Hot-summer humid continental
Waterloo, Illinois
Monroe County, Illinois · Population 11k · 709 ft elevation
Living in Waterloo
Waterloo has a hot-summer humid continental climate: hot summers (July highs around 88°F) and cold winters (January lows around 22°F).
Precipitation is wet at about 44″ a year, and it sees only a dusting of snow (9″ a season).
Skies are sunny (63% of possible sunshine). Summers get sticky, with about 59 muggy days a year.
Air quality is moderate: a median AQI of 47, with about 3 unhealthy-air days in the latest year.
Waterloo at a glance
- Population
- 11k
- Elevation
- 709 ft
- Average daily high
- 66°F50th percentile
- Average daily low
- 45°F47th percentile
- Annual precipitation
- 44″52th percentile
- Annual snowfall
- 9″44th percentile
- Sunshine hours per year
- 2,823 hrs52th percentile
- Median AQI
- 4776th percentile
- Median home value
- $238k44th percentile
- Median rent
- $873/mo21th percentile
- Median household income
- $92k68th percentile
- Property tax rate
- 1.75%83th percentile
- Top state income-tax rate
- 5.0%
- Sales tax (state + local)
- 8.9%
- Unemployment rate
- 3.4%
- Homes with broadband
- 93%62th percentile
- Walkability index
- 8.651th percentile
- Average commute
- 27 min
- Math proficiency (8th grade)
- 47%52th percentile
- Reading proficiency (8th grade)
- 52%
- Overall natural-hazard risk
- 428th percentile
- Outdoor access
- 1616th percentile
- Public land within 10 miles
- 0%
- Public land within 30 miles
- 2%
- Mountain relief within 30 miles
- 394 ft
Climate by month
| Month | High | Low | Precipitation | Snow | Sunshine |
|---|---|---|---|---|---|
| Jan | 41°F | 22°F | 2.7″ | 2.1″ | 156 hrs |
| Feb | 46°F | 25°F | 2.5″ | 2.7″ | 155 hrs |
| Mar | 56°F | 33°F | 4.0″ | 1.1″ | 195 hrs |
| Apr | 67°F | 43°F | 4.9″ | 0.2″ | 242 hrs |
| May | 76°F | 53°F | 4.8″ | — | 274 hrs |
| Jun | 84°F | 62°F | 4.7″ | — | 326 hrs |
| Jul | 88°F | 67°F | 3.8″ | — | 339 hrs |
| Aug | 87°F | 65°F | 3.6″ | — | 317 hrs |
| Sep | 80°F | 57°F | 3.4″ | — | 272 hrs |
| Oct | 69°F | 45°F | 2.8″ | — | 224 hrs |
| Nov | 56°F | 35°F | 3.5″ | 0.6″ | 180 hrs |
| Dec | 45°F | 26°F | 2.8″ | 2.5″ | 143 hrs |
Near Waterloo
- Columbia, IL · 11k
- Millstadt, IL · 4k
- Smithton, IL · 3.5k
- Red Bud, IL · 3.8k
- Dupo, IL · 3.9k
- Freeburg, IL · 4.3k
- Belleville, IL · 42k
- Cahokia Heights, IL · 17k
Largest places in Illinois
- Chicago, IL · 2.7M
- Aurora, IL · 180k
- Joliet, IL · 150k
- Naperville, IL · 149k
- Rockford, IL · 148k
- Elgin, IL · 114k
- Springfield, IL · 114k
- Peoria, IL · 112k
Sources: NOAA climate normals, NASA POWER, EPA air quality, U.S. Census Bureau, FEMA, FBI, EPA walkability and EDFacts. Methodology