Frost Dates for 53923 — Cambria, Wisconsin

Half of springs at Dalton, WI see their last 32°F night by May 6; only one in ten is past it by April 22, and one in ten still has one after May 22. Planting tender crops after May 13 leaves a 30% risk of a frost on them, after May 17 20%, and after May 22 10%. The 16 days between the even-odds date and the one-in-ten date is wider than at 70% 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 20 one year in ten, and holds off past October 16 one year in ten. A hard freeze of 28°F follows 12 days later, around October 14; in spring the one-in-ten date for 28°F is May 11, 11 days before the 32°F one. The freeze-free season lasts 150 days in a typical year, shorter than at 64% of the 182 Wisconsin stations; it reaches 169 days one year in ten and falls short of 129 one year in ten. On average 157 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 17, and return around September 25. Severe cold of 16°F or below comes every winter, usually between November 14 and March 28.

July is the warmest month at Dalton, WI, averaging 84°F by day and 60°F at night; January is the coldest at 28°F and 9°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 67% of years.

Warmth for growing adds up to 2,686 growing degree days a year (base 50°F), more than at 80% of the 182 Wisconsin stations. 33% of them (896) have built up by the end of June, and July adds the most, 677. Precipitation totals 36.3 inches a year, most in June (5.2") and least in February (1.3"); May to September bring 58% of it.

The nearest other station, Markesan, WI, 12 miles northeast of Cambria, has a last frost 2 days later (May 8), the same first-frost date, a season 6 days shorter.

The first measurable snow (0.1 inch or more) in Cambria usually arrives around November 14, and the last of the season around April 12. Those are the middle dates across the winters of 1991–2020 at Dalton, WI, 7.4 miles away: half of years saw snow earlier, half later. Snow fell in 94% of those winters. The last 32°F night of spring typically comes 24 days after the last snow.

ZIP 53923 is 7 miles from Dalton, WI, which stands at 860 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 53923 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.