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Weather & Climate

Willacy County, Texas, United States

Overview

Climate data and monthly weather averages for Willacy County.

Key Metrics

Annual Avg
24°C
Summer Avg
29.3°C
Winter Avg
17.6°C
Record High
39.1°C
Record Low
-0.1°C
Annual Precipitation
631.6 mm
Avg Humidity
74%
Summer Humidity
73%
Winter Humidity
75%

Monthly Averages

MonthHigh (°C)Avg (°C)Low (°C)Rain (mm)Humidity (%)Sunshine (h)Wind (kph)
Jan30.4°16.7°2676%9655.9
Feb32.3°18.2°-0.1°2375%10357.1
Mar35°20.8°30.475%14355.5
Apr38°24.1°10.2°33.674%16152.6
May37.5°26.7°13.4°59.574%18746
Jun39.1°29°21.8°75.373%19657.8
Jul37.6°29.2°23.4°70.774%20175.6
Aug38°29.6°22.9°4473%19357.1
Sep38.5°28.2°18.8°134.775%15551.1
Oct37°25.7°9.8°61.473%14352.4
Nov32.8°21.5°4.5°41.774%10555.4
Dec30.1°18°2.1°31.375%8763.6

Frequently Asked Questions

Sources: NASA POWER · Last updated: 2025

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