480 CDUS43 KLOT 180636 CLIRFD CLIMATE REPORT NATIONAL WEATHER SERVICE CHICAGO IL 1233 AM CST MON DEC 18 2017 ................................... ...THE ROCKFORD IL CLIMATE SUMMARY FOR DECEMBER 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 40 341 PM 50 2006 32 8 20 1977 1941 MINIMUM 27 1214 AM -12 1945 17 10 13 AVERAGE 34 25 9 17 PRECIPITATION (IN) YESTERDAY 0.01 0.80 1921 0.06 -0.05 0.13 MONTH TO DATE 0.12 1.21 -1.09 1.38 SINCE DEC 1 0.12 1.21 -1.09 1.38 SINCE JAN 1 44.30 35.47 8.83 34.66 SNOWFALL (IN) YESTERDAY 0.0 3.8 1951 0.4 -0.4 2.0 MONTH TO DATE 1.5 5.9 -4.4 15.0 SINCE DEC 1 1.5 5.9 -4.4 15.0 SINCE JUL 1 1.7 7.7 -6.0 15.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 31 40 -9 48 MONTH TO DATE 574 638 -64 727 SINCE DEC 1 574 638 -64 727 SINCE JUL 1 1788 1973 -185 1596 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 828 820 8 1103 .................................................................. WIND (MPH) HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (60) HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION E (80) AVERAGE WIND SPEED 4.8 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.9 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. LIGHT RAIN FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 96 300 AM LOWEST 79 200 PM AVERAGE 88 .......................................................... THE ROCKFORD IL CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 32 55 1941 MINIMUM TEMPERATURE (F) 17 -17 1983 SUNRISE AND SUNSET DECEMBER 18 2017......SUNRISE 720 AM CST SUNSET 426 PM CST DECEMBER 19 2017......SUNRISE 721 AM CST SUNSET 427 PM CST - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$