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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
More
Weather Station Details
Years Station Coordinates
1893–2022 Watertown Regional Airport location