66.018.9 82.027.8 95.035.0 106.041.1 107.141.7 109.943.3 105.140.6 104.040.0 91.032.8 78.125.6 69.120.6 109.943.3
🌙 Record low (°F°C) -40.0-40.0 -38.0-38.9 -27.0-32.8 -9.9-23.3 16.0-8.9 25.0-3.9 35.11.7 32.00.0 9.0-12.8 -2.0-18.9 -20.0-28.9 -36.8-38.2 -40.0-40.0
💧 Average precipitation (inchescm) 0.51.3 0.61.5 1.02.5 2.15.3 2.87.2 3.910.0 3.07.5 2.97.4 2.56.2 1.94.8 0.71.7 0.71.7 22.857.8
💧 Daily % chance precipitation 19.0 21.1 22.2 29.5 36.7 37.8 30.6 27.8 28.2 24.1 18.1 20.4 26.4
❄️ Average snow (inchescm) 7.118.0 9.022.9 5.413.8 5.213.3 0.10.2 0.00.0 0.00.0 0.00.0 0.00.0 1.43.5 4.511.3 8.822.4 41.1104.4
❄️ Daily % chance snow 18.3 20.9 11.5 6.4 0.1 0.0 0.0 0.0 0.1 3.5 8.8 19.4 7.3
More Watertown Weather Records
1893–2022
Highest daily low 78.1 °F25.6 °C July 16, 2012
Lowest daily high -25.1 °F-31.7 °C February 8, 1899
Most daily precipitation 7.1 inches18.1 cm May 27, 1931
Most monthly precipitation 11.4 inches28.9 cm June 1991
Most yearly precipitation 40.1 inches101.8 cm 1977
Earliest freeze September 3 1974
Latest freeze June 21 1902
Earliest snow September 21 1995
Latest snow May 14 1907
Most daily snow 19.0 inches48.3 cm April 25, 2008
Most monthly snow 29.5 inches75.0 cm April 2008
Most yearly snow 79.7 inches202.4 cm 2019
Watertown Weather Streaks
Most consecutive days...
With precipitation 10 days May 29 – Jun 7, 1980
Without precipitation 59 days Nov 29, 1943 – Jan 26, 1944
With snow 7 days Dec 21–27, 2009
High temperature ≤ 32 °F0 °C
freezing temperatures
 68 days Dec 18, 1977 – Feb 23, 1978
High temperature ≥ 80 °F27 °C 60 days Jul 6 – Sep 3, 1983
High temperature ≥ 90 °F32 °C 16 days Jul 4–19, 1936
High temperature ≥ 100 °F38 °C 10 days Jul 9–18, 1936
Watertown Weather by Year
1893 1894 1895 1897 1898 1899 1900 1901 1902 1903
1904 1905 1906 1907 1908 1909 1910 1911 1912 1913
1914 1915 1916 1917 1918 1919 1920 1921 1922 1923
1924 1925 1926 1927 1928 1929 1930 1931 1932 1933
1934 1935 1936 1937 1938 1939 1940 1941 1942 1943
1944 1945 1946 1947 1948 1949 1950 1951 1952 1953
1954 1955 1956 1957 1958 1959 1960 1961 1962 1963
1964 1965 1966 1967 1968 1969 1970 1971 1972 1973
1974 1975 1976 1977 1978 1979 1980 1981 1982 1983
1984 1985 1986 1987 1988 1989 1990 1991 1992 1993
1994 1995 1996 1997 1998 1999 2000 2001 2002 2003
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
2014 2015 2016 2017 2018 2019 2020 2021 2022
More
Weather Station Details
Years Station Coordinates
1893–2022 Watertown Regional Airport location
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