Frost dates for New Braunfels, Texas
Half of years have their last spring frost by March 8, but 1 year in 10 still frosts after April 1.
A frost date is really a percentile from 30 years of records at a nearby weather station: in about half of years a frost still comes after the median date. Both numbers are below, so you can choose the risk yourself.
The odds
Last spring frost
How often a frost still comes on or after each date.
- 1 year in 10
- April 1
- 1 year in 5
- March 24
- 3 years in 10
- March 18
- 2 years in 5
- March 13
- Half of years (the median)
- March 8
First fall freeze
How often the first freeze comes on or before each date.
- 1 year in 10
- November 2
- 1 year in 5
- November 6
- 3 years in 10
- November 10
- 2 years in 5
- November 14
- Half of years (the median)
- November 18
- Growing season
- about 253 days
- Hardiness zone nearby
- 9a
- Summer days
- a usual high of about 34 °C93 °F
- Lettuce and spinach run to seed
- April to September, in hot, long days (how we know)
Summer and rain
A growing garden needs about 25 mm1 in of water a week, rain and watering together. Here is what a normal month brings.
- Hot-weather watering
- July to August: days run above 32 °C90 °F and nights stay above 21 °C70 °F, so expect to water daily or every other day (how we know)
Month by month
- January
- high ~16 °C62 °F · low ~3 °C37 °F · rain ~59 mm2.3 in
- February
- high ~19 °C66 °F · low ~4 °C40 °F · rain ~48 mm1.9 in
- March
- high ~22 °C72 °F · low ~9 °C48 °F · rain ~70 mm2.7 in
- April
- high ~26 °C79 °F · low ~12 °C54 °F · rain ~62 mm2.5 in
- May
- high ~29 °C85 °F · low ~18 °C64 °F · rain ~92 mm3.6 in
- June
- high ~32 °C90 °F · low ~21 °C70 °F · rain ~90 mm3.6 in
- July
- high ~34 °C93 °F · low ~22 °C72 °F · rain ~76 mm3 in
- August
- high ~35 °C95 °F · low ~22 °C71 °F · rain ~60 mm2.4 in
- September
- high ~32 °C89 °F · low ~19 °C66 °F · rain ~90 mm3.5 in
- October
- high ~27 °C81 °F · low ~13 °C56 °F · rain ~80 mm3.2 in
- November
- high ~21 °C71 °F · low ~8 °C46 °F · rain ~60 mm2.4 in
- December
- high ~17 °C63 °F · low ~4 °C40 °F · rain ~65 mm2.6 in
Where these numbers come from
NOAA NCEI 1991–2020 Climate Normals, the New Braunfels station (listed by NOAA as New Braunfels HCN, USC00416276), at 29.66, -98.16. These are that station’s own records, unshifted. The further your garden is from it, the less exactly they describe your ground. The planner finds the nearest station to your garden and lowers its confidence with distance, so no number is presented as if it were measured in your garden.
Cold air also pools in low ground on the clear, still nights when frost happens, so a hollow can freeze while a slope a few hundred feet away does not. No table can know that about your garden. A few seasons of your own logged frosts can.
ZIP codes nearest this station
78123, 78124, 78130, 78155.
Nearby stations
The nearest stations and how their last-frost dates compare. Together they show how frost varies across your area.
- Austin 6 S, TX, last frost by March 10
Other stations in Texas.
- Houston Sugarland Mem, TX, last frost by February 2
- Thompsons 3 WSW, TX, last frost by February 15
- Conroe Montgomery County Airport, TX, last frost by March 11
- Houston-Port, TX, last frost by February 2
- Dallas Redbird Airport, TX, last frost by March 6
- Fort Worth, TX, last frost by March 10
- Dallas Love Field, TX, last frost by March 2
- Denton Municipal Airport, TX, last frost by March 24
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