Climate Insights for Superior

The climate in Superior is cool. The average annual temperature is 6°C and approximately 944mm of precipitation falls per year. Superior receives a notable amount of rainfall throughout the year, including during its driest month. Superior is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, February, when temperatures can drop to -13°C. Snowfall occurs from January to December, with around 199cm accumulating over the season.

Superior has a wide annual temperature range, spanning 37°C from the coldest to warmest months. August is the warmest month, though highs remain moderate at 24°C with a mean of 20°C. The coldest month is January, when overnight lows fall to -13°C and the daily average is -10°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between November and December, with a 13°C shift in average temperatures.

Superior is a moderately rainy area, receiving approximately 944mm of precipitation annually, which averages out to around 79mm per month. The wettest month is June, averaging 137mm of rainfall. September and July also tend to see above-average precipitation. The driest month is February, with just 30mm. That's 107mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 199cm accumulating over the season. March typically sees the most snow at around 50cm.

Superior is relatively calm, with an average annual wind speed of 4km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 5km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.

It is currently summer in Superior, which began on June 21, 2026. Superior is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 24°C, while the coldest stretch bottoms out in January near -13°C. Autumn is next, beginning on September 23, 2026 — 52 days from now.

The best time to visit Superior is during August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 65mm per month. By contrast, January can be quite cold with temperatures dropping to -13°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Superior based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.