USDA Hardiness Zone 6b
Frost Dates for 67456 — Lindsborg, Kansas
NOAA 1991–2020 normals from Smolan 1NE, KS (1,280 ft), 11 miles north.
Updated
In Lindsborg, the last spring frost (32°F) is around April 27 in half of years and has passed by May 10 in nine years out of ten. The first fall frost comes around October 16, as early as September 27 one year in ten, leaving a typical freeze-free season of 170 days (NOAA, Smolan 1NE, KS).
- Last spring frost
- April 27
- First fall frost
- October 16
- Growing season
- 170 days
- Hardiness zone
- 6b
50% probability
50% probability
freeze-free, 50%
-5 to 0°F (-20.6 to -17.8°C) coldest night
- First snow
- December 7
- Last snow
- March 4
- Winters with snow
- 96%
- Snow per year
- 14.2"
median, 1991–2020
median, 1991–2020
24 of 25 observed
NOAA normal
Frost risk by date in Lindsborg
Half of springs at Smolan 1NE, KS see their last 32°F night by April 27; only one in ten is past it by April 14, and one in ten still has one after May 10. Planting tender crops after May 2 leaves a 30% risk of a frost on them, after May 5 20%, and after May 10 10%. The 13 days between the even-odds date and the one-in-ten date is narrower than at 65% of the 110 Kansas stations behind this site's ZIP pages.
In fall the first 32°F night comes by October 16 in half of years, as early as September 27 one year in ten, and holds off past October 29 one year in ten. A hard freeze of 28°F follows 9 days later, around October 25; in spring the one-in-ten date for 28°F is May 3, 7 days before the 32°F one. The freeze-free season lasts 170 days in a typical year, shorter than at 93% of the 110 Kansas stations; it reaches 188 days one year in ten and falls short of 148 one year in ten. On average 137 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 6, and return around October 5. Severe cold of 16°F or below comes every winter, usually between November 22 and March 14.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 24 | Apr 28 | Apr 30 | May 3 | May 6 | May 8 | May 10 | May 14 | May 18 |
| 32°F | Apr 14 | Apr 18 | Apr 22 | Apr 25 | Apr 27 | Apr 30 | May 2 | May 5 | May 10 |
| 28°F | Apr 4 | Apr 8 | Apr 12 | Apr 15 | Apr 18 | Apr 21 | Apr 24 | Apr 28 | May 3 |
| 24°F | Mar 22 | Mar 28 | Apr 1 | Apr 4 | Apr 7 | Apr 11 | Apr 14 | Apr 19 | Apr 24 |
| 20°F | Mar 6 | Mar 13 | Mar 19 | Mar 23 | Mar 27 | Mar 31 | Apr 3 | Apr 7 | Apr 14 |
| 16°F | Feb 27 | Mar 3 | Mar 6 | Mar 10 | Mar 14 | Mar 18 | Mar 23 | Mar 29 | Apr 3 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 21 | Sep 26 | Sep 30 | Oct 2 | Oct 5 | Oct 8 | Oct 11 | Oct 15 | Oct 19 |
| 32°F | Sep 27 | Oct 2 | Oct 7 | Oct 12 | Oct 16 | Oct 19 | Oct 21 | Oct 24 | Oct 29 |
| 28°F | Oct 7 | Oct 16 | Oct 19 | Oct 22 | Oct 25 | Oct 28 | Oct 31 | Nov 2 | Nov 6 |
| 24°F | Oct 19 | Oct 24 | Oct 28 | Oct 31 | Nov 3 | Nov 5 | Nov 8 | Nov 11 | Nov 16 |
| 20°F | Oct 27 | Nov 1 | Nov 5 | Nov 8 | Nov 11 | Nov 14 | Nov 17 | Nov 22 | Nov 26 |
| 16°F | Nov 3 | Nov 9 | Nov 14 | Nov 18 | Nov 22 | Nov 25 | Nov 28 | Dec 1 | Dec 6 |
Freeze probabilities 1991–2020 at Smolan 1NE, KS, 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 67456 →Compare Lindsborg with another place →
Weather by month in Lindsborg
July is the warmest month at Smolan 1NE, KS, averaging 94°F by day and 67°F at night; January is the coldest at 42°F and 18°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 35% of years.
Warmth for growing adds up to 4,060 growing degree days a year (base 50°F), fewer than at 58% of the 110 Kansas stations. 34% of them (1,399) have built up by the end of June, and July adds the most, 939.
| Month | High °F | Low °F | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|
| Jan | 42 | 18 | 100% | 30 | 0 |
| Feb | 46 | 20 | 100% | 26 | 6 |
| Mar | 57 | 30 | 100% | 19 | 55 |
| Apr | 67 | 40 | 100% | 7 | 166 |
| May | 77 | 50 | 35% | 1 | 420 |
| Jun | 88 | 62 | 0% | 0 | 751 |
| Jul | 94 | 67 | 0% | 0 | 939 |
| Aug | 91 | 65 | 0% | 0 | 860 |
| Sep | 83 | 55 | 16% | <1 | 573 |
| Oct | 70 | 43 | 92% | 6 | 244 |
| Nov | 56 | 30 | 100% | 19 | 43 |
| Dec | 44 | 21 | 100% | 29 | 2 |
Monthly normals 1991–2020 at Smolan 1NE, KS (1,280 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, Salina Municipal Airport, KS, 15 miles north of Lindsborg, has a last frost 9 days earlier (April 18), a first frost 7 days later (October 23), a season 17 days longer.
When it snows in Lindsborg, Kansas
The first measurable snow (0.1 inch or more) in Lindsborg usually arrives around December 7, and the last of the season around March 4. Those are the middle dates across the winters of 1991–2020 at Lindsborg 3E, KS, 3.4 miles away: half of years saw snow earlier, half later. Snow fell in 96% of those winters. The last 32°F night of spring typically comes 54 days after the last snow.
Planting calendar for 67456
| When | What to do |
|---|---|
| February 16 – March 2 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| March 2 – March 16 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 30 – April 13 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 27 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by July 24 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 2 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 16 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 67456 is 11 miles from Smolan 1NE, KS, which stands at 1,280 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 67456 in zone 6b, the band where the coldest night of the year averaged -5 to 0°F (-20.6 to -17.8°C) over 1991–2020; a zone describes winter lows, not frost dates.
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.