Frost Dates for Armstrong 4se, TX

Elevation: 8 m

Frost Dates

Last Spring Frost (50%) A 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%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. December 5

30% Probability

Only 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 4
First Fall Frost November 26

Hard Freeze (28°F)

Last Spring Hard Freeze January 31
First Fall Hard Freeze December 22
26.83°N, 97.71°W © OpenStreetMap

Growing Season

287 Days February 22 to December 5

USDA Hardiness Zone

Hardiness 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 9b

Avg. annual minimum: 25 to 30°F

Learn more

Köppen Climate

The 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

Avg High Avg Temp Avg Low
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January70°57°45°
February75°62°50°
March80°67°55°
April86°74°61°
May91°80°69°
June96°84°72°
July96°85°73°
August98°85°73°
September94°82°70°
October88°75°62°
November79°66°54°
December73°60°48°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January2.8
February2.2
March3.3
April4.2
May7.1
June5.9
July2.9
August3.7
September8.5
October7.1
November4.8
December3.1

Sunrise / Sunset

Daylight Longest: 13h 41m · Shortest: 10h 19m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (local solar time)
Month Sunrise Sunset Daylight
January6:45 AM5:15 PM10h 29m
February6:27 AM5:33 PM11h 05m
March6:06 AM5:54 PM11h 49m
April5:41 AM6:19 PM12h 38m
May5:20 AM6:40 PM13h 19m
June5:10 AM6:50 PM13h 41m
July5:14 AM6:46 PM13h 32m
August5:31 AM6:29 PM12h 57m
September5:56 AM6:04 PM12h 09m
October6:20 AM5:40 PM11h 21m
November6:40 AM5:20 PM10h 39m
December6:50 AM5:10 PM10h 19m

Nearby Stations

Port Mansfield, TX January 12 - January 1 Raymondville, TX January 21 - December 26 Sarita 7 E, TX February 17 - December 8 Edinburg 17 Nne, TX January 21 - December 23 San Manuel, TX January 25 - January 1 Mccook, TX January 22 - December 19

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