Frost Dates for 38917 — Carrollton, Mississippi

Half of springs at Greenwood Leflore Airport, MS see their last 32°F night by March 17; only one in ten is past it by February 26, and one in ten still has one after April 5. Planting tender crops after March 26 leaves a 30% risk of a frost on them, after March 31 20%, and after April 5 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 5 in half of years, as early as October 23 one year in ten, and holds off past November 23 one year in ten. A hard freeze of 28°F follows 13 days later, around November 18; in spring the one-in-ten date for 28°F is March 22, 14 days before the 32°F one. The freeze-free season lasts 231 days in a typical year, shorter than at 67% of the 96 Mississippi stations; it reaches 259 days one year in ten and falls short of 208 one year in ten. On average 49 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 April 1, and return around October 27. Nights of 24°F, cold enough to damage hardier plants, come in 100% of winters and 16°F in 63%.

July is the warmest month at Greenwood Leflore Airport, MS, averaging 92°F by day and 72°F at night; January is the coldest at 54°F and 35°F. A freezing night is all but certain in every month from November 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 83% of years and April still brings one in 18% of years.

Warmth for growing adds up to 5,840 growing degree days a year (base 50°F), more than at 53% of the 96 Mississippi stations. 41% of them (2,388) have built up by the end of June, and July adds the most, 978. Precipitation totals 51.6 inches a year, most in April (5.8") and least in August (3.2"); May to September bring 37% of it.

The nearest other station, Grenada, MS, 17 miles northeast of Carrollton, has a last frost 11 days later (March 28), a first frost 1 day earlier (November 4), a season 9 days shorter.

Measurable snow is rare here: only 7 of 22 winters from 1991 to 2020 recorded 0.1 inch or more at Elliott 4 NW, MS, 15.1 miles away, so there is no typical first-snow date to plan around.

ZIP 38917 is 9 miles from Greenwood Leflore Airport, MS, which stands at 133 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 38930 (Greenwood). The 2023 USDA Plant Hardiness Zone Map lists ZIP 38917 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.