Frost Dates for 54738 — Eleva, Wisconsin

Half of springs at Mondovi, WI see their last 32°F night by May 10; only one in ten is past it by April 27, and one in ten still has one after May 25. Planting tender crops after May 16 leaves a 30% risk of a frost on them, after May 19 20%, and after May 25 10%. The 15 days between the even-odds date and the one-in-ten date is narrower than at 30% of the 182 Wisconsin stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 2 in half of years, as early as September 19 one year in ten, and holds off past October 13 one year in ten. A hard freeze of 28°F follows 7 days later, around October 9; in spring the one-in-ten date for 28°F is May 14, 11 days before the 32°F one. The freeze-free season lasts 144 days in a typical year, shorter than at 76% of the 182 Wisconsin stations; it reaches 163 days one year in ten and falls short of 125 one year in ten. On average 163 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 10 days longer, to about May 20, and return around September 23. Severe cold of 16°F or below comes every winter, usually between November 11 and March 31.

July is the warmest month at Mondovi, WI, averaging 85°F by day and 60°F at night; January is the coldest at 27°F and 7°F. A freezing night is all but certain in every month from October to April (a 90% chance or more). From June to August the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 81% of years.

Warmth for growing adds up to 2,793 growing degree days a year (base 50°F), more than at 90% of the 182 Wisconsin stations. 34% of them (963) have built up by the end of June, and July adds the most, 697. Precipitation totals 36.1 inches a year, most in June (5.3") and least in January (1.1"); May to September bring 62% of it.

The nearest other station, Eau Claire 3SW, WI, 14 miles north of Eleva, has a last frost 16 days earlier (April 24), a first frost 12 days later (October 14), a season 26 days longer.

The first measurable snow (0.1 inch or more) in Eleva usually arrives around November 9, and the last of the season around April 12. Those are the middle dates across the winters of 1991–2020 at Mondovi, WI, 9.1 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 28 days after the last snow.

ZIP 54738 is 9 miles from Mondovi, WI, which stands at 830 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station; its figures are presented in full for 54755 (Mondovi). The 2023 USDA Plant Hardiness Zone Map lists ZIP 54738 in zone 4b, the band where the coldest night of the year averaged -25 to -20°F (-31.7 to -28.9°C) over 1991–2020; a zone describes winter lows, not frost dates.