TODAY AUG17
TEMPERATURE79
HUMIDITY94
PRESSURE30.04
WIND COND.140 8.1
  • 10080Fri
  • 9978Sat
  • 9979Sun
  • 9878Mon
  • 9877Tue
daynightWeather update from Harlingen, Rio Grande Valley International Airport at

Harlingen Average Weather

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January50°F73°F60°F1.3"
February54°F77°F64°F0.8"
March60°F82°F69°F1.3"
April66°F88°F76°F1.4"
May71°F91°F80°F2.9"
June74°F95°F84°F1.7"
July76°F96°F84°F3.1"
August76°F97°F85°F2.2"
September73°F93°F81°F5.4"
October66°F89°F76°F2.1"
November58°F81°F68°F2.1"
December53°F74°F62°F1.6"

Did you know?

  • The highest monthly average temperature in Harlingen for August is 85 degrees.
  • The lowest monthly average temperature in Harlingen for January is 60 degrees.
  • The most monthly precipitation in Harlingen occurs in September with 5.4 inches.
  • The air quality index in Harlingen is 17% better than the national average.
  • The pollution index in Harlingen is 40% worse than the national average.

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Compare Harlingen, TX Weather To Other Cities

Harlingen air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexHarlingenTexasNational
Air quality index415250
Pollution index7,136,5304,642,9165,066,862

Harlingen air quality information

MeasurementTotal
Days measured365
Days with good air quality274
Days with moderate air quality91
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Harlingen air quality information

PollutantTotal
Arsenic0.010%
Benzene0.080%
Carbon Tetrachloride0.010%
Lead0.020%
Mercury0.001%

Average monthly Harlingen temperature with heat index

Harlingen monthly precipitation with daily maximum

Harlingen monthly snow depth with daily maximum

Harlingen monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Mercedes, TX16,5013628%
Relampago, TX443628%
Sebastian, TX1,5773628%
Yznaga, TX283628%
Heidelberg, TX1,5893628%
Harlingen, TX65,6344118%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Homestead, FL65,6884118%
Schenectady, NY65,5543628%
Bayonne, NJ65,772536%
Johnson City, TN65,4154510%
Eagan, MN65,8744412%
Harlingen, TX65,6344118%
Source: The Harlingen, TX weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.