USDA Hardiness Zone 8a
Frost Dates for 38965 — Water Valley, Mississippi
NOAA 1991–2020 normals from Water Valley, MS (310 ft), under a mile north.
Updated
In Water Valley, the last spring frost (32°F) is around April 1 in half of years and has passed by April 18 in nine years out of ten. The first fall frost comes around November 3, as early as October 22 one year in ten, leaving a typical freeze-free season of 219 days (NOAA, Water Valley, MS).
- Last spring frost
- April 1
- First fall frost
- November 3
- Growing season
- 219 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
- 40%
- Snow per year
- 0.7"
median, 1991–2020
median, 1991–2020
10 of 25 observed
NOAA normal
Frost risk by date in Water Valley
Half of springs at Water Valley, MS see their last 32°F night by April 1; only one in ten is past it by March 9, and one in ten still has one after April 18. Planting tender crops after April 7 leaves a 30% risk of a frost on them, after April 11 20%, and after April 18 10%. The 17 days between the even-odds date and the one-in-ten date is narrower than at 71% of the 96 Mississippi stations behind this site's ZIP pages.
In fall the first 32°F night comes by November 3 in half of years, as early as October 22 one year in ten, and holds off past November 20 one year in ten. A hard freeze of 28°F follows 11 days later, around November 14; in spring the one-in-ten date for 28°F is April 4, 14 days before the 32°F one. The freeze-free season lasts 219 days in a typical year, shorter than at 86% of the 96 Mississippi stations; it reaches 242 days one year in ten and falls short of 195 one year in ten. On average 76 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 13, and return around October 26. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 88%.
| Low | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Mar 29 | Apr 3 | Apr 6 | Apr 10 | Apr 13 | Apr 16 | Apr 20 | Apr 24 | Apr 29 |
| 32°F | Mar 9 | Mar 18 | Mar 23 | Mar 28 | Apr 1 | Apr 4 | Apr 7 | Apr 11 | Apr 18 |
| 28°F | Feb 24 | Feb 28 | Mar 6 | Mar 12 | Mar 16 | Mar 19 | Mar 24 | Mar 30 | Apr 4 |
| 24°F | Feb 7 | Feb 18 | Feb 23 | Feb 27 | Mar 1 | Mar 5 | Mar 9 | Mar 14 | Mar 20 |
| 20°F99% of yrs | Jan 20 | Jan 30 | Feb 3 | Feb 11 | Feb 17 | Feb 23 | Feb 28 | Mar 2 | Mar 9 |
| 16°F88% of yrs | Jan 4 | Jan 15 | Jan 23 | Jan 30 | Feb 1 | Feb 7 | Feb 15 | Feb 23 | Mar 1 |
| Low | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 13 | Oct 17 | Oct 21 | Oct 24 | Oct 26 | Oct 28 | Oct 31 | Nov 3 | Nov 7 |
| 32°F | Oct 22 | Oct 27 | Oct 30 | Nov 1 | Nov 3 | Nov 6 | Nov 9 | Nov 13 | Nov 20 |
| 28°F | Oct 31 | Nov 4 | Nov 7 | Nov 10 | Nov 14 | Nov 19 | Nov 22 | Nov 29 | Dec 4 |
| 24°F | Nov 7 | Nov 12 | Nov 17 | Nov 22 | Nov 28 | Dec 1 | Dec 5 | Dec 13 | Dec 25 |
| 20°F99% of yrs | Nov 19 | Nov 29 | Dec 4 | Dec 10 | Dec 19 | Dec 25 | Dec 30 | Jan 3 | Jan 13 |
| 16°F88% of yrs | Dec 4 | Dec 15 | Dec 25 | Dec 30 | Jan 2 | Jan 6 | Jan 12 | Jan 19 | Feb 1 |
Freeze probabilities 1991–2020 at Water Valley, 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 38965 →Compare Water Valley with another place →
Weather by month in Water Valley
July is the warmest month at Water Valley, MS, averaging 90°F by day and 70°F at night; January is the coldest at 53°F and 30°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 50% of years.
Warmth for growing adds up to 5,173 growing degree days a year (base 50°F), fewer than at 88% of the 96 Mississippi stations. 39% of them (2,027) have built up by the end of June, and July adds the most, 930. Precipitation totals 58.7 inches a year, most in April (6.3") and least in September (3.6"); May to September bring 39% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 53 | 30 | 5.3 | 100% | 21 | 39 |
| Feb | 57 | 32 | 5.1 | 100% | 16 | 52 |
| Mar | 66 | 40 | 5.3 | 94% | 9 | 174 |
| Apr | 74 | 48 | 6.3 | 50% | 2 | 340 |
| May | 82 | 58 | 5.1 | 1% | 0 | 608 |
| Jun | 88 | 66 | 5.1 | 0% | 0 | 816 |
| Jul | 90 | 70 | 4.9 | 0% | 0 | 930 |
| Aug | 91 | 68 | 4.0 | 0% | 0 | 924 |
| Sep | 86 | 61 | 3.6 | 0% | 0 | 712 |
| Oct | 76 | 49 | 3.7 | 36% | 1 | 398 |
| Nov | 64 | 38 | 4.6 | 96% | 10 | 129 |
| Dec | 55 | 33 | 5.7 | 100% | 18 | 53 |
Monthly normals 1991–2020 at Water Valley, MS (310 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, University, MS, 16 miles north of Water Valley, has a last frost 2 days later (April 3), a first frost 3 days earlier (October 31), a season 9 days shorter.
When it snows in Water Valley, Mississippi
Measurable snow is rare here: only 10 of 25 winters from 1991 to 2020 recorded 0.1 inch or more at Coffeeville, MS, 11.9 miles away, so there is no typical first-snow date to plan around.
Planting calendar for 38965
| When | What to do |
|---|---|
| January 21 – February 4 | Start peppers and aubergines indoorsThey need eight to ten weeks under lights before they can go out. |
| February 4 – February 18 | Start tomatoes indoorsSix to eight weeks gives a transplant big enough to set fruit early. |
| March 4 – March 18 | Sow peas, spinach, lettuce, radish outdoorsThese tolerate light frost and prefer to germinate in cool soil. |
| April 1 onward | Transplant tomatoes, peppers, basil, squash, cucumbersThe average last freeze has passed — still watch the actual forecast. |
| by August 11 | Sow the autumn crop of carrots, beets and brassicasThey need about twelve weeks to size up before growth stops. |
| by October 20 | Harvest tender crops, or be ready to cover themA first freeze two weeks early is well within normal variation. |
| November 3 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 38965 is under a mile from Water Valley, MS, which stands at 310 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station. The 2023 USDA Plant Hardiness Zone Map lists ZIP 38965 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.