783
CDUS43 KLSX 172135
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
435 PM CDT SAT MAY 17 2025
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR MAY 17 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 76 259 PM 94 1996 77 -1 84
MINIMUM 61 604 AM 40 1973 58 3 66
AVERAGE 69 68 1 75
PRECIPITATION (IN)
TODAY 0.00 3.95 1995 0.15 -0.15 T
MONTH TO DATE 1.92 2.74 -0.82 3.38
SINCE MAR 1 15.68 10.97 4.71 13.70
SINCE JAN 1 19.67 15.79 3.88 18.13
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 53 -8 2
SINCE MAR 1 597 891 -294 545
SINCE JUL 1 3822 4410 -588 3351
COOLING
TODAY 4 5 -1 10
MONTH TO DATE 58 60 -2 90
SINCE MAR 1 124 104 20 178
SINCE JAN 1 124 105 19 178
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 15.5
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 50 600 AM
LOWEST 39 200 AM
AVERAGE 45
......................................................
THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 94 1996
MINIMUM TEMPERATURE (F) 59 39 2002
SUNRISE AND SUNSET
MAY 17 2025...........SUNRISE 547 AM CDT SUNSET 809 PM CDT
MAY 18 2025...........SUNRISE 547 AM CDT SUNSET 810 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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