Frost Dates for Lackland Air Force Base, TX

Based on data from San Antonio Kelly Afb weather station, 2 miles away

Frost Dates

Last Spring Frost (50%) iA 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. February 22
First Fall Frost (50%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. December 2
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.

Last Spring Frost March 2
First Fall Frost November 25

Hard Freeze (28°F)

Last Spring Hard Freeze February 1
First Fall Hard Freeze December 16
29.39°N, -98.62°W © OpenStreetMap

Growing Season

284 Days February 22 to December 2

USDA Hardiness Zone iHardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.

Zone 9a

Avg. annual minimum: 20 to 25°F (−7 to −4°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

Cfa Humid Subtropical

Hot, humid summers and mild winters with rain year-round. Long growing seasons support a wide variety of vegetables, fruits, and ornamentals. The most common climate in the eastern US.

Köppen climate map

Temperature

40° 60° 80° 100°
53°
High: 64°F
Avg: 53°F
Low: 41°F
Jan
57°
High: 70°F
Avg: 57°F
Low: 44°F
Feb
64°
High: 75°F
Avg: 64°F
Low: 52°F
Mar
70°
High: 82°F
Avg: 70°F
Low: 59°F
Apr
78°
High: 89°F
Avg: 78°F
Low: 66°F
May
82°
High: 93°F
Avg: 82°F
Low: 72°F
Jun
85°
High: 96°F
Avg: 85°F
Low: 74°F
Jul
86°
High: 97°F
Avg: 86°F
Low: 74°F
Aug
81°
High: 92°F
Avg: 81°F
Low: 70°F
Sep
72°
High: 84°F
Avg: 72°F
Low: 60°F
Oct
60°
High: 72°F
Avg: 60°F
Low: 49°F
Nov
53°
High: 65°F
Avg: 53°F
Low: 41°F
Dec
Avg High Avg Temp Avg Low

Precipitation

0" 2" 4" 5.8"
2.4"
2.38"
Jan
1.8"
1.76"
Feb
3.0"
3.01"
Mar
4.3"
4.27"
Apr
4.4"
4.43"
May
5.2"
5.15"
Jun
5.8"
5.75"
Jul
5.0"
4.96"
Aug
5.3"
5.32"
Sep
5.2"
5.20"
Oct
2.9"
2.89"
Nov
2.3"
2.31"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10.5h11h12h12.5h13.5h14h13.5h13h12h11.5h10.5h10h
Jan: 6:51 AM – 5:09 PM · 10h 19m
Feb: 6:31 AM – 5:29 PM · 10h 59m
Mar: 6:06 AM – 5:54 PM · 11h 47m
Apr: 5:39 AM – 6:21 PM · 12h 43m
May: 5:16 AM – 6:44 PM · 13h 28m
Jun: 5:04 AM – 6:56 PM · 13h 52m
Jul: 5:09 AM – 6:51 PM · 13h 43m
Aug: 5:28 AM – 6:32 PM · 13h 04m
Sep: 5:55 AM – 6:05 PM · 12h 10m
Oct: 6:22 AM – 5:38 PM · 11h 16m
Nov: 6:45 AM – 5:15 PM · 10h 30m
Dec: 6:56 AM – 5:04 PM · 10h 08m
Daylight Longest: 13h 53m · Shortest: 10h 07m

Nearby Stations

San Antonio Stinson AP, TX February 20 - December 3 San Antonio/Seaworld, TX February 18 - December 9 San Antonio Incarnate Word, TX February 25 - November 28 San Antonio Intl AP, TX February 26 - November 28 Lytle 3w, TX February 24 - December 2 Randolph Afb, TX February 21 - December 5

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