Climatological Report (Daily)
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CDUS43 KLOT 110633
CLIPWK


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1231 AM CST MON DEC 11 2017


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

...THE CHICAGO EXECUTIVE CLIMATE SUMMARY FOR DECEMBER 10 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1996 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         33   1210 PM  57    2015  37     -4       23
  MINIMUM         20   1258 AM  -4    2013  22     -2       18
  AVERAGE         27                        29     -2       21

PRECIPITATION (IN)
  YESTERDAY        0.00          0.56 2003   0.06  -0.06     0.06
  MONTH TO DATE    0.27                      0.72  -0.45     0.52
  SINCE DEC 1      0.27                      0.72  -0.45     0.52
  SINCE JAN 1     42.26                     32.24  10.02    32.75

DEGREE DAYS
 HEATING
  YESTERDAY       38                        36      2       44
  MONTH TO DATE  293                       340    -47      353
  SINCE DEC 1    293                       340    -47      353
  SINCE JUL 1   1369                      1610   -241     1207

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    829                       789     40     1071
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   5   RESULTANT WIND DIRECTION   W (280)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     8.0



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


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


THE CHICAGO EXECUTIVE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   36        51      2015
 MINIMUM TEMPERATURE (F)   22         1      2013


SUNRISE AND SUNSET
DECEMBER 11 2017......SUNRISE   710 AM CST   SUNSET   420 PM CST
DECEMBER 12 2017......SUNRISE   711 AM CST   SUNSET   420 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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