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Watertown Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January5°F23°F14°F0.4"
February7°F27°F16°F0.6"
March22°F41°F30°F1.1"
April33°F57°F44°F1.9"
May45°F69°F56°F3.0"
June56°F78°F67°F3.7"
July61°F84°F72°F2.6"
August58°F81°F69°F3.6"
September50°F74°F61°F2.8"
October37°F58°F47°F2.3"
November23°F43°F32°F0.4"
December9°F26°F17°F0.7"

Did you know?

  • The highest monthly average temperature in Watertown for July is 72 degrees.
  • The lowest monthly average temperature in Watertown for January is 14 degrees.
  • The most monthly precipitation in Watertown occurs in June with 3.7 inches.
  • The air quality index in Watertown is 27% better than the national average.
  • The pollution index in Watertown is 88% better than the national average.

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Watertown air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexWatertownSouth DakotaNational
Air quality index363650
Pollution index580,913463,9835,066,862

Watertown air quality information

MeasurementTotal
Days measured361
Days with good air quality278
Days with moderate air quality83
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Watertown air quality information

PollutantTotal
Arsenic0.000%
Benzene0.010%
Carbon Tetrachloride0.002%
Lead0.004%
Mercury0.000%

Average monthly Watertown temperature with heat index

Watertown monthly precipitation with daily maximum

Watertown monthly snow depth with daily maximum

Watertown monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Florence, SD3293628%
South Shore, SD2073628%
Goodwin, SD1253628%
Waverly, SD93628%
Hazel, SD1033628%
Watertown, SD22,0263628%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Rancho San Diego, CA22,0186122%
Willowbrook, CA22,0357448%
Union Hill-Novelty Hill, WA22,015492%
South Holland, IL22,0406020%
Affton, MO22,0606020%
Watertown, SD22,0263628%
Source: The Watertown, SD weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.