Frost Dates for 39159 — Rolling Fork, Mississippi

Half of springs at Rolling Fork, MS see their last 32°F night by March 5; only one in ten is past it by February 12, and one in ten still has one after March 22. Planting tender crops after March 13 leaves a 30% risk of a frost on them, after March 17 20%, and after March 22 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 20 in half of years, as early as November 3 one year in ten, and holds off past December 10 one year in ten. A hard freeze of 28°F follows 15 days later, around December 5; in spring the one-in-ten date for 28°F is March 14, 8 days before the 32°F one. The freeze-free season lasts 261 days in a typical year, longer than at 89% of the 96 Mississippi stations; it reaches 290 days one year in ten and falls short of 236 one year in ten. On average 42 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 13 days longer, to about March 18, and return around November 7. Nights of 24°F, cold enough to damage hardier plants, come in 92% of winters and 16°F in 28%.

July is the warmest month at Rolling Fork, MS, averaging 93°F by day and 74°F at night; January is the coldest at 55°F and 37°F. A freezing night is all but certain in every month from December to February (a 90% chance or more). From April to October the chance of a 32°F night stays under 10% each month. In spring, March still brings one in 61% of years.

Warmth for growing adds up to 6,365 growing degree days a year (base 50°F), more than at 84% of the 96 Mississippi stations. 41% of them (2,621) have built up by the end of June, and July adds the most, 1,034. Precipitation totals 55.2 inches a year, most in April (6.1") and least in August (3.2"); May to September bring 36% of it.

The nearest other station, Lake Providence, LA, 11 miles west of Rolling Fork, has the same 50% last-frost date, a first frost 4 days later (November 24), a season 2 days longer.

Measurable snow is rare here: only 3 of 26 winters from 1991 to 2020 recorded 0.1 inch or more at Rolling Fork, MS, 8 miles away, so there is no typical first-snow date to plan around.

ZIP 39159 is 8 miles from Rolling Fork, MS, which stands at 105 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 38748 (Hollandale). The 2023 USDA Plant Hardiness Zone Map lists ZIP 39159 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.