Janesville and South Beloit have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Janesville | Metric | South Beloit |
|---|---|---|
| 182 days | Sunny daysclear or partly cloudy skies | 183 days |
| 35 in | Precipitationper year | 36 in |
| 124 days | Wet daysrain or snow per year | 124 days |
| 37 in | Snowfallper year | 36 in |
| 12 days | Hot daysabove 90 °F | 9 days |
| 147 days | Freezing nightsat or below 32 °F | 143 days |
| 71% | Humidityaverage relative | 71% |
| 48 °F | Average temperatureyear round | 46 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Janesville high | 28 | 32 | 44 | 58 | 69 | 79 | 83 | 81 | 75 | 61 | 46 | 33 |
| South Beloit high | 25 | 29 | 42 | 55 | 67 | 76 | 80 | 78 | 71 | 58 | 43 | 31 |
| Janesville low | 11 | 15 | 25 | 36 | 48 | 58 | 62 | 59 | 51 | 39 | 28 | 18 |
| South Beloit low | 11 | 14 | 24 | 35 | 46 | 56 | 60 | 58 | 50 | 39 | 28 | 17 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Janesville | 1.8 | 1.7 | 2.4 | 4.0 | 3.9 | 4.1 | 3.3 | 3.6 | 3.3 | 2.8 | 2.2 | 2.0 |
| South Beloit | 1.8 | 1.8 | 2.4 | 4.1 | 4.0 | 4.0 | 3.4 | 3.5 | 3.3 | 2.8 | 2.3 | 2.1 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Janesville | 12 | 12 | 14 | 13 | 15 | 16 | 20 | 20 | 19 | 16 | 14 | 12 |
| South Beloit | 12 | 12 | 14 | 13 | 15 | 16 | 20 | 20 | 19 | 17 | 14 | 12 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Janesville vs another city
- Janesville vs Milton, WI
- Janesville vs Edgerton, WI
- Janesville vs Beloit, WI
- Janesville vs Evansville, WI
- Janesville vs Rockton, IL
- Janesville vs New York, NY
- Janesville vs Los Angeles, CA
- Janesville vs Chicago, IL
- Janesville vs Houston, TX
- Janesville vs Phoenix, AZ
- Janesville vs Philadelphia, PA
South Beloit vs another city
- South Beloit vs Beloit, WI
- South Beloit vs Rockton, IL
- South Beloit vs Roscoe, IL
- South Beloit vs Machesney Park, IL
- South Beloit vs Loves Park, IL
- South Beloit vs Candlewick Lake, IL
- South Beloit vs New York, NY
- South Beloit vs Los Angeles, CA
- South Beloit vs Chicago, IL
- South Beloit vs Houston, TX
- South Beloit vs Phoenix, AZ
- South Beloit 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).