Frost Dates for 77578 — Manvel, Texas

In the 89% of winters that bring a 32°F night, half of springs at Houston Clover Field, TX see their last 32°F night by January 31; only one in ten is past it by January 1, and one in ten still has one after March 5. Counting the winters with no freeze at all, the risk of a 32°F night after March 5 is under 9% and after January 31 44%. The 33 days between the even-odds date and the one-in-ten date is wider than at 95% of the 339 Texas stations behind this site's ZIP pages, so a fixed calendar date is a gamble here.

In fall the first 32°F night comes by December 27 in half of years, as early as November 28 one year in ten, and holds off past January 28 one year in ten. A hard freeze of 28°F follows 12 days later, around January 8; in spring the one-in-ten date for 28°F is February 20, 13 days before the 32°F one. The freeze-free season lasts 328 days in a typical year, longer than at 94% of the 339 Texas stations; it reaches 365 days one year in ten and falls short of 286 one year in ten. On average 6 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 21 days longer, to about February 21, and return around December 3. A 24°F night is unusual: 13% of winters had one.

August is the warmest month at Houston Clover Field, TX, averaging 94°F by day and 76°F at night; January is the coldest at 65°F and 46°F. From April to October the chance of a 32°F night stays under 10% each month. In spring, February still brings one in 34% of years and March still brings one in 14% of years.

Warmth for growing adds up to 7,903 growing degree days a year (base 50°F), more than at 88% of the 351 Texas stations. 43% of them (3,424) have built up by the end of June, and August adds the most, 1,088. Precipitation totals 53.2 inches a year, most in October (5.8") and least in March (2.8"); May to September bring 48% of it.

The nearest other station, Alvin, TX, 11 miles southeast of Manvel, has a last frost 14 days later (February 14), a first frost 22 days earlier (December 5), a season 30 days shorter.

Measurable snow is rare here: only 1 of 17 winters from 1991 to 2020 recorded 0.1 inch or more at Thompsons 3 WSW, TX, 16.4 miles away, so there is no typical first-snow date to plan around.

ZIP 77578 is 7 miles from Houston Clover Field, TX, which stands at 44 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 4 other ZIP codes share the station; its figures are presented in full for 77584 (Pearland). The 2023 USDA Plant Hardiness Zone Map lists ZIP 77578 in zone 9b, the band where the coldest night of the year averaged 25 to 30°F (-3.9 to -1.1°C) over 1991–2020; a zone describes winter lows, not frost dates.