Watertown, WI Weather & Climate Normals
What a normal year in Watertown actually looks like
On the 30-year record NOAA keeps for Watertown, WI, the comfort score comes out to 42/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 5 months a year land in the 55–75°F range this site treats as mild.
How much Watertown's weather actually swings
Average temperatures in Watertown run from 19°F in Jan up to 73°F in Jul, a 53.9°F seasonal swing, one of the widest gaps in this dataset.
Watertown, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 27°F | 11°F | 1.41in | 10.7in |
| Feb | 31°F | 14°F | 1.52in | 11.4in |
| Mar | 43°F | 25°F | 2.03in | 4.9in |
| Apr | 57°F | 36°F | 3.59in | 2.1in |
| May | 70°F | 48°F | 4.39in | 0.1in |
| Jun | 80°F | 58°F | 5.11in | 0in |
| Jul | 84°F | 62°F | 4.37in | 0in |
| Aug | 81°F | 61°F | 4.5in | 0in |
| Sep | 74°F | 52°F | 3.47in | 0in |
| Oct | 61°F | 40°F | 2.82in | 0.2in |
| Nov | 45°F | 29°F | 2.12in | 2in |
| Dec | 32°F | 18°F | 1.65in | 10.9in |
If you're timing a visit, May, Jun, Jul, Aug, and Sep are Watertown's mildest stretch; if you're moving there, you should plan around Jan's cold instead.
How wet Watertown actually gets
Over a typical year, Watertown sees about 36.98in of precipitation a year across roughly 110 days with measurable rain or snow, with 42.3in of snow a year.
Watertown against the rest of the country
Out of 4876 cities scored here, Watertown comes in at 4205; within WI alone it ranks 100 of 157. Population is about 22,617.
Checking the actual forecast
These figures come from Lake Mills Wwtp, WI US, the NOAA station 11.3 miles from Watertown, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why this uses the nearest NOAA station · How the comfort score is calculated