Cairo, IL
Full City Profile · Illinois · Ballard County County
3.0
/5.0
B
Good
1,699
Population
243/sq mi density
$35,493
Median Income
$22,415 per capita
$28,200
Home Value
$34,100 Zillow
$282
Median Rent
22.3% income on rent
58°F
Avg Temperature
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
C
Economy
2.0 / 5.0
$35,493 median income, 17.5% unemployment
A+
Affordability
5.0 / 5.0
$28,200 home value, $282/mo rent
D
Education
1.9 / 5.0
10.9% bachelor's degree or higher
Cairo 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 51.0 inches. The area receives 7.2 inches of snow annually.
Temperature
35°F Jan (2°C)
79°F Jul (26°C)
| Annual Average | 58.1°F |
| 8% above US avg | |
| January Average | 35°F (2°C) |
| July Average | 79°F (26°C) |
Geography
| Elevation | 315 ft (96 m) |
| Area | 7.0 sq mi (18.1 km²) |
| Population Density | 243/sq mi |
| Coordinates | 37.0063°N, 89.1829°W |
| Timezone | America/Chicago |
| County | Ballard County County |
| Nearest Airport | Cairo Regional (CIR) 4 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 39.6 / 100 |
| Social Vulnerability | 54.7 / 100 |
| Community Resilience | 51.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| 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 High |
| Drought | Relatively High |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 35°F (2°C) | 3.8 in | Coldest |
| February | 39°F (4°C) | 3.9 in | |
| March | 48°F (9°C) | 4.9 in | |
| April | 59°F (15°C) | 5.4 in | Wettest |
| May | 68°F (20°C) | 5.1 in | |
| June | 76°F (24°C) | 4.4 in | |
| July | 79°F (26°C) | 4.1 in | Warmest |
| August | 78°F (25°C) | 3.2 in | Driest |
| September | 71°F (21°C) | 3.5 in | |
| October | 59°F (15°C) | 4.1 in | |
| November | 48°F (9°C) | 4.5 in | |
| December | 38°F (4°C) | 4.3 in |
Cairo has a seasonal temperature swing of 45°F / from 35°F in January to 79°F in July. Total annual precipitation is 51.0 inches, with April being the wettest month (5.4") and August the driest (3.2").