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Watertown (SD) Weather and Climate: A Comprehensive Guide

Watertown experiences great temperature shifts. The city's weather can transition from warm days to very cold weather. It maintains moderate precipitation patterns. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

The climate in Watertown is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 28°C in July to a very cold -5°C in the coolest month, January.

Nights are cooler, with lows often dropping to around -16°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Watertown receives mid-range precipitation levels, with 577 mm annually. The climate in Watertown shows significant variation throughout the year. Expect moderate rainfall in June, with an average of 92 mm of precipitation over 11 rainy days.

In contrast, November offers drier and sunnier days, with around 9.6 mm of snow/rainfall over 4 snowy/rainy days. For more details, please visit our Watertown Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for Watertown (SD)

Mon   Dec 23
-3°C | -7°C
N 4 m/s
overcast and no rain

overcast and no rain

Tue   Dec 24
0°C | -7°C
S 4 m/s
partly cloudy and no rain

partly cloudy and no rain

Wed   Dec 25
2°C | -3°C
S 6 m/s
partly cloudy and no rain

partly cloudy and no rain

The best time of year to visit Watertown in the United States of America

During the months of June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Does Watertown have a dry season?
    Yes, the months of January and November are very dry.
  • When is winter in Watertown?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Watertown?
    July has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Watertown?
    The coldest month is January with an average maximum temperature of -5°C.
  • Which is the wettest month in Watertown?
    June tops the wettest month list with 92 mm of rainfall.
  • Which is the driest month in Watertown?
    November is the driest month with 10 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.