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Waterman, IL
Full City Profile · Illinois · DeKalb County County
3.5
/5.0
B+
Good
1,419
Population
934/sq mi density
$97,386
Median Income
$40,005 per capita
$212,900
Home Value
$280,542 Zillow
$897
Median Rent
27.2% income on rent
48°F
Avg Temperature
275 sunny days/yr
98
Violent Crime/100K
488 property/100K
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.9 / 5.0
$97,386 median income, 2.5% unemployment
A+
Affordability
5.0 / 5.0
$212,900 home value, $897/mo rent
F
Safety
1.0 / 5.0
98 violent crimes/100K
B
Education
3.1 / 5.0
25.8% bachelor's degree or higher
Waterman experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 21°F in January while summers reach 71°F in July. The area gets 275 sunny days per year. Annual precipitation totals 37.4 inches. Air quality is rated Good with a median AQI of 43.
Temperature
21°F Jan (-6°C)
71°F Jul (22°C)
| Annual Average | 47.8°F |
| 11% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 806 ft (246 m) |
| Area | 0.6 sq mi (1.5 km²) |
| Population Density | 934/sq mi |
| Coordinates | 41.7656°N, 88.7631°W |
| Timezone | America/Chicago |
| County | DeKalb County County |
| Nearest Airport | Chicago/Rockford International (RFD) 34 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 80.8 / 100 |
| Social Vulnerability | 29.2 / 100 |
| Community Resilience | 75.9 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 1.5 in | Coldest |
| February | 25°F (-4°C) | 1.2 in | Driest |
| March | 36°F (2°C) | 2.5 in | |
| April | 48°F (9°C) | 3.7 in | |
| May | 60°F (16°C) | 3.9 in | |
| June | 69°F (21°C) | 4.3 in | Wettest |
| July | 71°F (22°C) | 4.0 in | Warmest |
| August | 71°F (21°C) | 3.9 in | |
| September | 63°F (17°C) | 3.9 in | |
| October | 52°F (11°C) | 2.6 in | |
| November | 38°F (3°C) | 2.9 in | |
| December | 25°F (-4°C) | 2.2 in |
Waterman has a seasonal temperature swing of 50°F / from 21°F in January to 71°F in July. Total annual precipitation is 36.5 inches, with June being the wettest month (4.3") and February the driest (1.2").