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Fillmore, IL
Full City Profile · Illinois · Montgomery County County
2.9
/5.0
C+
Fair
257
Population
389/sq mi density
$47,375
Median Income
$29,354 per capita
$64,700
Home Value
$180,243 Zillow
$613
Median Rent
22.3% income on rent
53°F
Avg Temperature
293 sunny days/yr
208
Violent Crime/100K
1,458 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.9 / 5.0
$47,375 median income, 2.1% unemployment
A+
Affordability
5.0 / 5.0
$64,700 home value, $613/mo rent
F
Safety
1.0 / 5.0
208 violent crimes/100K
D
Education
1.5 / 5.0
6.5% bachelor's degree or higher
Fillmore experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 27°F in January while summers reach 75°F in July. The area gets 293 sunny days per year. Annual precipitation totals 42.5 inches. The area receives 12.8 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
27°F Jan (-3°C)
75°F Jul (24°C)
| Annual Average | 52.5°F |
| 3% below US avg | |
| January Average | 27°F (-3°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 633 ft (193 m) |
| Area | 0.4 sq mi (1.0 km²) |
| Population Density | 389/sq mi |
| Coordinates | 39.1147°N, 89.2789°W |
| Timezone | America/Chicago |
| County | Montgomery County County |
| Nearest Airport | St Louis Regional (ALN) 44 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 65.4 / 100 |
| Social Vulnerability | 55.4 / 100 |
| Community Resilience | 76.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 27°F (-3°C) | 2.0 in | Coldest, Driest |
| February | 31°F (-0°C) | 2.1 in | |
| March | 43°F (6°C) | 3.6 in | |
| April | 54°F (12°C) | 3.9 in | |
| May | 64°F (18°C) | 4.3 in | Wettest |
| June | 73°F (23°C) | 4.1 in | |
| July | 75°F (24°C) | 3.7 in | Warmest |
| August | 75°F (24°C) | 3.0 in | |
| September | 68°F (20°C) | 3.2 in | |
| October | 56°F (13°C) | 2.9 in | |
| November | 44°F (7°C) | 3.7 in | |
| December | 33°F (0°C) | 3.1 in |
Fillmore has a seasonal temperature swing of 48°F / from 27°F in January to 75°F in July. Total annual precipitation is 39.4 inches, with May being the wettest month (4.3") and January the driest (2.0").