The year at a glance
Averages from 30 years of climate history, 1991-2020
| Duluth | Metric | Superior |
|---|---|---|
| 168 days | Sunny daysclear or partly cloudy skies | 170 days |
| 33 in | Precipitationper year | 35 in |
| 129 days | Wet daysrain or snow per year | 131 days |
| 69 in | Snowfallper year | 58 in |
| 2 days | Hot daysabove 90 °F | 3 days |
| 168 days | Freezing nightsat or below 32 °F | 163 days |
| 75% | Humidityaverage relative | 74% |
| 41 °F | Average temperatureyear round | 41 °F |
Monthly temperatures
Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Duluth high | 21 | 26 | 35 | 46 | 57 | 67 | 76 | 74 | 66 | 52 | 38 | 26 |
| Superior high | 22 | 27 | 36 | 46 | 57 | 67 | 76 | 75 | 67 | 53 | 39 | 27 |
| Duluth low | 4 | 8 | 19 | 31 | 41 | 49 | 58 | 59 | 50 | 38 | 25 | 12 |
| Superior low | 5 | 9 | 20 | 31 | 41 | 49 | 58 | 58 | 50 | 38 | 26 | 13 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Duluth | 1.0 | 1.0 | 1.7 | 3.0 | 3.6 | 4.2 | 4.0 | 3.9 | 3.3 | 3.3 | 2.2 | 1.5 |
| Superior | 1.0 | 1.1 | 1.9 | 3.3 | 3.8 | 4.1 | 3.9 | 4.0 | 3.6 | 4.1 | 2.6 | 1.8 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Duluth | 10 | 11 | 13 | 14 | 15 | 16 | 20 | 20 | 17 | 14 | 9 | 9 |
| Superior | 11 | 12 | 14 | 14 | 15 | 16 | 21 | 20 | 18 | 14 | 9 | 8 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Duluth vs another city
- Duluth vs Hermantown, MN
- Duluth vs Cloquet, MN
- Duluth vs Virginia, MN
- Duluth vs Hibbing, MN
- Duluth vs Ashland, WI
- Duluth vs New York, NY
- Duluth vs Los Angeles, CA
- Duluth vs Chicago, IL
- Duluth vs Houston, TX
- Duluth vs Phoenix, AZ
- Duluth vs Philadelphia, PA
Superior vs another city
- Superior vs Hermantown, MN
- Superior vs Cloquet, MN
- Superior vs Ashland, WI
- Superior vs Virginia, MN
- Superior vs Hibbing, MN
- Superior vs New York, NY
- Superior vs Los Angeles, CA
- Superior vs Chicago, IL
- Superior vs Houston, TX
- Superior vs Phoenix, AZ
- Superior vs Philadelphia, PA
About this data
Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.
Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).