USDA Hardiness Zone 4a
Frost Dates for 58054 — Lisbon, North Dakota
NOAA 1991–2020 normals from Lisbon, ND (1,149 ft), 1 miles northwest.
Updated
In Lisbon, the last spring frost (32°F) is around May 12 in half of years and has passed by May 23 in nine years out of ten. The first fall frost comes around September 27, as early as September 14 one year in ten, leaving a typical freeze-free season of 136 days (NOAA, Lisbon, ND).
- Last spring frost
- May 12
- First fall frost
- September 27
- Growing season
- 136 days
- Hardiness zone
- 4a
50% probability
50% probability
freeze-free, 50%
-30 to -25°F (-34.4 to -31.7°C) coldest night
- First snow
- November 7
- Last snow
- April 11
- Winters with snow
- 100%
- Snow per year
- 46.7"
median, 1991–2020
median, 1991–2020
23 of 23 observed
NOAA normal
Frost risk by date in Lisbon
Half of springs at Lisbon, ND see their last 32°F night by May 12; only one in ten is past it by April 30, and one in ten still has one after May 23. Planting tender crops after May 17 leaves a 30% risk of a frost on them, after May 20 20%, and after May 23 10%. The 11 days between the even-odds date and the one-in-ten date is the narrowest of the 33 North Dakota stations behind this site's ZIP pages.
In fall the first 32°F night comes by September 27 in half of years, as early as September 14 one year in ten, and holds off past October 8 one year in ten. A hard freeze of 28°F follows 7 days later, around October 4; in spring the one-in-ten date for 28°F is May 15, 8 days before the 32°F one. The freeze-free season lasts 136 days in a typical year, shorter than at 52% of the 33 North Dakota stations; it reaches 153 days one year in ten and falls short of 118 one year in ten. On average 182 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 21, and return around September 19. Severe cold of 16°F or below comes every winter, usually between November 3 and April 6.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 10 | May 14 | May 17 | May 19 | May 21 | May 24 | May 26 | May 30 | Jun 3 |
| 32°F | Apr 30 | May 4 | May 7 | May 9 | May 12 | May 14 | May 17 | May 20 | May 23 |
| 28°F | Apr 20 | Apr 25 | Apr 28 | Apr 30 | May 3 | May 5 | May 7 | May 10 | May 15 |
| 24°F | Apr 10 | Apr 13 | Apr 17 | Apr 20 | Apr 22 | Apr 25 | Apr 28 | May 1 | May 5 |
| 20°F | Apr 1 | Apr 5 | Apr 8 | Apr 11 | Apr 13 | Apr 16 | Apr 19 | Apr 23 | Apr 28 |
| 16°F | Mar 24 | Mar 30 | Apr 1 | Apr 3 | Apr 6 | Apr 9 | Apr 12 | Apr 16 | Apr 21 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 6 | Sep 10 | Sep 14 | Sep 16 | Sep 19 | Sep 21 | Sep 23 | Sep 26 | Sep 30 |
| 32°F | Sep 14 | Sep 19 | Sep 22 | Sep 25 | Sep 27 | Sep 29 | Oct 1 | Oct 4 | Oct 8 |
| 28°F | Sep 23 | Sep 27 | Sep 30 | Oct 2 | Oct 4 | Oct 7 | Oct 10 | Oct 14 | Oct 18 |
| 24°F | Oct 1 | Oct 5 | Oct 8 | Oct 11 | Oct 14 | Oct 18 | Oct 21 | Oct 25 | Oct 29 |
| 20°F | Oct 8 | Oct 13 | Oct 18 | Oct 22 | Oct 26 | Oct 28 | Nov 1 | Nov 3 | Nov 8 |
| 16°F | Oct 19 | Oct 26 | Oct 29 | Nov 1 | Nov 3 | Nov 6 | Nov 9 | Nov 13 | Nov 17 |
Freeze probabilities 1991–2020 at Lisbon, ND, 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 58054 →Compare Lisbon with another place →
Weather by month in Lisbon
July is the warmest month at Lisbon, ND, averaging 82°F by day and 58°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 89% of years.
Warmth for growing adds up to 2,230 growing degree days a year (base 50°F), more than at 61% of the 33 North Dakota stations. 32% of them (704) have built up by the end of June, and July adds the most, 626. Precipitation totals 22.4 inches a year, most in June (3.4") and least in January (0.7"); May to September bring 65% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 19 | 0 | 0.7 | 100% | 31 | 0 |
| Feb | 24 | 3 | 0.9 | 100% | 28 | 0 |
| Mar | 37 | 16 | 1.0 | 100% | 29 | 1 |
| Apr | 54 | 29 | 1.5 | 100% | 18 | 29 |
| May | 67 | 43 | 3.1 | 89% | 3 | 209 |
| Jun | 77 | 54 | 3.4 | 1% | 0 | 465 |
| Jul | 82 | 58 | 2.9 | 0% | 0 | 626 |
| Aug | 81 | 55 | 2.7 | 0% | 0 | 558 |
| Sep | 72 | 46 | 2.4 | 66% | 2 | 288 |
| Oct | 56 | 32 | 2.2 | 100% | 15 | 52 |
| Nov | 39 | 19 | 0.8 | 100% | 27 | 2 |
| Dec | 25 | 7 | 0.8 | 100% | 31 | 0 |
Monthly normals 1991–2020 at Lisbon, ND (1,149 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, Oakes, ND, 28 miles southwest of Lisbon and 175 feet higher, has a last frost 4 days earlier (May 8), a first frost 1 day later (September 28), a season 8 days longer.
When it snows in Lisbon, North Dakota
The first measurable snow (0.1 inch or more) in Lisbon usually arrives around November 7, and the last of the season around April 11. Those are the middle dates across the winters of 1991–2020 at Lisbon, ND, 1.1 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 31 days after the last snow.
Planting calendar for 58054
| When | What to do |
|---|---|
| March 3 – March 17 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| March 17 – March 31 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| April 14 – April 28 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| May 12 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by July 5 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by September 13 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| September 27 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 58054 is 1 mile from Lisbon, ND, which stands at 1,149 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 58054 in zone 4a, the band where the coldest night of the year averaged -30 to -25°F (-34.4 to -31.7°C) over 1991–2020; a zone describes winter lows, not frost dates.
Frost dates across North Dakota →
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.