755 CDUS43 KLSX 180731 CLISTL CLIMATE REPORT NATIONAL WEATHER SERVICE ST LOUIS MO 230 AM CDT MON SEP 18 2017 ................................... ...THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 17 2017... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1874 TO 2017 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 82 315 PM 97 1931 80 2 83 MINIMUM 71 1159 PM 37 1937 60 11 70 AVERAGE 77 70 7 77 PRECIPITATION (IN) YESTERDAY T 2.25 1968 0.10 -0.10 0.00 MONTH TO DATE 0.07 1.75 -1.68 4.68 SINCE SEP 1 0.07 1.75 -1.68 4.68 SINCE JAN 1 30.37 29.50 0.87 33.16 SNOWFALL (IN) YESTERDAY 0.0 0.0 2015 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 0.0 SINCE SEP 1 0.0 0.0 0.0 0.0 SINCE JUL 1 0.0 0.0 0.0 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 1 -1 0 MONTH TO DATE 6 6 0 0 SINCE SEP 1 6 6 0 0 SINCE JUL 1 6 7 -1 0 COOLING YESTERDAY 12 6 6 12 MONTH TO DATE 110 147 -37 203 SINCE SEP 1 110 147 -37 203 SINCE JAN 1 1712 1546 166 1908 .................................................................. WIND (MPH) HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (330) HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (320) AVERAGE WIND SPEED 6.5 SKY COVER AVERAGE SKY COVER 0.8 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 90 1000 PM LOWEST 55 1200 PM AVERAGE 73 .......................................................... THE ST. LOUIS CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 79 97 1925 MINIMUM TEMPERATURE (F) 60 42 1973 SUNRISE AND SUNSET SEPTEMBER 18 2017.....SUNRISE 646 AM CDT SUNSET 704 PM CDT SEPTEMBER 19 2017.....SUNRISE 647 AM CDT SUNSET 703 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$