All Countries
Grundy Center, IA
Full City Profile · Iowa · Grundy County County
3.3
/5.0
B
Good
2,794
Population
1,087/sq mi density
$77,540
Median Income
$39,292 per capita
$173,200
Home Value
$189,762 Zillow
$684
Median Rent
25.4% income on rent
47°F
Avg Temperature
260 sunny days/yr
552
Violent Crime/100K
2,880 property/100K
B
Overall
3.3 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.4 / 5.0
$77,540 median income, 0.6% unemployment
A+
Affordability
5.0 / 5.0
$173,200 home value, $684/mo rent
F
Safety
1.0 / 5.0
552 violent crimes/100K (45% above avg)
C+
Education
2.9 / 5.0
24.2% bachelor's degree or higher
Grundy Center experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 17°F in January while summers reach 73°F in July. The area gets 260 sunny days per year. Annual precipitation totals 36.8 inches. The area receives 32.3 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
17°F Jan (-8°C)
73°F Jul (23°C)
| Annual Average | 47.1°F |
| 13% below US avg | |
| January Average | 17°F (-8°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 1,018 ft (310 m) |
| Area | 2.5 sq mi (6.6 km²) |
| Population Density | 1,087/sq mi |
| Coordinates | 42.3637°N, 92.7740°W |
| Timezone | America/Chicago |
| County | Grundy County County |
| Nearest Airport | Waterloo Regional (ALO) 23 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 13.1 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 94.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-8°C) | 0.9 in | Coldest, Driest |
| February | 22°F (-5°C) | 1.0 in | |
| March | 34°F (1°C) | 2.2 in | |
| April | 48°F (9°C) | 3.2 in | |
| May | 60°F (16°C) | 4.2 in | |
| June | 70°F (21°C) | 4.7 in | Wettest |
| July | 73°F (23°C) | 4.6 in | Warmest |
| August | 70°F (21°C) | 4.0 in | |
| September | 63°F (17°C) | 3.5 in | |
| October | 50°F (10°C) | 2.6 in | |
| November | 35°F (2°C) | 1.8 in | |
| December | 21°F (-6°C) | 1.3 in |
Grundy Center has a seasonal temperature swing of 55°F / from 17°F in January to 73°F in July. Total annual precipitation is 33.8 inches, with June being the wettest month (4.7") and January the driest (0.9").