Climate Comfort Score
44/100
Moderate
NOAA 1991–2020 normals 41°F annual avg Public-domain federal data
Superior, WI Climate
Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →
- 41°F
- Avg annual temp
- 44/100
- Comfort score
- 31.4"
- Annual precip
- 156d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Superior
Superior, Wisconsin averages 41°F a year and scores 44/100 on the comfort index - moderate, milder than 8% of U.S. cities.
- 41°F
- yearly average temperature, NOAA normal
- 44/100
- comfort score, milder than 8% of U.S. cities
- 31.4"
- annual precipitation · 56" snow
- 156 days
- frost-free growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
41°F (5°C)
Avg High
49°F
Avg Low
34°F
Annual Precip
31.4"
Annual Snow
56.0"
Comfort Score
44/100
Moderate
Avg Annual Temperature
41°F
30-year mean (NOAA NCEI)
Annual Precipitation
31.4"
Plus 56.0" of snow
Comfort score vs national 100-point ceiling (Superior) 44.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Superior area.
How Superior compares to every U.S. city
Superior's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
44 Top 92% higher than 8% of 6,915 US cities
Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Warming context for Superior
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Superior captures average conditions across the spread shown, the most recent decade is warmer than the 30-year mean.
- United States land mean (NOAA NCEI) +0.11 °C/decade
- Global anomaly (NASA GISTEMP) +0.11 °C/decade
- Paris Agreement thresholds 1.5°C / 2.0°C
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 23°F (-5°C) | 6°F (-15°C) | 14°F (-10°C) | 0.8" | 14.5" | 30.7 | 0.0 |
| February | 27°F (-3°C) | 9°F (-13°C) | 18°F (-8°C) | 0.9" | 12.4" | 27.2 | 0.0 |
| March | 36°F (2°C) | 21°F (-6°C) | 29°F (-2°C) | 1.4" | 9.1" | 26.9 | 0.0 |
| April | 46°F (8°C) | 32°F (0°C) | 39°F (4°C) | 2.6" | 1.7" | 14.6 | 0.0 |
| May | 57°F (14°C) | 41°F (5°C) | 49°F (10°C) | 3.4" | 0.0" | 1.9 | 0.0 |
| June | 67°F (19°C) | 50°F (10°C) | 58°F (15°C) | 4.6" | 0.0" | 0.0 | 0.5 |
| July | 76°F (24°C) | 58°F (14°C) | 67°F (19°C) | 3.9" | 0.0" | 0.0 | 1.8 |
| August | 75°F (24°C) | 58°F (14°C) | 66°F (19°C) | 3.9" | 0.0" | 0.0 | 0.8 |
| September | 67°F (19°C) | 50°F (10°C) | 58°F (15°C) | 3.4" | 0.0" | 0.5 | 0.1 |
| October | 53°F (12°C) | 39°F (4°C) | 46°F (8°C) | 3.2" | 0.2" | 6.7 | 0.0 |
| November | 39°F (4°C) | 26°F (-4°C) | 32°F (0°C) | 2.1" | 5.8" | 22.3 | 0.0 |
| December | 27°F (-3°C) | 13°F (-10°C) | 20°F (-7°C) | 1.3" | 12.3" | 29.9 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 0.8"
Snow: 14.5"
7.1 days with precipitation
February 0.9"
Snow: 12.4"
5.6 days with precipitation
March 1.4"
Snow: 9.1"
7.1 days with precipitation
April 2.6"
Snow: 1.7"
8.8 days with precipitation
May 3.4"
11.6 days with precipitation
June 4.6"
11.5 days with precipitation
July 3.9"
10.4 days with precipitation
August 3.9"
9.6 days with precipitation
September 3.4"
9.9 days with precipitation
October 3.2"
Snow: 0.2"
9.7 days with precipitation
November 2.1"
Snow: 5.8"
8.1 days with precipitation
December 1.3"
Snow: 12.3"
7.0 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 9
50% probability date
Last Spring Freeze
May 6
50% probability date
Growing Season
156 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,822
Higher = more heating needed
Cooling Degree Days
267
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Superior's climate means for you
Superior runs 41°F a year - peaking in July, coldest in January.
- Gardeners get about 156 frost-free days, with the last spring freeze near May 6 - plan the planting calendar around it, not the regional average.
- Energy bills track 8,822 heating and 267 cooling degree days a year, higher means the furnace or AC runs more.
- Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings
These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.
Climate Guides
Climate Insight: Superior, WI
In Superior, Wisconsin, the NOAA 1991–2020 climate normals put the annual average temperature at 41°F, ranging from a mean daily high of 49°F to a mean daily low of 34°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00478349, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Beyond temperature, Superior averages 31.4 inches of precipitation annually, with 56.0 inches typically falling as snow - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 156 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 6 and the first fall freeze near October 9. Turning to energy use, 8,822 heating degree days and 267 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Superior scores 44/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and January-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.
Frequently Asked Questions
What is the average temperature in Superior, WI? ▼
The average annual temperature in Superior, Wisconsin is 41°F. The warmest month averages 76°F (24°C) and the coldest averages 6°F (-15°C).
How much rain does Superior get? ▼
Superior receives 31.4 inches of precipitation annually, including 56.0 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Superior? ▼
Superior has a climate comfort score of 44/100 (Moderate), milder than 8% of U.S. cities in the PlainClimate database.
When is the growing season in Superior? ▼
Superior has approximately 156 frost-free days per year, with the last spring freeze around May 6 and the first fall freeze around October 9.
How much energy does heating and cooling require in Superior? ▼
Superior has 8,822 heating degree days and 267 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Superior climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00478349 near Superior.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00478349. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial
Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.