Tiskilwa, IL

Full City Profile · Illinois · Bureau County County

3.8 /5.0
B+ Good
762 Population 1,657/sq mi density
$60,750 Median Income $28,140 per capita
$88,300 Home Value $145,010 Zillow
$739 Median Rent 17.0% income on rent
50°F Avg Temperature
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.1 / 5.0
$60,750 median income, 1.9% unemployment
A+
Affordability
5.0 / 5.0
$88,300 home value, $739/mo rent
C
Education
2.3 / 5.0
15.7% bachelor's degree or higher
Tiskilwa experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 22°F in January while summers reach 74°F in July. Annual precipitation totals 39.8 inches. The area receives 28.5 inches of snow annually.

Temperature

22°F Jan (-5°C) 74°F Jul (23°C)
Annual Average49.7°F
8% below US avg
January Average22°F (-5°C)
July Average74°F (23°C)

Geography

Elevation523 ft (159 m)
Area0.2 sq mi (0.5 km²)
Population Density1,657/sq mi
Coordinates41.2924°N, 89.5066°W
TimezoneAmerica/Chicago
CountyBureau County County
Nearest AirportIllinois Valley Regional-Walter A Duncan Field (VYS)
19 miles away

Precipitation & Snow

Annual Rainfall 39.8"
5% above US avg
Snowfall 28.5"
Wettest Month (May) 5.07"
Driest Month (Jan) 1.96"

Air Quality

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score62.3 / 100
Social Vulnerability41.7 / 100
Community Resilience80.1 / 100

Hazard Breakdown

Tornado Relatively Moderate
Hurricane Very Low
Earthquake Relatively Low
Wildfire Very Low
Flood Relatively Low
Hail Relatively Moderate
Strong Wind Relatively Moderate
Heat Wave Relatively Low
Winter Weather Relatively Low
Lightning Relatively Low
Ice Storm Relatively Moderate
Drought Relatively High
Cold Wave Relatively Moderate
Landslide Relatively Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

7 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.2. Most recent: M2.6 on Mar 15, 2025.

Jun 28, 2004 12 km NW of Dayton, Illinois M4.2 54 km
Feb 10, 2010 2 km NW of Lily Lake, Illinois M3.8 113 km
Sep 2, 1999 8 km W of Amboy, Illinois M3.5 48 km
Jul 15, 2024 2 km WNW of Somonauk, Illinois M3.1 77 km
Mar 25, 2015 3 km WNW of Lake in the Hills, Illinois M2.9 137 km
Jun 10, 2013 4 km NNE of Virgil, Illinois M2.6 114 km
Mar 15, 2025 6 km W of Dwight, Illinois M2.6 87 km
Source: USGS (M2.5+, 1990-2025)

Tornado History

653 tornadoes (EF0+) within 100 km since 1950. Strongest: EF4. Total: 24 fatalities, 593 injuries.

Date Rating Distance Fatalities
Apr 9, 2015 EF4 65 km 2
Nov 17, 2013 EF4 75 km 3
Jul 13, 2004 EF4 57 km 0
Mar 29, 1981 EF4 57 km 0
Jun 29, 1976 EF4 58 km 0
Feb 28, 2017 EF3 44 km 0
Feb 28, 2017 EF3 47 km 2
Jun 22, 2015 EF3 94 km 0
Jun 5, 2010 EF3 68 km 0
Apr 20, 2004 EF3 20 km 8
May 10, 2003 EF3 93 km 0
May 9, 1995 EF3 25 km 0
Mar 13, 1990 EF3 73 km 0
Aug 5, 1979 EF3 81 km 0
Jun 30, 1977 EF3 53 km 0
Mar 4, 1976 EF3 12 km 0
Jul 23, 1975 EF3 98 km 2
Jun 13, 1975 EF3 92 km 0
Jun 20, 1974 EF3 99 km 1
Jun 14, 1974 EF3 98 km 0
Source: NOAA SPC (EF0+, 1950-2024)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 22°F (-5°C) 2.0 in Coldest, Driest
February 26°F (-3°C) 2.0 in
March 38°F (3°C) 2.5 in
April 50°F (10°C) 4.0 in
May 61°F (16°C) 5.1 in Wettest
June 71°F (21°C) 4.6 in
July 74°F (23°C) 3.7 in Warmest
August 72°F (22°C) 4.0 in
September 65°F (18°C) 3.9 in
October 52°F (11°C) 3.1 in
November 39°F (4°C) 2.6 in
December 28°F (-3°C) 2.2 in

Tiskilwa has a seasonal temperature swing of 52°F / from 22°F in January to 74°F in July. Total annual precipitation is 39.8 inches, with May being the wettest month (5.1") and January the driest (2.0").

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