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Weather & Climate in Lake in the Hills, IL
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Lake in the Hills experiences four distinct seasons with an average annual temperature of 49°F (10°C). Winters average 23°F in January while summers reach 73°F in July. The area gets 260 sunny days per year, above the national average. Annual precipitation totals 39.4 inches. The area receives 35.1 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 796 feet.
Temperature
23°F Jan (-5°C)
73°F Jul (23°C)
| Annual Average | 49.2°F |
| 9% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 796 ft (243 m) |
| Area | 10.5 sq mi (27.3 km²) |
| Population Density | 2,826/sq mi |
| Coordinates | 42.1794°N, 88.3155°W |
| Timezone | America/Chicago |
| County | McHenry County County |
| Nearest Airport | Chicago O'Hare International (ORD) 25 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 90.8 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 84.0 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
8 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.2.
| Jun 28, 2004 | 12 km NW of Dayton, Illinois | M4.2 | 94 km | 10 km |
| Feb 10, 2010 | 2 km NW of Lily Lake, Illinois | M3.8 | 28 km | 10 km |
| Sep 2, 1999 | 8 km W of Amboy, Illinois | M3.5 | 106 km | 5 km |
| Nov 4, 2013 | 1 km SSW of Lyons, Illinois | M3.2 | 59 km | 1 km |
| Jul 15, 2024 | 2 km WNW of Somonauk, Illinois | M3.1 | 68 km | 10 km |
| Mar 25, 2015 | 3 km WNW of Lake in the Hills, Illinois | M2.9 | 4 km | 6 km |
| Jun 10, 2013 | 4 km NNE of Virgil, Illinois | M2.6 | 26 km | 5 km |
| Mar 15, 2025 | 6 km W of Dwight, Illinois | M2.6 | 123 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
569 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 108 fatalities, 2,293 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Aug 28, 1990 | EF5 | 56 km | 16.4 mi | 29 |
| Apr 9, 2015 | EF4 | 88 km | 30.1 mi | 2 |
| Apr 27, 1984 | EF4 | 89 km | 6.5 mi | 1 |
| Jun 29, 1979 | EF4 | 74 km | 5.4 mi | 0 |
| Jun 13, 1976 | EF4 | 62 km | 3.3 mi | 2 |
| Sep 28, 1972 | EF4 | 38 km | 5.2 mi | 0 |
| Apr 21, 1967 | EF4 | 5 km | 8.8 mi | 1 |
| Apr 21, 1967 | EF4 | 50 km | 25.5 mi | 24 |
| Apr 21, 1967 | EF4 | 69 km | 15.0 mi | 33 |
| Apr 11, 1965 | EF4 | 7 km | 9.1 mi | 6 |
| Jun 20, 2021 | EF3 | 49 km | 17.6 mi | 0 |
| Jun 22, 2015 | EF3 | 97 km | 16.3 mi | 0 |
| Jan 7, 2008 | EF3 | 48 km | 13.2 mi | 0 |
| Jan 7, 2008 | EF3 | 41 km | 10.8 mi | 0 |
| Mar 27, 1991 | EF3 | 69 km | 15.0 mi | 0 |
| Apr 27, 1984 | EF3 | 70 km | 9.0 mi | 1 |
| Jun 30, 1977 | EF3 | 88 km | 6.1 mi | 0 |
| Mar 12, 1976 | EF3 | 61 km | 22.6 mi | 0 |
| Jan 24, 1967 | EF3 | 98 km | 24.9 mi | 0 |
| Nov 12, 1965 | EF3 | 98 km | 4.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1954 | MICHIGAN CITY, IN (LAKE MICHIGAN) | Avalanche | 3.0 m | 7 | 130 km |
Source: NOAA/NCEI Historical Tsunami Database.
Wildfire History
10 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (1,741 acres, 2019).
| Year | Name | Acres Burned | Distance |
| 2019 | UNNAMED | 1,741 | 90 km |
| 2019 | UNNAMED | 1,664 | 92 km |
| 2021 | NORTHEAST PRAIRIE UNIT 3 | 978 | 93 km |
| 2024 | NORTHEAST PRAIRIE 3 RX | 938 | 92 km |
| 2021 | UNNAMED | 738 | 91 km |
| 2021 | MIDDLE GRANT CREEK | 700 | 91 km |
| 2019 | UNNAMED | 698 | 91 km |
| 2024 | IBSP SOUTH F1 RX | 690 | 49 km |
| 2024 | RX-HWY Y - SOUTH | 553 | 94 km |
| 2017 | UNNAMED | 549 | 91 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 1.5 in | Coldest |
| February | 25°F (-4°C) | 1.2 in | Driest |
| March | 36°F (2°C) | 2.5 in | |
| April | 47°F (8°C) | 3.6 in | |
| May | 58°F (15°C) | 3.5 in | |
| June | 68°F (20°C) | 4.1 in | |
| July | 73°F (23°C) | 4.1 in | Warmest |
| August | 71°F (21°C) | 4.1 in | Wettest |
| September | 63°F (17°C) | 3.9 in | |
| October | 51°F (11°C) | 2.4 in | |
| November | 38°F (3°C) | 2.8 in | |
| December | 26°F (-4°C) | 2.1 in |
Lake in the Hills has a seasonal temperature swing of 50°F / from 23°F in January to 73°F in July. Total annual precipitation is 35.7 inches, with August being the wettest month (4.1") and February the driest (1.2").