Superior, United States experiences average highs of 10°C (50°F) and lows of 3°C (37°F) throughout the year. Rainfall is moderate, averaging about 10 rainy days per month. Average highs have stayed broadly stable across the available records.
Superior, United States Weather & Climate 2026
Monthly climate averages for Superior, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Apr–Oct At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.5/10
Best: June, July, August, September
UV Index
4
Low
Temperature 10°C / 3°C
Feels Like 7°C / -1°C
Rainy Days 10
Rainfall 77 mm
Sunshine 8 h
Humidity 74%
Wind Speed 24 km/h
Dew Point 2°C
Snow Days 8 days
Frost Days 21 days
Hottest Month
25°C
July
Avg Low17°C
Rain10days
Coldest Month
-12°C
January
Avg High-6°C
Rain6days
Driest Month
6days
January
Avg High-6°C
Avg Low-12°C
Windiest Month
28 km/h
November (Gusts 44)
Worst Time to Visit
Consider avoiding March, April, November, December due to very cold temperatures.
Sun Position
Sunrise 05:15
Daylight 15.8h
Sunset 21:05
Live conditions—
Superior on the map · live conditions
Superior, United States
- Continent
- Americas
- Country
- United States
- City
- Superior
- Population
- 26.6K
- Elevation
- 196 m
- Coordinates
- 46.72°, -92.10°
Seasonal Breakdown
Spring
Mar–May
Avg High 8°C
Avg Low 1°C
Rain 10 days/mo
Summer
Jun–Aug
Avg High 23°C
Avg Low 16°C
Rain 10 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 13°C
Avg Low 7°C
Rain 10 days/mo
1/3 best months
Winter
Dec–Feb
Avg High -4°C
Avg Low -11°C
Rain 7 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: -6°C / -12°C . Feb: -4°C / -12°C . Mar: 2°C / -5°C . Apr: 7°C / 0°C . May: 15°C / 7°C . Jun: 21°C / 13°C . Jul: 25°C / 17°C . Aug: 24°C / 17°C . Sep: 21°C / 15°C . Oct: 13°C / 8°C . Nov: 5°C / 0°C . Dec: -2°C / -8°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 24 mm. Feb: 31 mm. Mar: 61 mm. Apr: 96 mm. May: 96 mm. Jun: 92 mm. Jul: 92 mm. Aug: 93 mm. Sep: 114 mm. Oct: 94 mm. Nov: 64 mm. Dec: 66 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 77%. Feb: 73%. Mar: 73%. Apr: 73%. May: 72%. Jun: 74%. Jul: 76%. Aug: 76%. Sep: 75%. Oct: 71%. Nov: 72%. Dec: 78%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 24 km/h . Feb: 25 km/h . Mar: 24 km/h . Apr: 25 km/h . May: 23 km/h . Jun: 22 km/h . Jul: 19 km/h . Aug: 20 km/h . Sep: 24 km/h . Oct: 27 km/h . Nov: 28 km/h . Dec: 27 km/h .
Sunshine
Sunshine
Sunshine: Jan: 5h. Feb: 7h. Mar: 8h. Apr: 9h. May: 11h. Jun: 12h. Jul: 12h. Aug: 11h. Sep: 9h. Oct: 7h. Nov: 5h. Dec: 4h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 5. May: UV 6. Jun: UV 6. Jul: UV 7. Aug: UV 6. Sep: UV 5. Oct: UV 3. Nov: UV 2. Dec: UV 1.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 11 days. Feb: 11 days. Mar: 9 days. Apr: 7 days. May: 1 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 2 days. Nov: 8 days. Dec: 15 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 11 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 25°C | Jul · 25°C |
| Coldest month | Jan 2025 · -15°C | Jan · -12°C |
| Wettest month | Jul 2025 · 166 mm | Sep · 114 mm |
| Windiest month | Dec 2025 · 31 km/h | Nov · 28 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May
Fair June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | -6°C / -12°C | -11°C / -18°C | 6days (24 mm) Good | 5.2h Fair | 77% Humid | 1.8 Low | Poor | View Details |
| February | -4°C / -12°C | -10°C / -18°C | 7days (31 mm) Good | 7.1h Good | 73% Muggy | 2.9 Moderate | Poor | View Details |
| March | 2°C / -5°C | -2°C / -10°C | 8days (61 mm) Wet | 8.1h Good | 73% Muggy | 3.8 Moderate | Poor | View Details |
| April | 7°C / 0°C | 3°C / -5°C | 12days (96 mm) Wet | 8.5h Good | 73% Muggy | 4.5 Moderate | Poor | View Details |
| May | 15°C / 7°C | 13°C / 3°C | 11days (96 mm) Wet | 10.5h Excellent | 72% Muggy | 5.8 High | Fair | View Details |
| June best | 21°C / 13°C | 21°C / 12°C | 11days (92 mm) Wet | 11.7h Excellent | 74% Muggy | 6.1 High | Excellent | View Details |
| July best | 25°C / 17°C | 26°C / 17°C | 10days (92 mm) Wet | 12.3h Excellent | 76% Humid | 6.7 High | Excellent | View Details |
| August best | 24°C / 17°C | 25°C / 17°C | 10days (93 mm) Wet | 10.8h Excellent | 76% Humid | 5.9 High | Excellent | View Details |
| September best | 21°C / 15°C | 20°C / 13°C | 10days (114 mm) Wet | 8.8h Good | 75% Muggy | 4.5 Moderate | Excellent | View Details |
| October | 13°C / 8°C | 10°C / 3°C | 12days (94 mm) Wet | 6.6h Fair | 71% Muggy | 3.1 Moderate | Fair | View Details |
| November | 5°C / 0°C | 0°C / -6°C | 9days (64 mm) Wet | 5.1h Fair | 72% Muggy | 1.9 Low | Poor | View Details |
| December | -2°C / -8°C | -8°C / -14°C | 9days (66 mm) Wet | 4.3h Fair | 78% Humid | 1.4 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Superior are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Superior, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Superior is July, with average daytime highs of 25°C (76°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Superior is January, with average overnight lows of -12°C (10°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Superior is September, averaging 114mm of precipitation across 10 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Superior runs through April, October, May, June, with the heaviest rainfall in April. Based on 10-year averages for Superior.
Superior receives approximately 99 sunshine hours per year. The sunniest month is July with around 12 hours. Based on climate data for Superior.
The least favorable months to visit Superior are March, April, November, December, primarily due to very cold temperatures. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Superior is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Superior is 74%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Superior receives snow. Months with snowfall average 8 snow days and 16 cm (6 in) of accumulation, with about 21 frost days during winter.
Average wind speeds in Superior are 24 km/h (15 mph). The windiest month is November with peak winds reaching 28 km/h (17 mph) (gusts up to 44 km/h / 27 mph).
Superior averages 3 clear-sky days per month with overall cloud cover around 61%. The clearest skies occur in July.
The annual average dew point in Superior is 2°C (36°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Superior has a Warm-Summer Continental climate, classified as Dfb under the Köppen system. Continental climates experience extreme temperature ranges — hot summers and cold, snowy winters.
The 'feels like' temperature in Superior ranges from -1°C (30°F) to 7°C (45°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, June is a great time to visit Superior. It earns a climate score of 7.8/10 with Excellent.
For June in Superior, pack Umbrella, Waterproof jacket, Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. With average highs of 21°C (70°F) and 11 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
Last updated: