Climatological Report (Daily)
Issued by NWS Chicago, IL

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CDUS43 KLOT 020640
CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1239 AM CST SAT DEC 2 2017


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

...THE ROCKFORD IL CLIMATE SUMMARY FOR DECEMBER 1 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         53    123 PM  62    1970  39     14       40
  MINIMUM         23    723 AM  -3    1966  23      0       35
  AVERAGE         38                        31      7       38

PRECIPITATION (IN)
  YESTERDAY        0.00          1.46 1985   0.08  -0.08     0.01
  MONTH TO DATE    0.00                      0.08  -0.08     0.01
  SINCE DEC 1      0.00                      0.08  -0.08     0.01
  SINCE JAN 1     44.18                     34.34   9.84    33.29

SNOWFALL (IN)
  YESTERDAY        0.0          10.7  2006   0.3   -0.3       T
  MONTH TO DATE    0.0                       0.3   -0.3       T
  SINCE DEC 1      0.0                       0.3   -0.3       T
  SINCE JUL 1      0.2                       2.1   -1.9       T
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       27                        34     -7       27
  MONTH TO DATE   27                        34     -7       27
  SINCE DEC 1     27                        34     -7       27
  SINCE JUL 1   1241                      1369   -128      896

 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    12   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     4.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           800 AM
 LOWEST     35           300 PM
 AVERAGE    64

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


THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   38        64      2012
                                             1982
 MINIMUM TEMPERATURE (F)   23        -4      1976
                                             1942


SUNRISE AND SUNSET
DECEMBER  2 2017......SUNRISE   707 AM CST   SUNSET   425 PM CST
DECEMBER  3 2017......SUNRISE   708 AM CST   SUNSET   425 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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