Weather & Climate in Penfield, IL
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Penfield experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 25°F in January while summers reach 76°F in July. Annual precipitation totals 40.4 inches. The area receives 25.0 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 706 feet.
Temperature
25°F Jan (-4°C)
76°F Jul (24°C)
| Annual Average | 52.3°F |
| 3% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 76°F (24°C) |
Geography
| Elevation | 706 ft (215 m) |
| Area | 0.3 sq mi (0.7 km²) |
| Population Density | 750/sq mi |
| Coordinates | 40.3047°N, 87.9443°W |
| Timezone | America/Chicago |
| County | Vermilion County County |
| Nearest Airport | Vermilion Regional (DNV) 20 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 78.8 / 100 |
| Social Vulnerability | 70.2 / 100 |
| Community Resilience | 87.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
7 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Jun 17, 2021 | Illinois-Indiana border region | M3.8 | 77 km | 6 km |
| Dec 20, 1990 | 5 km S of Stilesville, Indiana | M3.7 | 137 km | 5 km |
| Apr 14, 2000 | 4 km NW of Heritage Lake, Indiana | M3.6 | 118 km | 5 km |
| May 13, 2025 | 7 km SSW of Lerna, Illinois | M3.3 | 110 km | 10 km |
| Dec 17, 1990 | Illinois-Indiana border region | M3.2 | 81 km | 10 km |
| Dec 16, 1996 | 3 km NNE of Terre Haute, Indiana | M3.1 | 101 km | 5 km |
| Mar 15, 2025 | 6 km W of Dwight, Illinois | M2.6 | 99 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
684 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 63 fatalities, 949 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 26, 1994 | EF4 | 86 km | 14.0 mi | 3 |
| Mar 20, 1976 | EF4 | 92 km | 63.7 mi | 0 |
| Mar 20, 1976 | EF4 | 82 km | 16.7 mi | 0 |
| Apr 3, 1974 | EF4 | 72 km | 108.7 mi | 18 |
| Apr 11, 1965 | EF4 | 95 km | 21.8 mi | 0 |
| Apr 11, 1965 | EF4 | 97 km | 45.7 mi | 28 |
| Apr 17, 1963 | EF4 | 98 km | 57.3 mi | 1 |
| Nov 17, 2013 | EF3 | 20 km | 29.8 mi | 0 |
| Nov 17, 2013 | EF3 | 61 km | 18.7 mi | 0 |
| Nov 17, 2013 | EF3 | 94 km | 37.9 mi | 0 |
| Jun 5, 2010 | EF3 | 86 km | 7.8 mi | 0 |
| Apr 19, 1996 | EF3 | 21 km | 2.0 mi | 1 |
| Apr 19, 1996 | EF3 | 37 km | 4.0 mi | 0 |
| Apr 2, 1982 | EF3 | 83 km | 12.0 mi | 0 |
| Jun 2, 1980 | EF3 | 78 km | 18.1 mi | 1 |
| Jun 25, 1978 | EF3 | 84 km | 27.4 mi | 0 |
| Mar 12, 1976 | EF3 | 80 km | 38.5 mi | 1 |
| Aug 10, 1974 | EF3 | 86 km | 0.1 mi | 0 |
| Apr 3, 1974 | EF3 | 41 km | 14.9 mi | 0 |
| Apr 3, 1974 | EF3 | 62 km | 7.4 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
1 wildfire (100+ acres) recorded within 100 km. Largest: UNNAMED (1,602 acres, 2000).
| Year | Name | Acres Burned | Distance |
| 2000 | UNNAMED | 1,602 | 82 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 2.5 in | Coldest |
| February | 30°F (-1°C) | 2.0 in | Driest |
| March | 40°F (5°C) | 2.6 in | |
| April | 52°F (11°C) | 4.0 in | |
| May | 63°F (17°C) | 4.3 in | |
| June | 73°F (23°C) | 4.6 in | Wettest |
| July | 76°F (24°C) | 4.4 in | Warmest |
| August | 74°F (23°C) | 3.9 in | |
| September | 68°F (20°C) | 3.3 in | |
| October | 55°F (13°C) | 3.3 in | |
| November | 42°F (5°C) | 3.2 in | |
| December | 31°F (-1°C) | 2.2 in |
Penfield has a seasonal temperature swing of 51°F / from 25°F in January to 76°F in July. Total annual precipitation is 40.4 inches, with June being the wettest month (4.6") and February the driest (2.0").