Superior (WI) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Superior.
Climate overview of Superior
Superior, Wisconsin, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 25°C (77°F) in July, while winters cool to -5°C (23°F) in January.
The city receives around 817 mm (32 in) of rain/snowfall per year. It experiences a distinct dry season from January to February. June is the wettest month and January the driest. The most sunshine falls in July, with an average of 10.4 hours of daily sunshine.
Superior Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Superior — and find the best time to visit.
Monthly Temperature in Superior
Depending on the time of the year, temperatures range from comfortable to very cold in Superior. On average, daytime temperatures range from a comfortable 25°C (77°F) in July to a very cold -5°C (23°F) in January.
Nighttime temperatures range from 14°C (57°F) in July to -15°C (5°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Superior
Generally, Superior has a moderate amount of precipitation, averaging 817 mm (32 in) of rain/snowfall annually. The seasons in Superior bring significant changes in precipitation. The wettest month, June, receives high rainfall, with an average of 123 mm (4.8 in) of precipitation. This rainfall is distributed across 13 rainy days.
In contrast, the driest month, January, experiences much less snowfall, totaling 18 mm (0.7 in) over 8 snowy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Superior Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Superior
In Superior, summer days are longer and more sunny, with daily sunshine hours peaking at 10.4 hours in July. As the darker season arrives, the brightness of the sun becomes less. November sees a soft sun for only 3.3 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Superior by Month
The relative humidity is high throughout the year in Superior.
The city experiences its highest humidity in September, reaching 76%. In May, the humidity drops to its lowest level at 63%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Superior
The mean wind speed over the year ranges from 3 m/s (6 knots) in July and August to 4 m/s (8 knots) in January, February, March, April, May, June, September, October, November and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Superior
Rainfall during this time ranges from 77 mm (3 in) in September to 123 mm (4.8 in) in June. This means you can expect a mix of sunny days and occasional showers. Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.
Frequently asked questions about the climate in Superior
What is the best time to visit Superior?
July and September typically offer the most optimal weather in Superior. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Superior has a distinct dry season from January to February.
What temperatures can I expect in Superior?
Daytime highs range from -5°C (23°F) in January to 25°C (77°F) in July. Nighttime lows range from -15°C (5°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Superior get?
Annual rainfall is around 817 mm (32 in). June is the wettest month with 123 mm (4.8 in), while January is the driest with 18 mm (0.7 in).
How sunny is Superior?
Superior receives around 2,366 hours of sunshine per year. July is the sunniest month with 311 hours, while November is the cloudiest with just 100 hours. Overall, Superior enjoys abundant sunshine.
Superior 3-Day Forecast
Superior (WI) 3-Day Forecast
Superior on the map
Superior is highlighted — select any city to see its climate.
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