179 CDUS43 KLOT 180635 CLIRFD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 134 AM CDT MON SEP 18 2017 ................................... ...THE ROCKFORD IL CLIMATE SUMMARY FOR SEPTEMBER 17 2017... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1905 TO 2017 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .................................................................. TEMPERATURE (F) YESTERDAY MAXIMUM 77 134 PM 93 1988 75 2 81 1927 MINIMUM 54 1140 PM 35 1916 52 2 58 AVERAGE 66 64 2 70 PRECIPITATION (IN) YESTERDAY 0.00 2.21 1970 0.12 -0.12 0.00 MONTH TO DATE 0.07 1.95 -1.88 1.53 SINCE SEP 1 0.07 1.95 -1.88 1.53 SINCE JAN 1 36.86 27.61 9.25 27.45 SNOWFALL (IN) YESTERDAY 0.0 0.0 MM 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 4 -4 0 MONTH TO DATE 50 36 14 2 SINCE SEP 1 50 36 14 2 SINCE JUL 1 57 50 7 2 COOLING YESTERDAY 1 2 -1 5 MONTH TO DATE 27 65 -38 104 SINCE SEP 1 27 65 -38 104 SINCE JAN 1 711 792 -81 1021 .................................................................. WIND (MPH) HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (330) HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (340) AVERAGE WIND SPEED 5.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. NO SIGNIFICANT WEATHER WAS OBSERVED. RELATIVE HUMIDITY (PERCENT) HIGHEST 93 1000 PM LOWEST 64 100 PM AVERAGE 79 .......................................................... THE ROCKFORD IL CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 75 92 1920 MINIMUM TEMPERATURE (F) 51 32 1929 1916 SUNRISE AND SUNSET SEPTEMBER 18 2017.....SUNRISE 640 AM CDT SUNSET 700 PM CDT SEPTEMBER 19 2017.....SUNRISE 641 AM CDT SUNSET 658 PM CDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$