491 CDUS43 KLSX 110730 CLISTL CLIMATE REPORT NATIONAL WEATHER SERVICE ST LOUIS MO 230 AM CDT MON SEP 11 2017 ................................... ...THE ST. LOUIS CLIMATE SUMMARY FOR SEPTEMBER 10 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 77 351 PM 98 2013 83 -6 79 1983 1933 MINIMUM 60 604 AM 46 1976 63 -3 62 AVERAGE 69 73 -4 71 PRECIPITATION (IN) YESTERDAY 0.00 2.89 1984 0.10 -0.10 1.41 MONTH TO DATE 0.01 1.03 -1.02 3.36 SINCE SEP 1 0.01 1.03 -1.02 3.36 SINCE JAN 1 30.31 28.78 1.53 31.84 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 0 0 0 MONTH TO DATE 6 0 6 0 SINCE SEP 1 6 0 6 0 SINCE JUL 1 6 1 5 0 COOLING YESTERDAY 4 8 -4 6 MONTH TO DATE 53 98 -45 130 SINCE SEP 1 53 98 -45 130 SINCE JAN 1 1655 1497 158 1835 .................................................................. WIND (MPH) HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (90) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (30) AVERAGE WIND SPEED 7.6 SKY COVER AVERAGE SKY COVER 0.3 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 84 500 AM LOWEST 29 400 PM AVERAGE 57 .......................................................... THE ST. LOUIS CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 82 98 2013 MINIMUM TEMPERATURE (F) 63 42 1940 SUNRISE AND SUNSET SEPTEMBER 11 2017.....SUNRISE 640 AM CDT SUNSET 716 PM CDT SEPTEMBER 12 2017.....SUNRISE 641 AM CDT SUNSET 714 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$