llinois agriculture closed out 2025 under historic drought pressure, despite a year marked by violent weather swings, including record-breaking rains, extreme heat fluctuations, and a tornado surge. According to State Climatologist Trent Ford, 2025 will likely be remembered as one of the top 20 driest years in Illinois history.

The U.S. Drought Monitor released January 15 shows nearly the entire state as abnormally dry or officially in drought. The final statewide average for annual precipitation in 2025 landed at 31.78 inches-9 inches below normal.

"We were drier than 1988 and 2012 in central areas, but timely rains saved many crops from disaster," Ford told FarmWeek.

Wild Weather by Region

Rainfall in 2025 was anything but consistent. Southern Illinois experienced some of its wettest early-year conditions on record, particularly near the Ohio River. Towns like Metropolis logged 67 inches of rain-23 inches above average. In contrast, central and northern Illinois suffered extended dryness. Some locations in Champaign and Piatt Counties ended the year with just 22 inches.

Peoria, Springfield, Quincy, and Champaign-Urbana all recorded top 10 driest years, with Champaign-Urbana logging its second driest year since 1894.

Snowfall finally returned after years of below-average accumulation. Parts of central Illinois, including Decatur, received 16 to 18 inches above average snowfall late in the year.

Tornadoes and Thunderstorms

Severe weather was rampant in early 2025. Illinois recorded 126 tornadoes, the second-highest total ever, behind only 2024. Most occurred between March and June, when Illinois outpaced even the first half of its record-setting 2024 tornado season.

But once late summer's drought intensified, tornadoes declined dramatically. "Dry air suppresses storm formation, so we avoided a second consecutive record," Ford noted.

Heat Swings, Modest Averages

Despite short-term extremes-like Christmas week temperatures topping 60°F followed by a 60° drop in 24 hours-2025 ended only 1°F above normal. The most intense warmth occurred in March and October, aiding planting and harvest windows.

It was the 15th warmest year on record in Chicago, and the 20th in Peoria. Northern Illinois ran slightly warmer than the southern half.

Agricultural Impact

In central Illinois, every month but July was drier than normal, creating stress on crops during key growth stages. Still, timely July rains buffered against major yield losses.

Late-season dryness was most intense: August to September ranked as the third driest two-month stretch on record, with less than 50% of normal rainfall. Yet farmers capitalized on dry October conditions to accelerate harvest.

As climate volatility increases, Illinois farmers face growing uncertainty. While no single event defined 2025, the year collectively underscored the need for adaptive practices, drought planning, and precision tools to respond to rapidly shifting weather conditions.