USDA Hardiness Zone 6a
Frost Dates for 67851 — Holcomb, Kansas
NOAA 1991–2020 normals from Garden City Exp Stn, KS (2,890 ft), 13 miles southeast.
Updated
In Holcomb, the last spring frost (32°F) is around April 28 in half of years and has passed by May 9 in nine years out of ten. The first fall frost comes around October 17, as early as October 1 one year in ten, leaving a typical freeze-free season of 171 days (NOAA, Garden City Exp Stn, KS).
- Last spring frost
- April 28
- First fall frost
- October 17
- Growing season
- 171 days
- Hardiness zone
- 6a
50% probability
50% probability
freeze-free, 50%
-10 to -5°F (-23.3 to -20.6°C) coldest night
- First snow
- November 29
- Last snow
- March 25
- Winters with snow
- 100%
- Snow per year
- 15.6"
median, 1991–2020
median, 1991–2020
30 of 30 observed
NOAA normal
Frost risk by date in Holcomb
Half of springs at Garden City Exp Stn, KS see their last 32°F night by April 28; only one in ten is past it by April 13, and one in ten still has one after May 9. Planting tender crops after May 3 leaves a 30% risk of a frost on them, after May 5 20%, and after May 9 10%. The 11 days between the even-odds date and the one-in-ten date is narrower than at 97% of the 110 Kansas stations behind this site's ZIP pages.
In fall the first 32°F night comes by October 17 in half of years, as early as October 1 one year in ten, and holds off past October 28 one year in ten. A hard freeze of 28°F follows 8 days later, around October 25; in spring the one-in-ten date for 28°F is May 2, 7 days before the 32°F one. The freeze-free season lasts 171 days in a typical year, shorter than at 90% of the 110 Kansas stations; it reaches 191 days one year in ten and falls short of 151 one year in ten. On average 148 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 8 days longer, to about May 6, and return around October 7. Severe cold of 16°F or below comes every winter, usually between November 19 and March 14.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 24 | Apr 29 | May 1 | May 4 | May 6 | May 8 | May 10 | May 13 | May 18 |
| 32°F | Apr 13 | Apr 17 | Apr 21 | Apr 25 | Apr 28 | Apr 30 | May 3 | May 5 | May 9 |
| 28°F | Apr 2 | Apr 6 | Apr 10 | Apr 14 | Apr 17 | Apr 20 | Apr 24 | Apr 28 | May 2 |
| 24°F | Mar 19 | Mar 26 | Mar 31 | Apr 2 | Apr 6 | Apr 8 | Apr 12 | Apr 18 | Apr 23 |
| 20°F | Mar 7 | Mar 13 | Mar 18 | Mar 23 | Mar 27 | Mar 31 | Apr 2 | Apr 6 | Apr 12 |
| 16°F | Feb 26 | Mar 3 | Mar 7 | Mar 11 | Mar 14 | Mar 19 | Mar 24 | Mar 31 | Apr 4 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Sep 24 | Sep 29 | Oct 2 | Oct 5 | Oct 7 | Oct 10 | Oct 12 | Oct 15 | Oct 19 |
| 32°F | Oct 1 | Oct 7 | Oct 11 | Oct 14 | Oct 17 | Oct 20 | Oct 22 | Oct 24 | Oct 28 |
| 28°F | Oct 12 | Oct 17 | Oct 21 | Oct 23 | Oct 25 | Oct 28 | Oct 31 | Nov 2 | Nov 6 |
| 24°F | Oct 20 | Oct 24 | Oct 28 | Oct 31 | Nov 2 | Nov 5 | Nov 7 | Nov 10 | Nov 15 |
| 20°F | Oct 27 | Nov 1 | Nov 4 | Nov 7 | Nov 10 | Nov 13 | Nov 16 | Nov 20 | Nov 24 |
| 16°F | Nov 2 | Nov 8 | Nov 12 | Nov 16 | Nov 19 | Nov 22 | Nov 25 | Nov 29 | Dec 4 |
Freeze probabilities 1991–2020 at Garden City Exp Stn, 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 67851 →Compare Holcomb with another place →
Weather by month in Holcomb
July is the warmest month at Garden City Exp Stn, KS, averaging 93°F by day and 65°F at night; January is the coldest at 46°F and 17°F. A freezing night is all but certain in every month from October to April (a 90% chance or more). From June to September the chance of a 32°F night stays under 10% each month. In spring, May still brings one in 39% of years.
Warmth for growing adds up to 3,934 growing degree days a year (base 50°F), fewer than at 72% of the 110 Kansas stations. 35% of them (1,375) have built up by the end of June, and July adds the most, 897. Precipitation totals 19.6 inches a year, most in July (3.2") and least in January (0.5"); May to September bring 67% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 46 | 17 | 0.5 | 100% | 31 | 1 |
| Feb | 49 | 20 | 0.6 | 100% | 27 | 8 |
| Mar | 59 | 29 | 1.1 | 100% | 21 | 56 |
| Apr | 68 | 37 | 1.7 | 99% | 9 | 160 |
| May | 78 | 49 | 2.8 | 39% | 1 | 422 |
| Jun | 89 | 60 | 3.1 | 0% | 0 | 729 |
| Jul | 93 | 65 | 3.2 | 0% | 0 | 897 |
| Aug | 91 | 63 | 2.8 | 0% | 0 | 831 |
| Sep | 84 | 54 | 1.3 | 8% | <1 | 564 |
| Oct | 71 | 40 | 1.3 | 94% | 7 | 227 |
| Nov | 57 | 27 | 0.5 | 100% | 22 | 38 |
| Dec | 47 | 18 | 0.7 | 100% | 30 | 2 |
Monthly normals 1991–2020 at Garden City Exp Stn, KS (2,890 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, Lakin, KS, 16 miles southwest of Holcomb, has a last frost 10 days earlier (April 18), a first frost 6 days later (October 23), a season 16 days longer.
When it snows in Holcomb, Kansas
The first measurable snow (0.1 inch or more) in Holcomb usually arrives around November 29, and the last of the season around March 25. Those are the middle dates across the winters of 1991–2020 at Garden City Exp Stn, KS, 12.9 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 34 days after the last snow.
Planting calendar for 67851
| When | What to do |
|---|---|
| February 17 – March 3 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| March 3 – March 17 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 31 – April 14 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 28 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by July 25 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 3 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 17 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 67851 is 13 miles from Garden City Exp Stn, KS, which stands at 2,890 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 67846 (Garden City). The 2023 USDA Plant Hardiness Zone Map lists ZIP 67851 in zone 6a, the band where the coldest night of the year averaged -10 to -5°F (-23.3 to -20.6°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.