Evansville Weather: What to Expect Year-Round

Current Conditions Overview

Evansville, Indiana, experiences a humid subtropical climate with four distinct seasons. Daily high temperatures average 85°F in summer and 43°F in winter, while overnight lows range from 67°F to 25°F. Humidity stays elevated year-round, peaking above 70% in July, and prevailing southwest winds average 8–12 mph. Annual precipitation totals about 46 inches, with the highest monthly averages in spring. The UV index climbs to “very high” from May through August, and ozone-action days are most frequent during the same period when heat and humidity trap pollutants.

Seasonal Weather Breakdown

Spring (March–May)

Rapid temperature swings of 20°F in a single day are common, and rainfall averages 4–5 inches monthly. Severe-weather risks rise sharply; the National Weather Service designates late March through early June as peak tornado season for the tri-state area.

Summer (June–August)

Daytime highs often exceed 90°F, and humidity pushes heat-index values above 100°F several times each July. Pop-up thunderstorms occur on roughly one-third of summer afternoons, occasionally triggering heat advisories from the local National Weather Service office.

Fall (September–November)

Temperatures cool from the low 80s to the low 50s, and colorful foliage enhances outdoor festivals along the Ohio River. Monthly rainfall drops to about 3 inches, making fall the driest season.

Winter (December–February)

Average seasonal snowfall totals 10–15 inches, although ice storms can add hazardous glaze. Wind-chill factors occasionally dip below zero, prompting the Evansville Vanderburgh School Corporation to announce delays or closures via its website and local TV scrolls.

Extreme Weather & Safety

The Ohio River corridor is prone to flooding; minor flood stage is reached several times a year, and major flooding occurs roughly once every 3–5 years. Residents monitor National Weather Service alerts and the city’s outdoor siren system. Emergency-preparedness guides are available on Evansville.gov.

Where to Get Real-Time Updates

For the latest forecasts, visit the Courier & Press weather page, tune into local TV or NOAA Weather Radio, or follow the City of Evansville’s social channels and trusted mobile apps.

FAQ

What is the average annual snowfall in Evansville?
Evansville typically receives 10–15 inches of snow each winter, with occasional ice storms.

When is peak tornado season in the Evansville area?
The highest risk occurs from late March through early June, coinciding with peak thunderstorm activity.

How often does the Ohio River flood downtown Evansville?
Minor flooding is possible several times a year; major flood stage is reached roughly once every 3–5 years.

What should I pack for a summer visit?
Lightweight, breathable clothing, a compact umbrella, and sunscreen are essential due to high humidity and frequent storms.

Are there air-quality alerts during certain months?
Ozone action days are most common from May through September when heat and humidity trap pollutants.

Where can I find school-closure information during winter weather?
Check the Evansville Vanderburgh School Corporation website or local TV scrolls for delay and cancellation notices.