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Janesville, MN
Full City Profile · Minnesota · Waseca County County
3.3
/5.0
B
Good
2,449
Population
1,590/sq mi density
$72,120
Median Income
$35,721 per capita
$194,400
Home Value
$272,932 Zillow
$839
Median Rent
23.1% income on rent
45°F
Avg Temperature
270 sunny days/yr
221
Violent Crime/100K
1,636 property/100K
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.3 / 5.0
$72,120 median income, 3.2% unemployment
A+
Affordability
5.0 / 5.0
$194,400 home value, $839/mo rent
F
Safety
1.0 / 5.0
221 violent crimes/100K
C+
Education
2.9 / 5.0
23.8% bachelor's degree or higher
Janesville has a cool climate with an average annual temperature of 45°F (7°C). Winters average 13°F in January while summers reach 71°F in July. The area gets 270 sunny days per year. Annual precipitation totals 37.9 inches. The area receives 52.3 inches of snow annually. Air quality is rated Good with a median AQI of 36.
Temperature
13°F Jan (-10°C)
71°F Jul (22°C)
| Annual Average | 44.6°F |
| 17% below US avg | |
| January Average | 13°F (-10°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 270 days/yr |
Geography
| Elevation | 1,065 ft (325 m) |
| Area | 1.5 sq mi (4.0 km²) |
| Population Density | 1,590/sq mi |
| Coordinates | 44.1198°N, 93.7097°W |
| Timezone | America/Chicago |
| County | Waseca County County |
| Nearest Airport | Mankato Regional (MKT) 13 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 24.7 / 100 |
| Social Vulnerability | 31.5 / 100 |
| Community Resilience | 94.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 13°F (-10°C) | 0.8 in | Coldest |
| February | 19°F (-7°C) | 0.6 in | Driest |
| March | 31°F (-0°C) | 1.7 in | |
| April | 46°F (8°C) | 2.6 in | |
| May | 59°F (15°C) | 3.5 in | |
| June | 69°F (20°C) | 4.3 in | Wettest |
| July | 71°F (22°C) | 4.2 in | Warmest |
| August | 69°F (21°C) | 4.0 in | |
| September | 61°F (16°C) | 3.1 in | |
| October | 49°F (9°C) | 2.2 in | |
| November | 32°F (0°C) | 1.6 in | |
| December | 18°F (-8°C) | 0.9 in |
Janesville has a seasonal temperature swing of 58°F / from 13°F in January to 71°F in July. Total annual precipitation is 29.6 inches, with June being the wettest month (4.3") and February the driest (0.6").