Climatological Report (Daily)
Issued by NWS Austin/San Antonio, TX

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397
CDUS44 KEWX 180647
CLISAT

CLIMATE REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO
147 AM CDT TUE AUG 18 2026

...................................

...THE SAN ANTONIO CLIMATE SUMMARY FOR AUGUST 17 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1886 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM        100   4:51 PM 106    2023  96      4      101
  MINIMUM         78   6:25 AM  66    1885  75      3       79
  AVERAGE         89                        86      3       90

PRECIPITATION (IN)
  YESTERDAY        0.00          1.39 1967   0.06  -0.06     0.00
  MONTH TO DATE    0.00                      0.88  -0.88     0.06
  SINCE JUN 1      9.62                      6.57   3.05     8.72
  SINCE JAN 1     24.79                     19.40   5.39    20.31

SNOWFALL (IN)
  YESTERDAY        0.0
  MONTH TO DATE    0.0
  SINCE JUN 1      0.0
  SINCE JUL 1      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE JUN 1      0                         0      0        0
  SINCE JUL 1      0                         0      0        0

 COOLING
  YESTERDAY       24                        21      3       25
  MONTH TO DATE  399                       357     42      398
  SINCE JUN 1   1594                      1497     97     1590
  SINCE JAN 1   2537                      2122    415     2627
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION    SE (150)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION    SE (150)
  AVERAGE WIND SPEED     7.7


SKY COVER
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87           6:00 AM
 LOWEST     24           6:00 PM
 AVERAGE    56

..........................................................


THE SAN ANTONIO CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   96       105      1909
 MINIMUM TEMPERATURE (F)   75        64      1992


SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE   7:04 AM CDT   SUNSET   8:11 PM CDT
AUGUST 19 2026........SUNRISE   7:04 AM CDT   SUNSET   8:10 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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