USDA Hardiness Zone 8b
Frost Dates for 38762 — Mound Bayou, Mississippi
NOAA 1991–2020 normals from Cleveland 3 N, MS (140 ft), 7 miles south.
Updated
In Mound Bayou, the last spring frost (32°F) is around March 15 in half of years and has passed by April 3 in nine years out of ten. The first fall frost comes around November 11, as early as October 28 one year in ten, leaving a typical freeze-free season of 241 days (NOAA, Cleveland 3 N, MS).
- Last spring frost
- March 15
- First fall frost
- November 11
- Growing season
- 241 days
- Hardiness zone
- 8b
50% probability
50% probability
freeze-free, 50%
15 to 20°F (-9.4 to -6.7°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 5%
- Snow per year
- 0.1"
median, 1991–2020
median, 1991–2020
1 of 20 observed
NOAA normal
Frost risk by date in Mound Bayou
Half of springs at Cleveland 3 N, MS see their last 32°F night by March 15; only one in ten is past it by February 24, and one in ten still has one after April 3. Planting tender crops after March 23 leaves a 30% risk of a frost on them, after March 28 20%, and after April 3 10%. The 19 days between the even-odds date and the one-in-ten date is narrower than at 38% of the 96 Mississippi stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 11 in half of years, as early as October 28 one year in ten, and holds off past December 2 one year in ten. A hard freeze of 28°F follows 14 days later, around November 25; in spring the one-in-ten date for 28°F is March 22, 12 days before the 32°F one. The freeze-free season lasts 241 days in a typical year, longer than at 52% of the 96 Mississippi stations; it reaches 266 days one year in ten and falls short of 217 one year in ten. On average 51 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 15 days longer, to about March 30, and return around November 1. Nights of 24°F, cold enough to damage hardier plants, come in 98% of winters and 16°F in 49%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 9 | Mar 17 | Mar 22 | Mar 26 | Mar 30 | Apr 2 | Apr 4 | Apr 8 | Apr 14 |
| 32°F | Feb 24 | Mar 2 | Mar 7 | Mar 11 | Mar 15 | Mar 19 | Mar 23 | Mar 28 | Apr 3 |
| 28°F | Feb 5 | Feb 15 | Feb 23 | Feb 27 | Mar 2 | Mar 6 | Mar 11 | Mar 16 | Mar 22 |
| 24°F98% of yrs | Jan 15 | Jan 26 | Feb 1 | Feb 7 | Feb 14 | Feb 21 | Feb 26 | Mar 3 | Mar 11 |
| 20°F85% of yrs | Dec 31 | Jan 9 | Jan 15 | Jan 21 | Jan 27 | Jan 31 | Feb 7 | Feb 17 | Feb 28 |
| 16°F49% of yrs | too rare for a date | ||||||||
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 17 | Oct 23 | Oct 27 | Oct 30 | Nov 1 | Nov 4 | Nov 7 | Nov 11 | Nov 18 |
| 32°F | Oct 28 | Nov 1 | Nov 5 | Nov 8 | Nov 11 | Nov 15 | Nov 20 | Nov 25 | Dec 2 |
| 28°F | Nov 6 | Nov 11 | Nov 16 | Nov 20 | Nov 25 | Nov 30 | Dec 4 | Dec 11 | Dec 22 |
| 24°F98% of yrs | Nov 14 | Nov 23 | Nov 29 | Dec 5 | Dec 11 | Dec 20 | Dec 27 | Jan 2 | Jan 11 |
| 20°F85% of yrs | Dec 1 | Dec 14 | Dec 24 | Dec 30 | Jan 1 | Jan 7 | Jan 12 | Jan 18 | Jan 28 |
| 16°F49% of yrs | too rare for a date | ||||||||
Freeze probabilities 1991–2020 at Cleveland 3 N, MS, 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 38762 →Compare Mound Bayou with another place →
Weather by month in Mound Bayou
July is the warmest month at Cleveland 3 N, MS, averaging 92°F by day and 72°F at night; January is the coldest at 52°F and 33°F. A freezing night is all but certain in every month from December to February (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 79% of years and April still brings one in 14% of years.
Warmth for growing adds up to 5,632 growing degree days a year (base 50°F), fewer than at 66% of the 96 Mississippi stations. 40% of them (2,267) have built up by the end of June, and July adds the most, 987. Precipitation totals 54.2 inches a year, most in February (5.4") and least in July (3.1"); May to September bring 36% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 52 | 33 | 5.2 | 100% | 16 | 43 |
| Feb | 56 | 36 | 5.4 | 99% | 11 | 62 |
| Mar | 65 | 43 | 5.1 | 79% | 4 | 188 |
| Apr | 74 | 52 | 4.9 | 14% | <1 | 398 |
| May | 83 | 62 | 5.1 | 0% | 0 | 691 |
| Jun | 89 | 70 | 4.0 | 0% | 0 | 885 |
| Jul | 92 | 72 | 3.1 | 0% | 0 | 987 |
| Aug | 92 | 70 | 3.7 | 0% | 0 | 962 |
| Sep | 87 | 63 | 3.6 | 0% | 0 | 751 |
| Oct | 77 | 52 | 3.9 | 17% | <1 | 449 |
| Nov | 64 | 41 | 5.2 | 84% | 5 | 159 |
| Dec | 54 | 36 | 5.0 | 100% | 15 | 57 |
Monthly normals 1991–2020 at Cleveland 3 N, MS (140 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, Cleveland, MS, 10 miles south of Mound Bayou, has a last frost 1 day earlier (March 14), a first frost 4 days later (November 15), a season 7 days longer.
When it snows in Mound Bayou, Mississippi
Measurable snow is rare here: only 1 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Cleveland 3 N, MS, 6.5 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 38762
| When | What to do |
|---|---|
| January 4 – January 18 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| January 18 – February 1 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| February 15 – March 1 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| March 15 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 19 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 28 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 11 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 38762 is 7 miles from Cleveland 3 N, MS, which stands at 140 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 3 other ZIP codes share the station; its figures are presented in full for 38737 (Drew). The 2023 USDA Plant Hardiness Zone Map lists ZIP 38762 in zone 8b, the band where the coldest night of the year averaged 15 to 20°F (-9.4 to -6.7°C) over 1991–2020; a zone describes winter lows, not frost dates.
Frost dates across Mississippi →
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.