Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for 78611 — Burnet, TX

ZIP code 78611 (Burnet, Burnet County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 15 and the first fall frost November 11.

Where ZIP 78611 is

Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone8b15 to 20 °F
Coldest night−9.4 to −6.7 °C
Last frostMar 15
First frostNov 11
2012 zone8a

Was 8a on the 2012 map — half a zone warmer now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 8b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Burnet, TX…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Burnet, TX

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 15median — 50% chance of a later frost
Safe for tender plantsApril 6only 10% chance of frost after
First fall frostNovember 11median — 10% chance by Oct 28
Growing season243 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 2 and returns around November 25.

From the NOAA station Burnet, TX — 4 miles away, elevation 1,286 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in 78611

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 1 – Feb 15
SpinachSow outdoors · Feb 1 – Feb 22
Broccoli, cabbageStart indoors · Jan 4 – Jan 18
Broccoli, cabbageTransplant · Feb 22 – Mar 8
Onion setsPlant outdoors · Feb 15 – Mar 1
PotatoesPlant outdoors · Feb 22 – Mar 8
LettuceSow outdoors · Feb 15 – Mar 1
Carrots, beetsSow outdoors · Feb 22 – Mar 8
TomatoesStart indoors · Jan 18 – Feb 1
TomatoesTransplant · Mar 22 – Apr 5
Peppers, eggplantStart indoors · Jan 4 – Jan 18
Peppers, eggplantTransplant · Mar 29 – Apr 12
BeansSow outdoors · Mar 22 – Apr 5
Sweet cornSow outdoors · Mar 22 – Apr 5
Cucumbers, squashSow outdoors · Mar 22 – Apr 5
Fall lettuce, spinachSow outdoors · Sep 16 – Sep 30
GarlicPlant cloves · Oct 28 – Dec 2
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 15) and first fall frost (Nov 11) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 78611 came on Jan 30 — about the same time as the 1991–2020 average (Feb 1).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Soil in Burnet, TX

The soil mapped at the center of ZIP 78611 is Nebgen — fine sandy loam, well drained.

TextureFine sandy loamdrains and warms fast; dries out and needs more feeding
pH6.8neutral; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter0.75%low — add compost
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Nebgen-Oben-Rock outcrop complex, 1 to 20 percent slopes.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 78611; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Burnet, TX

Summer high95 °Faverage high, August
Winter low34 °Faverage low, January
Hot days98days a year at 90 °F or more
Freezing nights42nights a year at 32 °F or less
Growing degree days6,137base 50 °F — the season’s usable heat
Longest day14 h 09 mindaylight on June 21
Shortest day10 h 09 mindaylight on December 21
Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb
Precipitation32.1 inper year, rain and melted snow

Average high and low, by month

20°30°40°50°60°70°80°90°100°110°32 °FJanuary: average high 59 °F, low 34 °F 59°34° JanFebruary: average high 63 °F, low 38 °F 63°38° FebMarch: average high 70 °F, low 46 °F 70°46° MarApril: average high 77 °F, low 53 °F 77°53° AprMay: average high 84 °F, low 62 °F 84°62° MayJune: average high 90 °F, low 69 °F 90°69° JunJuly: average high 94 °F, low 71 °F 94°71° JulAugust: average high 95 °F, low 71 °F 95°71° AugSeptember: average high 88 °F, low 65 °F 88°65° SepOctober: average high 79 °F, low 54 °F 79°54° OctNovember: average high 68 °F, low 44 °F 68°44° NovDecember: average high 60 °F, low 36 °F 60°36° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 1.93 in precipitation 1.9 JanFebruary: 1.88 in precipitation 1.9 FebMarch: 2.77 in precipitation 2.8 MarApril: 2.61 in precipitation 2.6 AprMay: 4.35 in precipitation 4.3 MayJune: 3.41 in precipitation 3.4 JunJuly: 1.78 in precipitation 1.8 JulAugust: 2.30 in precipitation 2.3 AugSeptember: 2.92 in precipitation 2.9 SepOctober: 3.44 in precipitation 3.4 OctNovember: 2.54 in precipitation 2.5 NovDecember: 2.14 in precipitation 2.1 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Burnet, TX (4 mi away); precipitation: Burnet 4.2 W, TX (2 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 8b.

786098b
Buchanan Dam, TX · 11 mi
786078b
Bluffton, TX · 12 mi
786728b
Tow, TX · 13 mi
786058b
Bertram, TX · 14 mi
786398b
Kingsland, TX · 14 mi
768248b
Bend, TX · 14 mi
786548b
Marble Falls, TX · 16 mi
786578b
Horseshoe Bay, TX · 19 mi

Texas planting zones →

Questions about 78611

What planting zone is ZIP code 78611?

ZIP code 78611 (Burnet, TX) is in USDA hardiness zone 8b on the 2023 map: the coldest night of an average winter reaches 15 to 20 °F (−9.4 to −6.7 °C).

When is the last frost in Burnet, TX?

The median last spring frost (32 °F) near 78611 is March 15; after April 6 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Burnet station.

When is the first frost in Burnet, TX?

The median first fall frost near 78611 is November 11, giving a median frost-free growing season of 243 days.

When should I plant tomatoes in 78611?

Start tomato seeds indoors around Jan 18 – Feb 1 and set transplants outside around Mar 22 – Apr 5, one to three weeks after the median last frost.

How much rain and snow does 78611 get?

About 32.1 inches of precipitation a year (NOAA 1991–2020 normals, Burnet 4.2 W station).

How hot do summers get in Burnet, TX?

The average high peaks at 95 °F in August, with about 98 days a year at 90 °F or more.

What kind of soil does 78611 have?

The USDA soil survey maps Nebgen at the center of ZIP 78611: fine sandy loam, well drained, pH about 6.8 (neutral).

Did spring come early in Burnet, TX in 2026?

Spring leaf-out near 78611 came on Jan 30 in 2026, about the same as the 1991–2020 average (Feb 1), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Burnet, TX?

Short-day onions: the longest day near 78611 is 14 h 09 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

Did the zone for 78611 change?

Yes. The 2012 USDA map put 78611 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.