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Waltham, MN
Full City Profile · Minnesota · Mower County County
2.7
/5.0
C+
Fair
185
Population
385/sq mi density
$75,833
Median Income
$21,742 per capita
$112,500
Home Value
$274,137 Zillow
$1,069
Median Rent
21.3% income on rent
45°F
Avg Temperature
260 sunny days/yr
266
Violent Crime/100K
2,362 property/100K
C+
Overall
2.7 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.6 / 5.0
$75,833 median income, 7.1% unemployment
A+
Affordability
5.0 / 5.0
$112,500 home value, $1,069/mo rent
F
Safety
1.0 / 5.0
266 violent crimes/100K
F
Education
1.1 / 5.0
1.0% bachelor's degree or higher
Waltham has a cool climate with an average annual temperature of 45°F (7°C). Winters average 14°F in January while summers reach 71°F in July. The area gets 260 sunny days per year. Annual precipitation totals 36.2 inches. The area receives 43.4 inches of snow annually. Air quality is rated Good with a median AQI of 36.
Temperature
14°F Jan (-10°C)
71°F Jul (22°C)
| Annual Average | 44.6°F |
| 17% below US avg | |
| January Average | 14°F (-10°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 1,316 ft (401 m) |
| Area | 0.5 sq mi (1.2 km²) |
| Population Density | 385/sq mi |
| Coordinates | 43.8193°N, 92.8746°W |
| Timezone | America/Chicago |
| County | Mower County County |
| Nearest Airport | Rochester International (RST) 20 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 67.3 / 100 |
| Social Vulnerability | 37.7 / 100 |
| Community Resilience | 83.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | No Rating |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively High |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 14°F (-10°C) | 1.0 in | Coldest |
| February | 19°F (-7°C) | 0.8 in | Driest |
| March | 31°F (-0°C) | 1.8 in | |
| April | 45°F (7°C) | 3.0 in | |
| May | 58°F (14°C) | 3.8 in | |
| June | 68°F (20°C) | 4.1 in | |
| July | 71°F (22°C) | 4.4 in | Warmest, Wettest |
| August | 69°F (21°C) | 4.3 in | |
| September | 60°F (16°C) | 3.7 in | |
| October | 48°F (9°C) | 2.4 in | |
| November | 32°F (0°C) | 1.8 in | |
| December | 18°F (-8°C) | 1.1 in |
Waltham has a seasonal temperature swing of 57°F / from 14°F in January to 71°F in July. Total annual precipitation is 32.0 inches, with July being the wettest month (4.4") and February the driest (0.8").