All Countries
Weather & Climate in Apple River, IL
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Apple River experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 18°F in January while summers reach 71°F in July. The area gets 260 sunny days per year, above the national average. Annual precipitation totals 37.6 inches. The area receives 35.7 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 1,000 feet.
Temperature
18°F Jan (-8°C)
71°F Jul (22°C)
| Annual Average | 46.2°F |
| 14% below US avg | |
| January Average | 18°F (-8°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 1,000 ft (305 m) |
| Area | 0.7 sq mi (1.8 km²) |
| Population Density | 430/sq mi |
| Coordinates | 42.5023°N, 90.0937°W |
| Timezone | America/Chicago |
| County | Lafayette County County |
| Nearest Airport | Dubuque Regional (DBQ) 32 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 33.1 / 100 |
| Social Vulnerability | 24.1 / 100 |
| Community Resilience | 58.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
5 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Feb 10, 2010 | 2 km NW of Lily Lake, Illinois | M3.8 | 144 km | 10 km |
| Sep 2, 1999 | 8 km W of Amboy, Illinois | M3.5 | 103 km | 5 km |
| Jul 15, 2024 | 2 km WNW of Somonauk, Illinois | M3.1 | 149 km | 10 km |
| Mar 25, 2015 | 3 km WNW of Lake in the Hills, Illinois | M2.9 | 146 km | 6 km |
| Jun 10, 2013 | 4 km NNE of Virgil, Illinois | M2.6 | 142 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
527 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 19 fatalities, 513 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 7, 1984 | EF5 | 53 km | 36.0 mi | 9 |
| Apr 9, 2015 | EF4 | 98 km | 30.1 mi | 2 |
| Jul 3, 1983 | EF4 | 52 km | 0.5 mi | 0 |
| Mar 29, 1981 | EF4 | 92 km | 5.1 mi | 0 |
| Apr 11, 1965 | EF4 | 100 km | 91.5 mi | 1 |
| Aug 7, 2021 | EF3 | 87 km | 9.4 mi | 0 |
| Jun 16, 2014 | EF3 | 71 km | 1.0 mi | 0 |
| Aug 18, 2005 | EF3 | 71 km | 18.6 mi | 1 |
| Jun 19, 1993 | EF3 | 55 km | 14.0 mi | 0 |
| Jul 13, 1992 | EF3 | 92 km | 5.0 mi | 0 |
| Jun 17, 1992 | EF3 | 62 km | 16.0 mi | 0 |
| May 8, 1988 | EF3 | 14 km | 16.0 mi | 0 |
| Aug 5, 1979 | EF3 | 68 km | 5.7 mi | 0 |
| Jun 20, 1974 | EF3 | 60 km | 10.6 mi | 1 |
| Sep 9, 1970 | EF3 | 47 km | 4.7 mi | 0 |
| Aug 2, 1967 | EF3 | 87 km | 0.1 mi | 2 |
| Apr 16, 1967 | EF3 | 14 km | 27.8 mi | 0 |
| Jan 24, 1967 | EF3 | 51 km | 7.4 mi | 0 |
| Jan 24, 1967 | EF3 | 60 km | 24.9 mi | 0 |
| Sep 3, 1964 | EF3 | 89 km | 17.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
1 wildfire (100+ acres) recorded within 100 km. Largest: COLD SPRINGS (552 acres, 2009).
| Year | Name | Acres Burned | Distance |
| 2009 | COLD SPRINGS | 552 | 43 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 18°F (-8°C) | 1.1 in | Coldest, Driest |
| February | 22°F (-6°C) | 1.2 in | |
| March | 34°F (1°C) | 2.3 in | |
| April | 47°F (8°C) | 3.4 in | |
| May | 59°F (15°C) | 3.6 in | |
| June | 68°F (20°C) | 4.3 in | Wettest |
| July | 71°F (22°C) | 3.9 in | Warmest |
| August | 69°F (21°C) | 4.2 in | |
| September | 61°F (16°C) | 3.9 in | |
| October | 50°F (10°C) | 2.5 in | |
| November | 36°F (2°C) | 2.4 in | |
| December | 23°F (-5°C) | 1.7 in |
Apple River has a seasonal temperature swing of 53°F / from 18°F in January to 71°F in July. Total annual precipitation is 34.4 inches, with June being the wettest month (4.3") and January the driest (1.1").