St. Peter, WI
Full City Profile · Wisconsin · Fond du Lac County County
4.7
/5.0
A+
Excellent
1,403
Population
387/sq mi density
$153,400
Median Income
$52,993 per capita
$339,600
Home Value
$338,741 Zillow
47°F
Avg Temperature
A+
Overall
4.7 / 5.0
Strong
A+
Economy
5.0 / 5.0
$153,400 median income, 1.1% unemployment
A+
Affordability
5.0 / 5.0
$339,600 home value, /mo rent
A
Education
4.1 / 5.0
38.7% bachelor's degree or higher
St. Peter experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 19°F in January while summers reach 71°F in July. Annual precipitation totals 28.4 inches. The area receives 38.0 inches of snow annually. Air quality is rated Good with a median AQI of 38.
Temperature
19°F Jan (-7°C)
71°F Jul (22°C)
| Annual Average | 46.5°F |
| 14% below US avg | |
| January Average | 19°F (-7°C) |
| July Average | 71°F (22°C) |
Geography
| Elevation | 1,086 ft (331 m) |
| Area | 3.6 sq mi (9.4 km²) |
| Population Density | 387/sq mi |
| Coordinates | 43.8383°N, 88.3433°W |
| Timezone | America/Chicago |
| County | Fond du Lac County County |
| Nearest Airport | Wittman Regional (OSH) 17 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
| Good Days % | 92.7% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0455 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 76.3 / 100 |
| Social Vulnerability | 16.6 / 100 |
| Community Resilience | 94.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Very Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 19°F (-7°C) | 0.7 in | Coldest |
| February | 22°F (-6°C) | 0.7 in | Driest |
| March | 33°F (1°C) | 1.7 in | |
| April | 45°F (7°C) | 2.8 in | |
| May | 57°F (14°C) | 3.3 in | |
| June | 67°F (20°C) | 4.1 in | Wettest |
| July | 71°F (22°C) | 3.4 in | Warmest |
| August | 69°F (21°C) | 3.5 in | |
| September | 62°F (17°C) | 2.9 in | |
| October | 50°F (10°C) | 2.5 in | |
| November | 37°F (3°C) | 1.8 in | |
| December | 25°F (-4°C) | 0.9 in |
St. Peter has a seasonal temperature swing of 52°F / from 19°F in January to 71°F in July. Total annual precipitation is 28.4 inches, with June being the wettest month (4.1") and February the driest (0.7").