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 SEP 21 2026
...................................
...THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 21 2026...
VALID AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1874 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 73 148 PM 97 1881 79 -6 87
MINIMUM 68 723 AM 40 1983 59 9 67
AVERAGE 71 69 2 77
PRECIPITATION (IN)
TODAY 0.33 1.78 1947 0.10 0.23 T
MONTH TO DATE 1.31 2.14 -0.83 0.23
SINCE SEP 1 1.31 2.14 -0.83 0.23
SINCE JAN 1 37.57 31.81 5.76 32.32
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 SEP 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 1 -1 0
MONTH TO DATE 0 9 -9 4
SINCE SEP 1 0 9 -9 4
SINCE JUL 1 0 10 -10 4
COOLING
TODAY 6 6 0 12
MONTH TO DATE 383 173 210 203
SINCE SEP 1 383 173 210 203
SINCE JAN 1 1951 1623 328 1724
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NE (50)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 6.9
SKY COVER
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 500 AM
LOWEST 79 200 PM
AVERAGE 88
..........................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 95 1956
2017
MINIMUM TEMPERATURE (F) 59 40 1974
1995
SUNRISE AND SUNSET
SEPTEMBER 21 2026.....SUNRISE 648 AM CDT SUNSET 700 PM CDT
SEPTEMBER 22 2026.....SUNRISE 649 AM CDT SUNSET 658 PM CDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$