Frost Dates for 47710 — Evansville, Indiana

Half of springs at Evansville Museum, IN see their last 32°F night by March 29; only one in ten is past it by March 14, and one in ten still has one after April 11. Planting tender crops after April 2 leaves a 30% risk of a frost on them, after April 5 20%, and after April 11 10%. The 13 days between the even-odds date and the one-in-ten date is narrower than at 98% of the 125 Indiana stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 10 in half of years, as early as October 27 one year in ten, and holds off past November 25 one year in ten. A hard freeze of 28°F follows 10 days later, around November 20; in spring the one-in-ten date for 28°F is March 31, 11 days before the 32°F one. The freeze-free season lasts 225 days in a typical year, the longest of the 125 Indiana stations; it reaches 245 days one year in ten and falls short of 204 one year in ten. On average 69 nights a year drop to 32°F or below. Nights of 36°F, when frost can still settle on leaves in low, open spots, continue 9 days longer, to about April 7, and return around October 30. Severe cold of 16°F or below comes in 99% of winters, usually between December 28 and February 13.

July is the warmest month at Evansville Museum, IN, averaging 89°F by day and 71°F at night; January is the coldest at 42°F and 27°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 37% of years.

Warmth for growing adds up to 4,812 growing degree days a year (base 50°F), the most of the 125 Indiana stations. 37% of them (1,799) have built up by the end of June, and July adds the most, 930. Precipitation totals 47.9 inches a year, most in April (5.2") and least in August (3.1"); May to September bring 42% of it.

The nearest other station, Evansville Regional Airport, IN, 4 miles northeast of Evansville, has a last frost 6 days later (April 4), a first frost 12 days earlier (October 29), a season 19 days shorter.

The first measurable snow (0.1 inch or more) in Evansville usually arrives around December 23, and the last of the season around February 22. Those are the middle dates across the winters of 1991–2020 at Evansville Museum, IN, 2.4 miles away: half of years saw snow earlier, half later. Every one of those winters saw snow. The last 32°F night of spring typically comes 35 days after the last snow.

ZIP 47710 is 2 miles from Evansville Museum, IN, which stands at 374 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 4 other ZIP codes share the station; its figures are presented in full for 47714 (Evansville). The 2023 USDA Plant Hardiness Zone Map lists ZIP 47710 in zone 7a, the band where the coldest night of the year averaged 0 to 5°F (-17.8 to -15.0°C) over 1991–2020; a zone describes winter lows, not frost dates.