619  
CDUS44 KBRO 202127  
CLIHRL  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BROWNSVILLE, TX  
427 PM CDT SUN SEP 20 2026  
   
...............................  
 
...THE HARLINGEN-VALLEY INTL AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 20 2026...  
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1912 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 100 207 PM 106 1947 91 9 91  
MINIMUM 71 529 AM 59 1981 72 -1 73  
AVERAGE 86 82 4 82  
 
PRECIPITATION (IN)  
TODAY 0.00 3.85 1967 0.19 -0.19 T  
MONTH TO DATE 0.05 3.76 -3.71 2.52  
SINCE SEP 1 0.05 3.76 -3.71 2.52  
SINCE JAN 1 14.45 16.75 -2.30 31.76  
 
SNOWFALL (IN)  
TODAY 0.0  
MONTH TO DATE 0.0  
SINCE SEP 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE SEP 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
TODAY 21 17 4 17  
MONTH TO DATE 486 362 124 390  
SINCE SEP 1 486 362 124 390  
SINCE JAN 1 3900 3452 448 3588    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (100)  
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (80)  
AVERAGE WIND SPEED 4.8  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96  
LOWEST 38  
AVERAGE 67  
   
......................................................  
 
THE HARLINGEN-VALLEY INTL AIRPORT CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 91 106 1947  
MINIMUM TEMPERATURE (F) 72 59 1938  
 
SUNRISE AND SUNSET  
SEPTEMBER 20 2026.....SUNRISE 718 AM CDT SUNSET 729 PM CDT  
SEPTEMBER 21 2026.....SUNRISE 719 AM CDT SUNSET 728 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
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