Climatological Report (Daily)
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CDUS43 KLOT 120632
CLIPWK


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1232 AM CST TUE DEC 12 2017


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

...THE CHICAGO EXECUTIVE CLIMATE SUMMARY FOR DECEMBER 11 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         38    327 PM  51    2015  36      2       33
  MINIMUM         20    300 AM   1    2013  22     -2       23
  AVERAGE         29                        29      0       28

PRECIPITATION (IN)
  YESTERDAY        T             0.33 2016   0.06  -0.06     0.33
  MONTH TO DATE    0.27                      0.78  -0.51     0.85
  SINCE DEC 1      0.27                      0.78  -0.51     0.85
  SINCE JAN 1     42.26                     32.30   9.96    33.08

DEGREE DAYS
 HEATING
  YESTERDAY       36                        36      0       37
  MONTH TO DATE  329                       376    -47      390
  SINCE DEC 1    329                       376    -47      390
  SINCE JUL 1   1405                      1646   -241     1244

 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   1   RESULTANT WIND DIRECTION  SW (210)
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED     8.0



WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  SNOW
  LIGHT SNOW
  FOG
  HAZE


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


THE CHICAGO EXECUTIVE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   36        51      2015
 MINIMUM TEMPERATURE (F)   22        -3      2000


SUNRISE AND SUNSET
DECEMBER 12 2017......SUNRISE   711 AM CST   SUNSET   420 PM CST
DECEMBER 13 2017......SUNRISE   712 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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