USDA Hardiness Zone 4b
Frost Dates for 54114 — Crivitz, Wisconsin
NOAA 1991–2020 normals from Crivitz High Falls, WI (950 ft), 8 miles north.
Updated
In Crivitz, the last spring frost (32°F) is around May 26 in half of years and has passed by June 11 in nine years out of ten. The first fall frost comes around September 22, as early as September 6 one year in ten, leaving a typical freeze-free season of 118 days (NOAA, Crivitz High Falls, WI).
- Last spring frost
- May 26
- First fall frost
- September 22
- Growing season
- 118 days
- Hardiness zone
- 4b
50% probability
50% probability
freeze-free, 50%
-25 to -20°F (-31.7 to -28.9°C) coldest night
- First snow
- November 11
- Last snow
- April 13
- Winters with snow
- 100%
- Snow per year
- 58.3"
median, 1991–2020
median, 1991–2020
28 of 28 observed
NOAA normal
Frost risk by date in Crivitz
Half of springs at Crivitz High Falls, WI see their last 32°F night by May 26; only one in ten is past it by May 11, and one in ten still has one after June 11. Planting tender crops after June 1 leaves a 30% risk of a frost on them, after June 4 20%, and after June 11 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 September 22 in half of years, as early as September 6 one year in ten, and holds off past October 5 one year in ten. A hard freeze of 28°F follows 11 days later, around October 3; in spring the one-in-ten date for 28°F is May 28, 14 days before the 32°F one. The freeze-free season lasts 118 days in a typical year, shorter than at 99% of the 182 Wisconsin stations; it reaches 138 days one year in ten and falls short of 97 one year in ten. On average 194 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 13 days longer, to about June 8, and return around September 11. Severe cold of 16°F or below comes every winter, usually between November 10 and April 12.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 24 | May 29 | Jun 1 | Jun 5 | Jun 8 | Jun 12 | Jun 16 | Jun 23 | Jun 30 |
| 32°F | May 11 | May 17 | May 21 | May 24 | May 26 | May 30 | Jun 1 | Jun 4 | Jun 11 |
| 28°F | Apr 30 | May 4 | May 8 | May 11 | May 14 | May 18 | May 21 | May 24 | May 28 |
| 24°F | Apr 20 | Apr 25 | Apr 28 | Apr 30 | May 2 | May 5 | May 8 | May 12 | May 17 |
| 20°F | Apr 10 | Apr 14 | Apr 17 | Apr 21 | Apr 24 | Apr 26 | Apr 29 | May 1 | May 6 |
| 16°F | Mar 29 | Apr 3 | Apr 6 | Apr 8 | Apr 12 | Apr 14 | Apr 18 | Apr 22 | Apr 26 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Aug 26 | Sep 1 | Sep 4 | Sep 8 | Sep 11 | Sep 13 | Sep 16 | Sep 19 | Sep 24 |
| 32°F | Sep 6 | Sep 13 | Sep 17 | Sep 20 | Sep 22 | Sep 25 | Sep 28 | Oct 1 | Oct 5 |
| 28°F | Sep 19 | Sep 24 | Sep 28 | Oct 1 | Oct 3 | Oct 5 | Oct 8 | Oct 12 | Oct 16 |
| 24°F | Oct 1 | Oct 5 | Oct 9 | Oct 12 | Oct 14 | Oct 17 | Oct 20 | Oct 23 | Oct 29 |
| 20°F | Oct 14 | Oct 19 | Oct 23 | Oct 26 | Oct 30 | Nov 1 | Nov 3 | Nov 7 | Nov 13 |
| 16°F | Oct 28 | Nov 1 | Nov 3 | Nov 6 | Nov 10 | Nov 12 | Nov 15 | Nov 19 | Nov 23 |
Freeze probabilities 1991–2020 at Crivitz High Falls, WI, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.
Frost risk on any date in 54114 →Compare Crivitz with another place →
Weather by month in Crivitz
July is the warmest month at Crivitz High Falls, WI, averaging 79°F by day and 54°F at night; January is the coldest at 23°F and 4°F. A freezing night is all but certain in every month from October to May (a 90% chance or more). From July to August the chance of a 32°F night stays under 10% each month. In spring, June still brings one in 32% of years.
Warmth for growing adds up to 1,842 growing degree days a year (base 50°F), fewer than at 93% of the 182 Wisconsin stations. 31% of them (570) have built up by the end of June, and July adds the most, 522. Precipitation totals 32.1 inches a year, most in June (3.9") and least in February (1.3"); May to September bring 55% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 23 | 4 | 1.4 | 100% | 31 | 0 |
| Feb | 28 | 5 | 1.3 | 100% | 28 | 0 |
| Mar | 39 | 16 | 1.9 | 100% | 28 | 2 |
| Apr | 52 | 27 | 3.0 | 100% | 22 | 21 |
| May | 66 | 40 | 3.2 | 99% | 8 | 166 |
| Jun | 75 | 50 | 3.9 | 32% | 1 | 382 |
| Jul | 79 | 54 | 3.7 | 0% | 0 | 522 |
| Aug | 78 | 53 | 3.2 | 3% | 0 | 476 |
| Sep | 69 | 44 | 3.7 | 76% | 3 | 230 |
| Oct | 55 | 33 | 2.8 | 100% | 17 | 41 |
| Nov | 40 | 22 | 2.2 | 100% | 26 | 2 |
| Dec | 28 | 11 | 1.8 | 100% | 30 | 0 |
Monthly normals 1991–2020 at Crivitz High Falls, WI (950 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
Compared with the next station
The nearest other station, Suring, WI, 21 miles southwest of Crivitz and 158 feet lower, has a last frost 12 days earlier (May 14), a first frost 9 days later (October 1), a season 21 days longer.
When it snows in Crivitz, Wisconsin
The first measurable snow (0.1 inch or more) in Crivitz usually arrives around November 11, and the last of the season around April 13. Those are the middle dates across the winters of 1991–2020 at Crivitz High Falls, WI, 8.1 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 43 days after the last snow.
Planting calendar for 54114
| When | What to do |
|---|---|
| March 17 – March 31 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| March 31 – April 14 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| April 28 – May 12 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| May 26 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by June 30 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by September 8 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| September 22 onward | Plant garlic, mulch beds, lift tender bulbsGarlic wants a cold spell; bare soil loses structure over winter. |
The weeks before and after the 50% dates are general rules of thumb, not NOAA figures; a seed packet gives the timing for each variety.
Where these figures come from
ZIP 54114 is 8 miles from Crivitz High Falls, WI, which stands at 950 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 54114 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.
Frost dates across Wisconsin →
Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.
Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.