Frost Dates for La Grulla, TX

Based on data from Rio Grande City weather station, 13 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. January 31
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 17
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 February 15
First Fall Frost December 4

Hard Freeze (28°F)

Last Spring Hard Freeze January 12
First Fall Hard Freeze December 29
26.27°N, -98.65°W © OpenStreetMap

Growing Season

321 Days January 31 to December 17

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 9b

Avg. annual minimum: 25 to 30°F (−4 to −1°C)

Learn more

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

BSh Hot Semi-Arid (Steppe)

Hot with low but not negligible rainfall. Less extreme than true desert. Dryland farming techniques and drought-tolerant varieties work well. Mulching and water conservation are key.

Köppen climate map

Temperature

40° 60° 80° 100°
58°
High: 71°F
Avg: 58°F
Low: 45°F
Jan
63°
High: 76°F
Avg: 63°F
Low: 50°F
Feb
69°
High: 82°F
Avg: 69°F
Low: 56°F
Mar
76°
High: 89°F
Avg: 76°F
Low: 63°F
Apr
82°
High: 94°F
Avg: 82°F
Low: 70°F
May
86°
High: 98°F
Avg: 86°F
Low: 74°F
Jun
87°
High: 99°F
Avg: 87°F
Low: 75°F
Jul
87°
High: 99°F
Avg: 87°F
Low: 75°F
Aug
82°
High: 94°F
Avg: 82°F
Low: 71°F
Sep
76°
High: 88°F
Avg: 76°F
Low: 63°F
Oct
67°
High: 79°F
Avg: 67°F
Low: 54°F
Nov
59°
High: 72°F
Avg: 59°F
Low: 47°F
Dec
Avg High Avg Temp Avg Low

Precipitation

0" 2" 4" 6" 7.6"
1.8"
1.76"
Jan
1.6"
1.61"
Feb
3.0"
2.98"
Mar
4.0"
3.95"
Apr
7.6"
7.60"
May
7.5"
7.47"
Jun
5.0"
5.05"
Jul
5.0"
5.05"
Aug
7.1"
7.09"
Sep
4.6"
4.62"
Oct
2.6"
2.63"
Nov
1.9"
1.93"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec10.5h11h12h12.5h13.5h13.5h13.5h13h12h11.5h10.5h10.5h
Jan: 6:45 AM – 5:15 PM · 10h 31m
Feb: 6:27 AM – 5:33 PM · 11h 06m
Mar: 6:06 AM – 5:54 PM · 11h 49m
Apr: 5:41 AM – 6:19 PM · 12h 38m
May: 5:21 AM – 6:39 PM · 13h 18m
Jun: 5:11 AM – 6:49 PM · 13h 39m
Jul: 5:15 AM – 6:45 PM · 13h 30m
Aug: 5:32 AM – 6:28 PM · 12h 56m
Sep: 5:56 AM – 6:04 PM · 12h 09m
Oct: 6:19 AM – 5:41 PM · 11h 22m
Nov: 6:40 AM – 5:20 PM · 10h 41m
Dec: 6:49 AM – 5:11 PM · 10h 21m
Daylight Longest: 13h 39m · Shortest: 10h 21m

Nearby Stations

Falcon Dam, TX January 9 - January 1 La Joya, TX January 23 - December 28 Mcallen, TXJanuary 9 - January 1 Mcallen Miller Intl AP, TX January 9 - January 3 Edinburg, TXJanuary 8 - January 2 Zapata 1 S, TX January 19 - December 22

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