Hot-summer humid continental
Chatham, Illinois
Sangamon County, Illinois · Population 15k · 607 ft elevation
Living in Chatham
Chatham has a hot-summer humid continental climate: hot summers (July highs around 86°F) and cold winters (January lows around 19°F).
Precipitation is wet at about 40″ a year, and it gets light snow (22″ a season).
Skies are sunny (62% of possible sunshine). Summers get sticky, with about 53 muggy days a year.
Air quality is moderate: a median AQI of 41, with about 3 unhealthy-air days in the latest year.
Chatham at a glance
- Population
- 15k
- Elevation
- 607 ft
- Average daily high
- 63°F35th percentile
- Average daily low
- 43°F36th percentile
- Annual precipitation
- 40″38th percentile
- Annual snowfall
- 22″61th percentile
- Sunshine hours per year
- 2,792 hrs48th percentile
- Median AQI
- 4144th percentile
- Median home value
- $232k43th percentile
- Median rent
- $1,157/mo47th percentile
- Median household income
- $106k77th percentile
- Property tax rate
- 2.08%91th percentile
- Top state income-tax rate
- 5.0%
- Sales tax (state + local)
- 8.9%
- Unemployment rate
- 3.5%
- Homes with broadband
- 91%49th percentile
- Walkability index
- 10.167th percentile
- Average commute
- 23 min
- Math proficiency (8th grade)
- 40%40th percentile
- Reading proficiency (8th grade)
- 47%
- Violent crime rate
- 191 per 100k54th percentile
- Property crime rate
- 524 per 100k
- Overall natural-hazard risk
- 9254th percentile
- Outdoor access
- 00th percentile
- Public land within 10 miles
- 0%
- Public land within 30 miles
- 0%
- Mountain relief within 30 miles
- 98 ft
Climate by month
| Month | High | Low | Precipitation | Snow | Sunshine |
|---|---|---|---|---|---|
| Jan | 36°F | 19°F | 2.2″ | 6.7″ | 146 hrs |
| Feb | 41°F | 22°F | 2.2″ | 6.1″ | 153 hrs |
| Mar | 52°F | 31°F | 3.0″ | 3.1″ | 195 hrs |
| Apr | 65°F | 41°F | 4.1″ | 0.3″ | 239 hrs |
| May | 74°F | 53°F | 5.1″ | — | 273 hrs |
| Jun | 83°F | 63°F | 5.0″ | — | 324 hrs |
| Jul | 86°F | 66°F | 4.4″ | — | 345 hrs |
| Aug | 84°F | 64°F | 2.9″ | — | 317 hrs |
| Sep | 78°F | 56°F | 3.1″ | — | 274 hrs |
| Oct | 66°F | 44°F | 3.1″ | 0.1″ | 217 hrs |
| Nov | 53°F | 33°F | 3.1″ | 1.2″ | 172 hrs |
| Dec | 41°F | 24°F | 2.3″ | 4.3″ | 136 hrs |
Near Chatham
- Auburn, IL · 4.4k
- Pawnee, IL · 2.7k
- Springfield, IL · 114k
- Rochester, IL · 3.8k
- Virden, IL · 3.2k
- Riverton, IL · 3.5k
- Sherman, IL · 4.2k
- Taylorville, IL · 11k
Largest places in Illinois
- Chicago, IL · 2.7M
- Aurora, IL · 180k
- Joliet, IL · 150k
- Naperville, IL · 149k
- Rockford, IL · 148k
- Elgin, IL · 114k
- Peoria, IL · 112k
- Waukegan, IL · 89k
Sources: NOAA climate normals, NASA POWER, EPA air quality, U.S. Census Bureau, FEMA, FBI, EPA walkability and EDFacts. Methodology