Waterman, IL
Full City Profile · Illinois · DeKalb County County
4.3
/5.0
A
Great
1,419
Population
934/sq mi density
$97,386
Median Income
$40,005 per capita
$212,900
Home Value
$299,664 Zillow
$897
Median Rent
27.2% income on rent
48°F
Avg Temperature
A
Overall
4.3 / 5.0
Strong
A+
Economy
4.8 / 5.0
$97,386 median income, 3.3% unemployment
A+
Affordability
5.0 / 5.0
$212,900 home value, $897/mo rent
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. Annual precipitation totals 37.4 inches. The area receives 29.8 inches of snow annually.
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) |
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
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) | 1.7 in | Coldest, Driest |
| February | 25°F (-4°C) | 1.9 in | |
| March | 36°F (2°C) | 2.5 in | |
| April | 48°F (9°C) | 3.6 in | |
| May | 59°F (15°C) | 4.6 in | Wettest |
| June | 69°F (20°C) | 4.5 in | |
| July | 71°F (22°C) | 3.8 in | Warmest |
| August | 69°F (20°C) | 4.1 in | |
| September | 62°F (17°C) | 3.4 in | |
| October | 50°F (10°C) | 3.0 in | |
| November | 37°F (3°C) | 2.3 in | |
| December | 26°F (-3°C) | 2.1 in |
Waterman has a seasonal temperature swing of 50°F / from 21°F in January to 71°F in July. Total annual precipitation is 37.4 inches, with May being the wettest month (4.6") and January the driest (1.7").