637
CDUS43 KLSX 212237
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
537 PM CDT THU MAY 21 2026
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR MAY 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 71 135 PM 93 1941 79 -8 74
MINIMUM 54 616 AM 38 1883 60 -6 58
AVERAGE 63 69 -6 66
PRECIPITATION (IN)
TODAY 0.00 2.00 1957 0.15 -0.15 0.00
MONTH TO DATE 4.17 3.34 0.83 3.41
SINCE MAR 1 16.21 11.57 4.64 17.17
SINCE JAN 1 18.63 16.39 2.24 21.16
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 MAR 1 T 2.5 -2.5 0.3
SINCE JUL 1 18.5 16.6 1.9 18.6
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 2 2 0 0
MONTH TO DATE 74 61 13 45
SINCE MAR 1 568 899 -331 597
SINCE JUL 1 3868 4418 -550 3822
COOLING
TODAY 0 6 -6 1
MONTH TO DATE 52 82 -30 84
SINCE MAR 1 194 126 68 150
SINCE JAN 1 194 127 67 150
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NE (40)
AVERAGE WIND SPEED 8.7
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 71 500 AM
LOWEST 59 1200 PM
AVERAGE 65
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 79 94 1925
MINIMUM TEMPERATURE (F) 60 37 1883
SUNRISE AND SUNSET
MAY 21 2026...........SUNRISE 545 AM CDT SUNSET 812 PM CDT
MAY 22 2026...........SUNRISE 544 AM CDT SUNSET 813 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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