686
CDUS43 KLSX 152228
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
528 PM CDT THU MAY 15 2025
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR MAY 15 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 88 350 PM 94 1944 77 11 79
MINIMUM 72 539 AM 39 1959 58 14 60
AVERAGE 80 67 13 70
PRECIPITATION (IN)
TODAY 0.00 1.91 1990 0.15 -0.15 0.00
MONTH TO DATE 1.28 2.44 -1.16 3.25
SINCE MAR 1 15.04 10.67 4.37 13.57
SINCE JAN 1 19.03 15.49 3.54 18.00
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 49 -4 2
SINCE MAR 1 597 887 -290 545
SINCE JUL 1 3822 4406 -584 3351
COOLING
TODAY 15 5 10 5
MONTH TO DATE 46 50 -4 75
SINCE MAR 1 112 94 18 163
SINCE JAN 1 112 95 17 163
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 11.6
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79 300 AM
LOWEST 57 300 PM
AVERAGE 68
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 93 2001
MINIMUM TEMPERATURE (F) 58 39 1875
SUNRISE AND SUNSET
MAY 15 2025...........SUNRISE 549 AM CDT SUNSET 807 PM CDT
MAY 16 2025...........SUNRISE 548 AM CDT SUNSET 808 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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