205
CDUS43 KLSX 212127
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
427 PM CDT WED MAY 21 2025
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR MAY 21 2025
VALID TODAY AS OF 0400 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 74 258 PM 93 1941 79 -5 91
MINIMUM 58 557 AM 38 1883 60 -2 73
AVERAGE 66 69 -3 82
PRECIPITATION (IN)
TODAY 0.00 2.00 1957 0.15 -0.15 0.32
MONTH TO DATE 3.42 3.34 0.08 3.70
SINCE MAR 1 17.18 11.57 5.61 14.02
SINCE JAN 1 21.17 16.39 4.78 18.45
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 0.3 2.5 -2.2 T
SINCE JUL 1 18.6 16.6 2.0 9.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 2 -2 0
MONTH TO DATE 45 61 -16 2
SINCE MAR 1 597 899 -302 545
SINCE JUL 1 3822 4418 -596 3351
COOLING
TODAY 1 6 -5 17
MONTH TO DATE 84 82 2 149
SINCE MAR 1 150 126 24 237
SINCE JAN 1 150 127 23 237
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 16.5
SKY COVER
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 500 AM
LOWEST 39 300 PM
AVERAGE 55
......................................................
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 2025...........SUNRISE 544 AM CDT SUNSET 812 PM CDT
MAY 22 2025...........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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