Superior, WI Weather & Climate Normals
What a normal year in Superior actually looks like
On the 30-year record NOAA keeps for Superior, WI, the comfort score comes out to 35/100, weather-driven: Heat, cold, snow, or rainfall here are heavy enough that they shape daily life for a large part of the year. Only 4 months a year land in the 55–75°F range this site treats as mild.
How much Superior's weather actually swings
Average temperatures in Superior run from 14°F in Jan up to 67°F in Jul, a 52.9°F seasonal swing, one of the widest gaps in this dataset.
Superior, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 23°F | 6°F | 0.81in | 14.5in |
| Feb | 27°F | 9°F | 0.89in | 12.4in |
| Mar | 36°F | 21°F | 1.41in | 9.1in |
| Apr | 46°F | 32°F | 2.64in | 1.7in |
| May | 57°F | 41°F | 3.37in | 0in |
| Jun | 67°F | 50°F | 4.56in | 0in |
| Jul | 76°F | 58°F | 3.88in | 0in |
| Aug | 75°F | 58°F | 3.92in | 0in |
| Sep | 67°F | 50°F | 3.39in | 0in |
| Oct | 53°F | 39°F | 3.17in | 0.2in |
| Nov | 39°F | 26°F | 2.12in | 5.8in |
| Dec | 27°F | 13°F | 1.29in | 12.3in |
If you're timing a visit, Jun, Jul, Aug, and Sep are Superior's mildest stretch; if you're moving there, you should plan around Jan's cold instead.
How wet Superior actually gets
Over a typical year, Superior sees about 31.45in of precipitation a year across roughly 106 days with measurable rain or snow, with 56in of snow a year.
Superior against the rest of the country
Out of 4876 cities scored here, Superior comes in at 4801; within WI alone it ranks 154 of 157. Population is about 26,620.
Checking the actual forecast
These figures come from Superior, WI US, the NOAA station 2.4 miles from Superior, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is