Climatological Report (Daily)
Issued by NWS St Louis, MO
Issued by NWS St Louis, MO
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726
CDUS43 KLSX 212229
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
529 PM CDT THU AUG 21 2025
...................................
...THE ST. LOUIS CLIMATE SUMMARY FOR AUGUST 21 2025...
VALID AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1874 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 79 316 PM 104 2003 88 -9 76
MINIMUM 67 642 AM 50 1940 69 -2 62
1950
AVERAGE 73 78 -5 69
PRECIPITATION (IN)
TODAY 0.00 2.07 1944 0.10 -0.10 0.00
MONTH TO DATE 1.48 2.38 -0.90 1.06
SINCE JUN 1 10.44 10.80 -0.36 10.57
SINCE JAN 1 32.09 28.67 3.42 31.36
SNOWFALL (IN)
TODAY 0.0 0.0 2015 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 4 -4 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 8 13 -5 4
MONTH TO DATE 330 305 25 279
SINCE JUN 1 1283 1132 151 1210
SINCE JAN 1 1454 1327 127 1523
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 7.3
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84 500 AM
LOWEST 58 300 PM
AVERAGE 71
..........................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 103 1936
MINIMUM TEMPERATURE (F) 69 55 1875
1950
SUNRISE AND SUNSET
AUGUST 21 2025........SUNRISE 621 AM CDT SUNSET 747 PM CDT
AUGUST 22 2025........SUNRISE 622 AM CDT SUNSET 746 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$