USDA Hardiness Zone 8a
Frost Dates for 39730 — Aberdeen, Mississippi
NOAA 1991–2020 normals from Aberdeen, MS (198 ft), 2 miles east.
Updated
In Aberdeen, the last spring frost (32°F) is around March 29 in half of years and has passed by April 14 in nine years out of ten. The first fall frost comes around November 5, as early as October 24 one year in ten, leaving a typical freeze-free season of 223 days (NOAA, Aberdeen, MS).
- Last spring frost
- March 29
- First fall frost
- November 5
- Growing season
- 223 days
- Hardiness zone
- 8a
50% probability
50% probability
freeze-free, 50%
10 to 15°F (-12.2 to -9.4°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 17%
- Snow per year
- 0.1"
median, 1991–2020
median, 1991–2020
4 of 24 observed
NOAA normal
Frost risk by date in Aberdeen
Half of springs at Aberdeen, MS see their last 32°F night by March 29; only one in ten is past it by March 8, and one in ten still has one after April 14. Planting tender crops after April 4 leaves a 30% risk of a frost on them, after April 8 20%, and after April 14 10%. The 16 days between the even-odds date and the one-in-ten date is narrower than at 86% of the 96 Mississippi stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 5 in half of years, as early as October 24 one year in ten, and holds off past November 20 one year in ten. A hard freeze of 28°F follows 10 days later, around November 15; in spring the one-in-ten date for 28°F is April 3, 11 days before the 32°F one. The freeze-free season lasts 223 days in a typical year, shorter than at 77% of the 96 Mississippi stations; it reaches 248 days one year in ten and falls short of 200 one year in ten. On average 60 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 11 days longer, to about April 9, and return around October 28. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 80%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 23 | Mar 29 | Apr 2 | Apr 6 | Apr 9 | Apr 12 | Apr 16 | Apr 22 | Apr 27 |
| 32°F | Mar 8 | Mar 16 | Mar 20 | Mar 25 | Mar 29 | Apr 1 | Apr 4 | Apr 8 | Apr 14 |
| 28°F | Feb 21 | Feb 28 | Mar 5 | Mar 10 | Mar 14 | Mar 18 | Mar 22 | Mar 28 | Apr 3 |
| 24°F | Feb 3 | Feb 13 | Feb 18 | Feb 23 | Feb 27 | Mar 3 | Mar 7 | Mar 12 | Mar 18 |
| 20°F97% of yrs | Jan 10 | Jan 24 | Jan 31 | Feb 4 | Feb 11 | Feb 16 | Feb 22 | Feb 28 | Mar 5 |
| 16°F80% of yrs | Dec 31 | Jan 8 | Jan 16 | Jan 22 | Jan 28 | Jan 31 | Feb 4 | Feb 11 | Feb 23 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 16 | Oct 21 | Oct 23 | Oct 26 | Oct 28 | Oct 31 | Nov 2 | Nov 5 | Nov 10 |
| 32°F | Oct 24 | Oct 28 | Nov 1 | Nov 2 | Nov 5 | Nov 8 | Nov 11 | Nov 15 | Nov 20 |
| 28°F | Nov 1 | Nov 5 | Nov 8 | Nov 12 | Nov 15 | Nov 19 | Nov 24 | Nov 29 | Dec 3 |
| 24°F | Nov 10 | Nov 15 | Nov 21 | Nov 26 | Dec 1 | Dec 3 | Dec 8 | Dec 16 | Dec 27 |
| 20°F97% of yrs | Nov 24 | Dec 1 | Dec 7 | Dec 13 | Dec 21 | Dec 27 | Jan 1 | Jan 5 | Jan 15 |
| 16°F80% of yrs | Dec 8 | Dec 19 | Dec 27 | Jan 1 | Jan 3 | Jan 8 | Jan 13 | Jan 19 | Feb 1 |
Freeze probabilities 1991–2020 at Aberdeen, 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 39730 →Compare Aberdeen with another place →
Weather by month in Aberdeen
July is the warmest month at Aberdeen, MS, averaging 90°F by day and 69°F at night; January is the coldest at 52°F and 31°F. A freezing night is all but certain in every month from November to March (a 90% chance or more). From May to September the chance of a 32°F night stays under 10% each month. In spring, April still brings one in 41% of years.
Warmth for growing adds up to 5,086 growing degree days a year (base 50°F), fewer than at 90% of the 96 Mississippi stations. 39% of them (1,979) have built up by the end of June, and July adds the most, 924. Precipitation totals 54.4 inches a year, most in April (5.8") and least in October (3.3"); May to September bring 38% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 52 | 31 | 5.0 | 100% | 17 | 37 |
| Feb | 57 | 33 | 5.3 | 100% | 12 | 49 |
| Mar | 65 | 41 | 4.6 | 92% | 6 | 167 |
| Apr | 73 | 48 | 5.8 | 41% | 1 | 336 |
| May | 81 | 58 | 4.8 | 0% | 0 | 597 |
| Jun | 88 | 65 | 4.3 | 0% | 0 | 793 |
| Jul | 90 | 69 | 4.3 | 0% | 0 | 924 |
| Aug | 90 | 68 | 3.5 | 0% | 0 | 904 |
| Sep | 85 | 62 | 3.7 | 0% | 0 | 711 |
| Oct | 75 | 50 | 3.3 | 30% | 1 | 399 |
| Nov | 64 | 39 | 4.0 | 96% | 8 | 125 |
| Dec | 55 | 33 | 5.8 | 100% | 16 | 45 |
Monthly normals 1991–2020 at Aberdeen, MS (198 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, Verona Exp Stn, MS, 25 miles northwest of Aberdeen, has a last frost 8 days earlier (March 21), a first frost 4 days later (November 9), a season 10 days longer.
When it snows in Aberdeen, Mississippi
Measurable snow is rare here: only 4 of 24 winters from 1991 to 2020 recorded 0.1 inch or more at Aberdeen, MS, 1.9 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 39730
| When | What to do |
|---|---|
| January 18 – February 1 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 1 – February 15 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 1 – March 15 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| March 29 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 13 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 22 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 5 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 39730 is 2 miles from Aberdeen, MS, which stands at 198 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 38821 (Amory). The 2023 USDA Plant Hardiness Zone Map lists ZIP 39730 in zone 8a, the band where the coldest night of the year averaged 10 to 15°F (-12.2 to -9.4°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.