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Spring Green, WI
Full City Profile · Wisconsin · Iowa County County
4.1
/5.0
A
Great
1,499
Population
898/sq mi density
$89,375
Median Income
$42,016 per capita
$238,000
Home Value
$362,573 Zillow
$1,012
Median Rent
22.9% income on rent
47°F
Avg Temperature
260 sunny days/yr
A
Overall
4.1 / 5.0
Strong
A+
Economy
4.8 / 5.0
$89,375 median income, 1.9% unemployment
A+
Affordability
5.0 / 5.0
$238,000 home value, $1,012/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
A
Education
4.2 / 5.0
39.6% bachelor's degree or higher
Spring Green experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 19°F in January while summers reach 72°F in July. The area gets 260 sunny days per year. Annual precipitation totals 34.1 inches. Air quality is rated Good with a median AQI of 38.
Temperature
19°F Jan (-7°C)
72°F Jul (22°C)
| Annual Average | 47.3°F |
| 12% below US avg | |
| January Average | 19°F (-7°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 725 ft (221 m) |
| Area | 1.8 sq mi (4.7 km²) |
| Population Density | 898/sq mi |
| Coordinates | 43.1776°N, 90.0688°W |
| Timezone | America/Chicago |
| County | Iowa County County |
| Nearest Airport | Tri-County Regional (LNR) 6 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 23.4 / 100 |
| Social Vulnerability | 12.2 / 100 |
| Community Resilience | 93.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 19°F (-7°C) | 1.1 in | Coldest |
| February | 21°F (-6°C) | 1.0 in | Driest |
| March | 33°F (0°C) | 2.1 in | |
| April | 46°F (8°C) | 3.0 in | |
| May | 57°F (14°C) | 3.4 in | |
| June | 67°F (19°C) | 4.1 in | Wettest |
| July | 72°F (22°C) | 4.0 in | Warmest |
| August | 69°F (20°C) | 3.6 in | |
| September | 61°F (16°C) | 3.9 in | |
| October | 49°F (10°C) | 2.1 in | |
| November | 35°F (2°C) | 1.9 in | |
| December | 22°F (-6°C) | 1.5 in |
Spring Green has a seasonal temperature swing of 53°F / from 19°F in January to 72°F in July. Total annual precipitation is 31.8 inches, with June being the wettest month (4.1") and February the driest (1.0").