CDUS43 KLSX 182240 CLISTL CLIMATE REPORT NATIONAL WEATHER SERVICE ST LOUIS MO 540 PM CDT MON MAY 18 2026 ................................... ...THE ST. LOUIS CLIMATE SUMMARY FOR MAY 18 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 79 657 AM 94 1996 78 1 79 MINIMUM 66 357 PM 39 2002 59 7 60 AVERAGE 73 68 5 70 PRECIPITATION (IN) TODAY 1.71 2.38 1890 0.15 1.56 0.00 MONTH TO DATE 3.31 2.89 0.42 1.91 SINCE MAR 1 15.35 11.12 4.23 15.67 SINCE JAN 1 17.77 15.94 1.83 19.66 SNOWFALL (IN) TODAY MM 0.0 2015 0.0 MM 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 MM DEGREE DAYS HEATING TODAY 0 2 -2 0 MONTH TO DATE 68 55 13 45 SINCE MAR 1 562 893 -331 597 SINCE JUL 1 3862 4412 -550 3822 COOLING TODAY 8 5 3 5 MONTH TO DATE 49 65 -16 63 SINCE MAR 1 191 109 82 129 SINCE JAN 1 191 110 81 129 ................................................................... WIND (MPH) HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NW (320) HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (330) AVERAGE WIND SPEED 9.1 SKY COVER AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED TODAY. THUNDERSTORM HEAVY RAIN RAIN LIGHT RAIN FOG RELATIVE HUMIDITY (PERCENT) HIGHEST 97 400 PM LOWEST 66 100 AM AVERAGE 82 .......................................................... THE ST. LOUIS CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 78 94 1996 MINIMUM TEMPERATURE (F) 59 40 1894 SUNRISE AND SUNSET MAY 18 2026...........SUNRISE 547 AM CDT SUNSET 810 PM CDT MAY 19 2026...........SUNRISE 546 AM CDT SUNSET 811 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$