Frost Dates for 75402 — Greenville, Texas

Half of springs at Greenville Kgvl Radio, TX see their last 32°F night by March 18; only one in ten is past it by February 27, and one in ten still has one after April 6. Planting tender crops after March 26 leaves a 30% risk of a frost on them, after March 31 20%, and after April 6 10%. The 19 days between the even-odds date and the one-in-ten date is narrower than at 63% of the 339 Texas stations behind this site's ZIP pages.

In fall the first 32°F night comes by November 16 in half of years, as early as November 1 one year in ten, and holds off past December 5 one year in ten. A hard freeze of 28°F follows 12 days later, around November 28; in spring the one-in-ten date for 28°F is March 23, 14 days before the 32°F one. The freeze-free season lasts 244 days in a typical year, shorter than at 55% of the 339 Texas stations; it reaches 268 days one year in ten and falls short of 215 one year in ten. On average 50 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 14 days longer, to about April 1, and return around November 5. Nights of 24°F, cold enough to damage hardier plants, come in 99% of winters and 16°F in 56%.

August is the warmest month at Greenville Kgvl Radio, TX, averaging 98°F by day and 73°F at night; January is the coldest at 58°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 85% of years and April still brings one in 19% of years.

Warmth for growing adds up to 6,444 growing degree days a year (base 50°F), more than at 53% of the 351 Texas stations. 39% of them (2,531) have built up by the end of June, and August adds the most, 1,110. Precipitation totals 47.2 inches a year, most in May (5.8") and least in August (2.4"); May to September bring 41% of it.

The nearest other station, Lake Tawakoni, TX, 20 miles southeast of Greenville, has a last frost 2 days earlier (March 16), a first frost 2 days earlier (November 14), a season 2 days shorter.

Measurable snow is rare here: only 3 of 18 winters from 1991 to 2020 recorded 0.1 inch or more at Greenville Kgvl Radio, TX, 5.9 miles away, so there is no typical first-snow date to plan around.

ZIP 75402 is 6 miles from Greenville Kgvl Radio, TX, which stands at 545 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 7 other ZIP codes share the station; its figures are presented in full for 75401 (Greenville). The 2023 USDA Plant Hardiness Zone Map lists ZIP 75402 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.