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Cissna Park, IL
Full City Profile · Illinois · Iroquois County County
4.1
/5.0
A
Great
960
Population
1,315/sq mi density
$50,625
Median Income
$37,279 per capita
$117,900
Home Value
$162,212 Zillow
$649
Median Rent
31.5% income on rent
51°F
Avg Temperature
275 sunny days/yr
A
Overall
4.1 / 5.0
Strong
B+
Economy
3.9 / 5.0
$50,625 median income, 0.5% unemployment
A+
Affordability
5.0 / 5.0
$117,900 home value, $649/mo rent
B+
Education
3.5 / 5.0
31.5% bachelor's degree or higher
Cissna Park experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 24°F in January while summers reach 74°F in July. The area gets 275 sunny days per year. Annual precipitation totals 38.4 inches. The area receives 17.1 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
24°F Jan (-4°C)
74°F Jul (23°C)
| Annual Average | 50.7°F |
| 6% below US avg | |
| January Average | 24°F (-4°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 664 ft (202 m) |
| Area | 0.7 sq mi (1.9 km²) |
| Population Density | 1,315/sq mi |
| Coordinates | 40.5670°N, 87.8922°W |
| Timezone | America/Chicago |
| County | Iroquois County County |
| Nearest Airport | Vermilion Regional (DNV) 30 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 74.0 / 100 |
| Social Vulnerability | 34.0 / 100 |
| Community Resilience | 65.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-4°C) | 1.6 in | Coldest, Driest |
| February | 28°F (-2°C) | 1.6 in | |
| March | 39°F (4°C) | 3.0 in | |
| April | 50°F (10°C) | 3.7 in | |
| May | 62°F (17°C) | 4.1 in | Wettest |
| June | 71°F (22°C) | 3.9 in | |
| July | 74°F (23°C) | 4.1 in | Warmest |
| August | 72°F (22°C) | 3.7 in | |
| September | 66°F (19°C) | 3.3 in | |
| October | 54°F (12°C) | 2.8 in | |
| November | 41°F (5°C) | 3.0 in | |
| December | 29°F (-2°C) | 2.6 in |
Cissna Park has a seasonal temperature swing of 50°F / from 24°F in January to 74°F in July. Total annual precipitation is 37.4 inches, with May being the wettest month (4.1") and January the driest (1.6").