Garden Grove, IA
Full City Profile · Iowa · Decatur County County
3.6
/5.0
B+
Good
178
Population
262/sq mi density
$53,750
Median Income
$23,937 per capita
$48,600
Home Value
$75,072 Zillow
$535
Median Rent
41.3% income on rent
50°F
Avg Temperature
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.4 / 5.0
$53,750 median income, 1.3% unemployment
A+
Affordability
5.0 / 5.0
$48,600 home value, $535/mo rent
C
Education
2.3 / 5.0
16.4% bachelor's degree or higher
Garden Grove experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 23°F in January while summers reach 74°F in July. Annual precipitation totals 39.3 inches. The area receives 28.5 inches of snow annually.
Temperature
23°F Jan (-5°C)
74°F Jul (23°C)
| Annual Average | 49.6°F |
| 8% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 74°F (23°C) |
Geography
| Elevation | 1,115 ft (340 m) |
| Area | 0.7 sq mi (1.8 km²) |
| Population Density | 262/sq mi |
| Coordinates | 40.8267°N, 93.6069°W |
| Timezone | America/Chicago |
| County | Decatur County County |
| Nearest Airport | Des Moines International (DSM) 47 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 23.6 / 100 |
| Social Vulnerability | 43.0 / 100 |
| Community Resilience | 41.1 / 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 | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Relatively High |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 0.9 in | Coldest, Driest |
| February | 27°F (-3°C) | 1.5 in | |
| March | 39°F (4°C) | 2.3 in | |
| April | 50°F (10°C) | 3.8 in | |
| May | 60°F (16°C) | 5.5 in | |
| June | 70°F (21°C) | 5.6 in | Wettest |
| July | 74°F (23°C) | 4.4 in | Warmest |
| August | 72°F (22°C) | 4.5 in | |
| September | 63°F (17°C) | 4.2 in | |
| October | 52°F (11°C) | 3.2 in | |
| November | 39°F (4°C) | 2.1 in | |
| December | 28°F (-2°C) | 1.4 in |
Garden Grove has a seasonal temperature swing of 52°F / from 23°F in January to 74°F in July. Total annual precipitation is 39.3 inches, with June being the wettest month (5.6") and January the driest (0.9").