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Okawville, IL
Full City Profile · Illinois · Washington County County
3.5
/5.0
B+
Good
1,312
Population
646/sq mi density
$84,881
Median Income
$40,150 per capita
$161,400
Home Value
$162,397 Zillow
$736
Median Rent
17.8% income on rent
55°F
Avg Temperature
293 sunny days/yr
367
Violent Crime/100K
1,175 property/100K
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.5 / 5.0
$84,881 median income, 3.1% unemployment
A+
Affordability
5.0 / 5.0
$161,400 home value, $736/mo rent
F
Safety
1.0 / 5.0
367 violent crimes/100K
B+
Education
3.6 / 5.0
33.1% bachelor's degree or higher
Okawville experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 31°F in January while summers reach 77°F in July. The area gets 293 sunny days per year. Annual precipitation totals 45.6 inches. The area receives 10.6 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
31°F Jan (-1°C)
77°F Jul (25°C)
| Annual Average | 55.1°F |
| 2% above US avg | |
| January Average | 31°F (-1°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 431 ft (131 m) |
| Area | 2.0 sq mi (5.3 km²) |
| Population Density | 646/sq mi |
| Coordinates | 38.4344°N, 89.5480°W |
| Timezone | America/Chicago |
| County | Washington County County |
| Nearest Airport | St Louis Regional (ALN) 41 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 55.2 / 100 |
| Social Vulnerability | 42.1 / 100 |
| Community Resilience | 98.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| 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 | 31°F (-1°C) | 2.1 in | Coldest, Driest |
| February | 34°F (1°C) | 2.4 in | |
| March | 44°F (7°C) | 3.7 in | |
| April | 55°F (13°C) | 3.8 in | |
| May | 65°F (18°C) | 4.2 in | Wettest |
| June | 74°F (23°C) | 3.7 in | |
| July | 77°F (25°C) | 3.7 in | Warmest |
| August | 76°F (24°C) | 3.1 in | |
| September | 69°F (20°C) | 3.2 in | |
| October | 57°F (14°C) | 2.9 in | |
| November | 45°F (7°C) | 3.4 in | |
| December | 35°F (1°C) | 3.1 in |
Okawville has a seasonal temperature swing of 46°F / from 31°F in January to 77°F in July. Total annual precipitation is 39.3 inches, with May being the wettest month (4.2") and January the driest (2.1").