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CDUS43 KLSX 172139
CLISTL
CLIMATE REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
439 PM CDT SUN MAY 17 2026
...............................
..THE ST. LOUIS CLIMATE SUMMARY FOR MAY 17 2026
VALID TODAY AS OF 0400 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 86 259 PM 94 1996 77 9 76
MINIMUM 66 402 AM 40 1973 58 8 61
AVERAGE 76 68 8 69
PRECIPITATION (IN)
TODAY 0.00 3.95 1995 0.15 -0.15 0.00
MONTH TO DATE 1.60 2.74 -1.14 1.91
SINCE MAR 1 13.64 10.97 2.67 15.67
SINCE JAN 1 16.06 15.79 0.27 19.66
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 0 2 -2 0
MONTH TO DATE 68 53 15 45
SINCE MAR 1 562 891 -329 597
SINCE JUL 1 3862 4410 -548 3822
COOLING
TODAY 11 5 6 4
MONTH TO DATE 40 60 -20 58
SINCE MAR 1 182 104 78 124
SINCE JAN 1 182 105 77 124
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WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 13.2
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 400 AM
LOWEST 48 300 PM
AVERAGE 68
......................................................
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 2026...........SUNRISE 548 AM CDT SUNSET 809 PM CDT
MAY 18 2026...........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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