Climatological Report (Daily)
Issued by NWS Chicago, IL

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CDUS43 KLOT 170634
CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT TUE OCT 17 2017


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

...THE ROCKFORD IL CLIMATE SUMMARY FOR OCTOBER 16 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         63    239 PM  87    1938  63      0       75
  MINIMUM         38    636 AM  27    1991  41     -3       65
                                      1944
  AVERAGE         51                        52     -1       70

PRECIPITATION (IN)
  YESTERDAY        0.00          0.91 1914   0.08  -0.08     0.17
  MONTH TO DATE    4.09                      1.39   2.70     0.44
  SINCE SEP 1      4.60                      4.74  -0.14     3.41
  SINCE JAN 1     41.39                     30.40  10.99    29.33

SNOWFALL (IN)
  YESTERDAY        0.0           T    1943   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       T
  SINCE JUL 1      0.0                       0.0    0.0       T
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       14                        14      0        0
  MONTH TO DATE   73                       179   -106       88
  SINCE SEP 1    148                       296   -148      112
  SINCE JUL 1    155                       310   -155      112

 COOLING
  YESTERDAY        0                         0      0        5
  MONTH TO DATE   14                         8      6       11
  SINCE SEP 1    141                        92     49      171
  SINCE JAN 1    825                       819      6     1088
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     W (280)
  AVERAGE WIND SPEED     5.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          1200 AM
 LOWEST     34           200 PM
 AVERAGE    64

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


THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   62        87      1950
                                             1947
                                             1938
 MINIMUM TEMPERATURE (F)   40        24      1992
                                             1952


SUNRISE AND SUNSET
OCTOBER 17 2017.......SUNRISE   712 AM CDT   SUNSET   611 PM CDT
OCTOBER 18 2017.......SUNRISE   713 AM CDT   SUNSET   609 PM CDT


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




$$



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