USDA Hardiness Zone 6b
Frost Dates for 65669 — Highlandville, Missouri
NOAA 1991–2020 normals from Ozark, MO (1,134 ft), 8 miles northeast.
Updated
In Highlandville, the last spring frost (32°F) is around April 15 in half of years and has passed by April 30 in nine years out of ten. The first fall frost comes around October 23, as early as October 10 one year in ten, leaving a typical freeze-free season of 189 days (NOAA, Ozark, MO).
- Last spring frost
- April 15
- First fall frost
- October 23
- Growing season
- 189 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
- January 10
- Last snow
- February 6
- Winters with snow
- 74%
- Snow per year
- 6.8"
median, 1991–2020
median, 1991–2020
14 of 19 observed
NOAA normal
Frost risk by date in Highlandville
Half of springs at Ozark, MO see their last 32°F night by April 15; only one in ten is past it by March 31, and one in ten still has one after April 30. Planting tender crops after April 22 leaves a 30% risk of a frost on them, after April 26 20%, and after April 30 10%. The 15 days between the even-odds date and the one-in-ten date is narrower than at 54% of the 158 Missouri stations behind this site's ZIP pages.
In fall the first 32°F night comes by October 23 in half of years, as early as October 10 one year in ten, and holds off past November 4 one year in ten. A hard freeze of 28°F follows 9 days later, around November 1; in spring the one-in-ten date for 28°F is April 18, 12 days before the 32°F one. The freeze-free season lasts 189 days in a typical year, shorter than at 67% of the 158 Missouri stations; it reaches 211 days one year in ten and falls short of 168 one year in ten. On average 108 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 12 days longer, to about April 27, and return around October 14. Severe cold of 16°F or below comes every winter, usually between December 2 and March 1.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 12 | Apr 17 | Apr 20 | Apr 24 | Apr 27 | Apr 30 | May 2 | May 6 | May 10 |
| 32°F | Mar 31 | Apr 5 | Apr 10 | Apr 12 | Apr 15 | Apr 19 | Apr 22 | Apr 26 | Apr 30 |
| 28°F | Mar 18 | Mar 23 | Mar 28 | Mar 31 | Apr 3 | Apr 6 | Apr 9 | Apr 13 | Apr 18 |
| 24°F | Mar 4 | Mar 10 | Mar 14 | Mar 19 | Mar 22 | Mar 26 | Mar 30 | Apr 2 | Apr 7 |
| 20°F | Feb 22 | Feb 28 | Mar 3 | Mar 6 | Mar 10 | Mar 13 | Mar 17 | Mar 22 | Mar 29 |
| 16°F | Feb 8 | Feb 16 | Feb 21 | Feb 26 | Mar 1 | Mar 4 | Mar 7 | Mar 12 | Mar 18 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 1 | Oct 5 | Oct 9 | Oct 11 | Oct 14 | Oct 16 | Oct 19 | Oct 22 | Oct 27 |
| 32°F | Oct 10 | Oct 14 | Oct 18 | Oct 20 | Oct 23 | Oct 25 | Oct 28 | Oct 31 | Nov 4 |
| 28°F | Oct 19 | Oct 23 | Oct 26 | Oct 29 | Nov 1 | Nov 3 | Nov 5 | Nov 10 | Nov 15 |
| 24°F | Oct 28 | Nov 1 | Nov 4 | Nov 7 | Nov 11 | Nov 14 | Nov 17 | Nov 21 | Nov 26 |
| 20°F | Nov 5 | Nov 10 | Nov 13 | Nov 17 | Nov 21 | Nov 25 | Nov 29 | Dec 2 | Dec 7 |
| 16°F | Nov 13 | Nov 20 | Nov 24 | Nov 28 | Dec 2 | Dec 6 | Dec 10 | Dec 17 | Dec 24 |
Freeze probabilities 1991–2020 at Ozark, MO, 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 65669 →Compare Highlandville with another place →
Compared with the next station
The nearest other station, Galena, MO, 12 miles southwest of Highlandville, has a last frost 1 day later (April 16), a first frost 2 days earlier (October 21), a season 2 days shorter.
When it snows in Highlandville, Missouri
The first measurable snow (0.1 inch or more) in Highlandville usually arrives around January 10, and the last of the season around February 6. Those are the middle dates across the winters of 1991–2020 at Ozark, MO, 7.8 miles away: half of years saw snow earlier, half later. Snow fell in 74% of those winters. The last 32°F night of spring typically comes 68 days after the last snow.
Planting calendar for 65669
| When | What to do |
|---|---|
| February 4 – February 18 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 18 – March 4 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 18 – April 1 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 15 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by July 31 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 9 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| October 23 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 65669 is 8 miles from Ozark, MO, which stands at 1,134 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 2 other ZIP codes share the station; its figures are presented in full for 65714 (Nixa). The 2023 USDA Plant Hardiness Zone Map lists ZIP 65669 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.