Elm Grove, WI
Full City Profile · Wisconsin · Waukesha County County
4.3
/5.0
A
Great
6,428
Population
1,972/sq mi density
$133,304
Median Income
$70,716 per capita
$468,000
Home Value
$696,876 Zillow
$1,788
Median Rent
27.6% income on rent
48°F
Avg Temperature
A
Overall
4.3 / 5.0
Strong
A+
Economy
5.0 / 5.0
$133,304 median income, 0.3% unemployment
A+
Affordability
4.7 / 5.0
$468,000 home value, $1,788/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
A+
Education
5.0 / 5.0
67.0% bachelor's degree or higher
Elm Grove experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 22°F in January while summers reach 73°F in July. Annual precipitation totals 33.8 inches. The area receives 39.5 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
22°F Jan (-6°C)
73°F Jul (23°C)
| Annual Average | 48.3°F |
| 11% below US avg | |
| January Average | 22°F (-6°C) |
| July Average | 73°F (23°C) |
Geography
| Elevation | 794 ft (242 m) |
| Area | 3.3 sq mi (8.5 km²) |
| Population Density | 1,972/sq mi |
| Coordinates | 43.0475°N, 88.0870°W |
| Timezone | America/Chicago |
| County | Waukesha County County |
| Nearest Airport | General Mitchell International (MKE) 12 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
| Good Days % | 71.0% |
| Unhealthy Days | 1 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0501 ppm |
| PM2.5 (Fine Particles) | 10.4 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 88.9 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 97.4 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively High |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-6°C) | 1.5 in | Coldest, Driest |
| February | 25°F (-4°C) | 1.5 in | |
| March | 35°F (2°C) | 1.8 in | |
| April | 46°F (8°C) | 3.7 in | |
| May | 58°F (14°C) | 3.7 in | |
| June | 68°F (20°C) | 4.8 in | Wettest |
| July | 73°F (23°C) | 3.6 in | Warmest |
| August | 71°F (22°C) | 3.7 in | |
| September | 64°F (18°C) | 3.0 in | |
| October | 51°F (11°C) | 2.7 in | |
| November | 39°F (4°C) | 2.1 in | |
| December | 28°F (-2°C) | 1.7 in |
Elm Grove has a seasonal temperature swing of 51°F / from 22°F in January to 73°F in July. Total annual precipitation is 33.8 inches, with June being the wettest month (4.8") and January the driest (1.5").