Climatological Report (Daily)
Issued by NWS St Louis, MO
Issued by NWS St Louis, MO
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CDUS43 KLSX 212229
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
529 PM CDT MON JUL 21 2025
...................................
...THE ST. LOUIS CLIMATE SUMMARY FOR JULY 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 87 327 PM 106 1901 90 -3 82
MINIMUM 72 235 AM 54 1944 71 1 71
1970
AVERAGE 80 81 -1 77
PRECIPITATION (IN)
TODAY 1.57R 1.49 1977 0.12 1.45 0.00
MONTH TO DATE 4.33 2.67 1.66 7.45
SINCE JUN 1 8.71 7.16 1.55 8.57
SINCE JAN 1 30.36 25.03 5.33 29.36
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 15 16 -1 12
MONTH TO DATE 341 324 17 298
SINCE JUN 1 749 675 74 765
SINCE JAN 1 920 870 50 1078
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION S (170)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 6.1
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 100 AM
LOWEST 67 100 PM
AVERAGE 82
..........................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 108 2017
MINIMUM TEMPERATURE (F) 71 55 1947
1970
SUNRISE AND SUNSET
JULY 21 2025..........SUNRISE 554 AM CDT SUNSET 822 PM CDT
JULY 22 2025..........SUNRISE 555 AM CDT SUNSET 821 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$