Frost Dates for 53555 — Lodi, Wisconsin

Half of springs at Lodi, WI see their last 32°F night by May 1; only one in ten is past it by April 17, and one in ten still has one after May 15. Planting tender crops after May 6 leaves a 30% risk of a frost on them, after May 10 20%, and after May 15 10%. The 14 days between the even-odds date and the one-in-ten date is narrower than at 58% of the 182 Wisconsin stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 10 in half of years, as early as September 27 one year in ten, and holds off past October 25 one year in ten. A hard freeze of 28°F follows 12 days later, around October 22; in spring the one-in-ten date for 28°F is May 4, 11 days before the 32°F one. The freeze-free season lasts 162 days in a typical year, longer than at 65% of the 182 Wisconsin stations; it reaches 182 days one year in ten and falls short of 142 one year in ten. On average 154 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 11 days longer, to about May 12, and return around September 30. Severe cold of 16°F or below comes every winter, usually between November 22 and March 20.

July is the warmest month at Lodi, WI, averaging 84°F by day and 61°F at night; January is the coldest at 27°F and 10°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 51% of years.

Warmth for growing adds up to 2,749 growing degree days a year (base 50°F), more than at 87% of the 182 Wisconsin stations. 34% of them (937) have built up by the end of June, and July adds the most, 691. Precipitation totals 39.3 inches a year, most in June (5.4") and least in January (1.5"); May to September bring 59% of it.

The nearest other station, Sauk City Wwtp, WI, 10 miles southwest of Lodi, has a last frost 3 days later (May 4), a first frost 4 days earlier (October 6), a season 7 days shorter.

The first measurable snow (0.1 inch or more) in Lodi usually arrives around November 22, and the last of the season around March 20. Those are the middle dates across the winters of 1991–2020 at Lodi, WI, 1.5 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 42 days after the last snow.

ZIP 53555 is 2 miles from Lodi, WI, which stands at 824 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 53555 in zone 5a, the band where the coldest night of the year averaged -20 to -15°F (-28.9 to -26.1°C) over 1991–2020; a zone describes winter lows, not frost dates.