All Countries
Birnamwood, WI
Full City Profile · Wisconsin · Marathon County County
2.9
/5.0
C+
Fair
688
Population
313/sq mi density
$50,000
Median Income
$31,520 per capita
$134,800
Home Value
$255,971 Zillow
$584
Median Rent
25.0% income on rent
44°F
Avg Temperature
270 sunny days/yr
88
Violent Crime/100K
5,093 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.9 / 5.0
$50,000 median income, 1.7% unemployment
A+
Affordability
5.0 / 5.0
$134,800 home value, $584/mo rent
F
Safety
1.0 / 5.0
88 violent crimes/100K
D
Education
1.8 / 5.0
10.2% bachelor's degree or higher
Birnamwood has a cool climate with an average annual temperature of 44°F (7°C). Winters average 15°F in January while summers reach 70°F in July. The area gets 270 sunny days per year. Annual precipitation totals 34.0 inches. Air quality is rated Good with a median AQI of 38.
Temperature
15°F Jan (-9°C)
70°F Jul (21°C)
| Annual Average | 44.3°F |
| 18% below US avg | |
| January Average | 15°F (-9°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 270 days/yr |
Geography
| Elevation | 1,301 ft (397 m) |
| Area | 2.2 sq mi (5.7 km²) |
| Population Density | 313/sq mi |
| Coordinates | 44.9319°N, 89.2095°W |
| Timezone | America/Chicago |
| County | Marathon County County |
| Nearest Airport | Appleton International (ATW) 58 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0454 ppm |
| PM2.5 (Fine Particles) | 10.7 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 87.2 / 100 |
| Social Vulnerability | 24.6 / 100 |
| Community Resilience | 86.7 / 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 | Relatively High |
| Ice Storm | Relatively Low |
| Drought | No Rating |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 15°F (-9°C) | 1.0 in | Coldest |
| February | 17°F (-9°C) | 0.9 in | Driest |
| March | 28°F (-2°C) | 1.7 in | |
| April | 42°F (5°C) | 2.7 in | |
| May | 54°F (12°C) | 3.6 in | |
| June | 63°F (17°C) | 3.6 in | |
| July | 70°F (21°C) | 3.8 in | Warmest |
| August | 66°F (19°C) | 4.1 in | |
| September | 57°F (14°C) | 4.1 in | Wettest |
| October | 46°F (8°C) | 2.5 in | |
| November | 31°F (-0°C) | 2.0 in | |
| December | 18°F (-8°C) | 1.3 in |
Birnamwood has a seasonal temperature swing of 54°F / from 15°F in January to 70°F in July. Total annual precipitation is 31.3 inches, with September being the wettest month (4.1") and February the driest (0.9").