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  3. Watertown
  4. January

Watertown, SD Climate in January

Temperature for January

In Watertown, SD during January the average high temperature is 22.9°F. The hottest day on record was January 24, 1981 when the temperature recorded was 64.0°F.

Watertown, SD daily average and extreme temperature range for January

Low Temperature

Overnight in January the average temperature drops below freezing at 3.8°F, with the lowest temperature of -34.1°F being recorded on January 15, 2009. On average there are 23 days in January when the temperature stays below freezing all day. In the worst January there were 31 days when the temperature did not make it above freezing. Overnight temperatures drop below freezing between 1 and 31 times in January.

Precipitation for January

In January the average monthly rainfall in Watertown, SD is 0.43 inches with rain usually falling on between 1 and 2 days. 1949 was the driest January with only 0.00 inches of rain falling, and 1980 was the wettest January with 2.66 inches of rain. The wettest single day in January was 4 January 1980 when 1.02 inches of rain fell.

In January it usually snows on between 11 and 12 days.

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