Climatological Report (Daily)
Issued by NWS Chicago, IL

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CDUS43 KLOT 050638
CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1235 AM CST TUE DEC 5 2017


...................................

...THE ROCKFORD IL CLIMATE SUMMARY FOR DECEMBER 4 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         62    725 PM  65    1998  37     25       34
  MINIMUM         40   1159 PM  -4    1991  22     18       29
  AVERAGE         51                        29     22       32

PRECIPITATION (IN)
  YESTERDAY        T             1.29 1973   0.08  -0.08     0.48
  MONTH TO DATE    T                         0.31  -0.31     0.54
  SINCE DEC 1      T                         0.31  -0.31     0.54
  SINCE JAN 1     44.18                     34.57   9.61    33.82

SNOWFALL (IN)
  YESTERDAY        0.0           5.7  2010   0.3   -0.3      5.3
  MONTH TO DATE    0.0                       1.2   -1.2      5.3
  SINCE DEC 1      0.0                       1.2   -1.2      5.3
  SINCE JUL 1      0.2                       3.0   -2.8      5.3
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       14                        36    -22       33
  MONTH TO DATE   89                       140    -51      121
  SINCE DEC 1     89                       140    -51      121
  SINCE JUL 1   1303                      1475   -172      990

 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    35   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    56   HIGHEST GUST DIRECTION     W (260)
  AVERAGE WIND SPEED    19.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    77           800 AM
 LOWEST     60          1200 PM
 AVERAGE    69

..........................................................


THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   37        67      2001
 MINIMUM TEMPERATURE (F)   21        -5      2005


SUNRISE AND SUNSET
DECEMBER  5 2017......SUNRISE   710 AM CST   SUNSET   424 PM CST
DECEMBER  6 2017......SUNRISE   711 AM CST   SUNSET   424 PM CST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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