Frost Dates for 78611 — Burnet, Texas

Half of springs at Burnet, TX see their last 32°F night by March 15; only one in ten is past it by February 25, and one in ten still has one after April 6. Planting tender crops after March 25 leaves a 30% risk of a frost on them, after March 31 20%, and after April 6 10%. The 22 days between the even-odds date and the one-in-ten date is wider than at 63% 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 November 11 in half of years, as early as October 28 one year in ten, and holds off past December 2 one year in ten. A hard freeze of 28°F follows 14 days later, around November 25; in spring the one-in-ten date for 28°F is March 19, 18 days before the 32°F one. The freeze-free season lasts 243 days in a typical year, shorter than at 56% of the 339 Texas stations; it reaches 272 days one year in ten and falls short of 213 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 16 days longer, to about March 31, and return around November 3. Nights of 24°F, cold enough to damage hardier plants, come in 98% of winters and 16°F in 37%.

July is the warmest month at Burnet, TX, averaging 94°F by day and 71°F at night; January is the coldest at 59°F and 34°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 79% of years and April still brings one in 18% of years.

Warmth for growing adds up to 6,137 growing degree days a year (base 50°F), fewer than at 65% of the 351 Texas stations. 41% of them (2,506) have built up by the end of June, and July adds the most, 1,012. Precipitation totals 32.4 inches a year, most in May (4.1") and least in January (1.9"); May to September bring 47% of it.

The nearest other station, Burnet Municipal Airport, TX, 4 miles southeast of Burnet, has a last frost 9 days earlier (March 6), a first frost 12 days later (November 23), a season 19 days longer.

Measurable snow is rare here: only 3 of 23 winters from 1991 to 2020 recorded 0.1 inch or more at Burnet, TX, 4 miles away, so there is no typical first-snow date to plan around.

ZIP 78611 is 4 miles from Burnet, TX, which stands at 1,285 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 78611 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.