Frost Dates for 54829 — Cumberland, Wisconsin

Half of springs at Cumberland, WI see their last 32°F night by May 5; only one in ten is past it by April 22, and one in ten still has one after May 18. Planting tender crops after May 9 leaves a 30% risk of a frost on them, after May 12 20%, and after May 18 10%. The 13 days between the even-odds date and the one-in-ten date is narrower than at 84% of the 182 Wisconsin stations behind this site's ZIP pages.

In fall the first 32°F night comes by October 4 in half of years, as early as September 23 one year in ten, and holds off past October 19 one year in ten. A hard freeze of 28°F follows 12 days later, around October 16; in spring the one-in-ten date for 28°F is May 8, 10 days before the 32°F one. The freeze-free season lasts 152 days in a typical year, shorter than at 59% of the 182 Wisconsin stations; it reaches 169 days one year in ten and falls short of 134 one year in ten. On average 169 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 May 14, and return around September 27. Severe cold of 16°F or below comes every winter, usually between November 12 and April 2.

July is the warmest month at Cumberland, WI, averaging 79°F by day and 59°F at night; January is the coldest at 19°F and 0°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 68% of years.

Warmth for growing adds up to 2,114 growing degree days a year (base 50°F), fewer than at 81% of the 182 Wisconsin stations. 32% of them (666) have built up by the end of June, and July adds the most, 595. Precipitation totals 33.8 inches a year, most in June (4.5") and least in January (1.0"); May to September bring 62% of it.

The nearest other station, Rice Lake, WI, 16 miles southeast of Cumberland, has a last frost 3 days later (May 8), a first frost 2 days earlier (October 2), a season 7 days shorter.

The first measurable snow (0.1 inch or more) in Cumberland usually arrives around November 8, and the last of the season around April 11. Those are the middle dates across the winters of 1991–2020 at Cumberland, WI, 1.9 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 24 days after the last snow.

ZIP 54829 is 2 miles from Cumberland, WI, which stands at 1,240 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 54829 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.