Olmsted, IL
Full City Profile · Illinois · Pulaski County County
2.9
/5.0
C+
Fair
257
Population
76/sq mi density
$34,375
Median Income
$21,068 per capita
$775
Median Rent
23.8% income on rent
58°F
Avg Temperature
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B
Economy
3.3 / 5.0
$34,375 median income, 0.0% unemployment
A
Affordability
4.1 / 5.0
F
Education
1.5 / 5.0
5.7% bachelor's degree or higher
Olmsted enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 35°F in January while summers reach 79°F in July. Annual precipitation totals 49.4 inches. The area receives 7.2 inches of snow annually.
Temperature
35°F Jan (1°C)
79°F Jul (26°C)
| Annual Average | 57.9°F |
| 7% above US avg | |
| January Average | 35°F (1°C) |
| July Average | 79°F (26°C) |
Geography
| Elevation | 393 ft (120 m) |
| Area | 1.4 sq mi (3.5 km²) |
| Population Density | 76/sq mi |
| Coordinates | 37.1824°N, 89.0840°W |
| Timezone | America/Chicago |
| County | Pulaski County County |
| Nearest Airport | Cairo Regional (CIR) 11 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 49.1 / 100 |
| Social Vulnerability | 82.4 / 100 |
| Community Resilience | 16.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 35°F (1°C) | 4.2 in | Coldest |
| February | 39°F (4°C) | 3.9 in | |
| March | 47°F (8°C) | 4.8 in | |
| April | 58°F (14°C) | 5.2 in | Wettest |
| May | 67°F (19°C) | 4.9 in | |
| June | 75°F (24°C) | 4.1 in | |
| July | 79°F (26°C) | 3.3 in | Warmest |
| August | 78°F (26°C) | 3.0 in | Driest |
| September | 72°F (22°C) | 3.4 in | |
| October | 60°F (15°C) | 4.0 in | |
| November | 48°F (9°C) | 4.4 in | |
| December | 39°F (4°C) | 4.2 in |
Olmsted has a seasonal temperature swing of 44°F / from 35°F in January to 79°F in July. Total annual precipitation is 49.4 inches, with April being the wettest month (5.2") and August the driest (3.0").