Topeka, IL
Full City Profile · Illinois · Mason County County
4.1
/5.0
A
Great
28
Population
200/sq mi density
$76,563
Median Income
$33,579 per capita
$50,000
Home Value
$88,695 Zillow
53°F
Avg Temperature
A
Overall
4.1 / 5.0
Strong
A
Economy
4.1 / 5.0
$76,563 median income, unemployment
A+
Affordability
5.0 / 5.0
$50,000 home value, /mo rent
B
Education
3.2 / 5.0
0.0% bachelor's degree or higher
Topeka experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 25°F in January while summers reach 77°F in July. Annual precipitation totals 41.0 inches. The area receives 27.9 inches of snow annually.
Temperature
25°F Jan (-4°C)
77°F Jul (25°C)
| Annual Average | 52.5°F |
| 3% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 77°F (25°C) |
Geography
| Elevation | 472 ft (144 m) |
| Area | 0.1 sq mi (0.1 km²) |
| Population Density | 200/sq mi |
| Coordinates | 40.3304°N, 89.9306°W |
| Timezone | America/Chicago |
| County | Mason County County |
| Nearest Airport | General Downing - Peoria International (PIA) 26 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 43.0 / 100 |
| Social Vulnerability | 52.9 / 100 |
| Community Resilience | 68.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 2.2 in | Coldest |
| February | 30°F (-1°C) | 2.2 in | Driest |
| March | 41°F (5°C) | 2.7 in | |
| April | 52°F (11°C) | 4.2 in | |
| May | 64°F (18°C) | 5.1 in | Wettest |
| June | 73°F (23°C) | 4.7 in | |
| July | 77°F (25°C) | 4.2 in | Warmest |
| August | 74°F (24°C) | 4.0 in | |
| September | 67°F (19°C) | 3.3 in | |
| October | 55°F (13°C) | 3.4 in | |
| November | 42°F (6°C) | 2.7 in | |
| December | 31°F (-1°C) | 2.4 in |
Topeka has a seasonal temperature swing of 52°F / from 25°F in January to 77°F in July. Total annual precipitation is 41.0 inches, with May being the wettest month (5.1") and February the driest (2.2").