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Cairo, IL
Full City Profile · Illinois · Ballard County County
2.5
/5.0
C+
Fair
1,699
Population
243/sq mi density
$35,493
Median Income
$22,415 per capita
$28,200
Home Value
$41,665 Zillow
$282
Median Rent
22.3% income on rent
58°F
Avg Temperature
299 sunny days/yr
3,527
Violent Crime/100K
6,512 property/100K
C+
Overall
2.5 / 5.0
Fair overall score based on economy, affordability, safety and education
C
Economy
2.3 / 5.0
$35,493 median income, 8.4% unemployment
A+
Affordability
5.0 / 5.0
$28,200 home value, $282/mo rent
F
Safety
1.0 / 5.0
3,527 violent crimes/100K (828% above avg)
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. The area gets 299 sunny days per year. Annual precipitation totals 51.0 inches. Air quality is rated Good with a median AQI of 43.
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) |
| Sunny Days | 299 days/yr |
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
| AQI Median | 43.0 |
| Rating | Good |
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) | 3.1 in | Coldest |
| February | 37°F (3°C) | 3.5 in | |
| March | 47°F (8°C) | 4.8 in | |
| April | 57°F (14°C) | 4.6 in | |
| May | 66°F (19°C) | 5.1 in | Wettest |
| June | 75°F (24°C) | 3.8 in | |
| July | 79°F (26°C) | 3.7 in | Warmest |
| August | 77°F (25°C) | 3.7 in | |
| September | 71°F (22°C) | 3.6 in | |
| October | 60°F (15°C) | 3.0 in | Driest |
| November | 48°F (9°C) | 4.2 in | |
| December | 38°F (4°C) | 4.4 in |
Cairo has a seasonal temperature swing of 45°F / from 35°F in January to 79°F in July. Total annual precipitation is 47.6 inches, with May being the wettest month (5.1") and October the driest (3.0").