Climatological Report (Daily)
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CDUS43 KLOT 210635
CLIPWK


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT THU SEP 21 2017


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

...THE CHICAGO EXECUTIVE CLIMATE SUMMARY FOR SEPTEMBER 20 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         93R   246 PM  87    1998  73     20       81
  MINIMUM         61    457 AM  42    2006  52      9       63
  AVERAGE         77                        63     14       72

PRECIPITATION (IN)
  YESTERDAY        0.00          0.75 2009   0.11  -0.11     0.00
  MONTH TO DATE    0.53                      2.09  -1.56     0.23
  SINCE SEP 1      0.53                      2.09  -1.56     0.23
  SINCE JAN 1     32.15                     24.57   7.58    25.60

DEGREE DAYS
 HEATING
  YESTERDAY        0                         4     -4        0
  MONTH TO DATE   43                        41      2        1
  SINCE SEP 1     43                        41      2        1
  SINCE JUL 1     49                        51     -2        3

 COOLING
  YESTERDAY       12                         2     10        7
  MONTH TO DATE   67                        68     -1      107
  SINCE SEP 1     67                        68     -1      107
  SINCE JAN 1    702                       765    -63     1020
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   9   RESULTANT WIND DIRECTION   S (180)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED     9.2



WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


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


THE CHICAGO EXECUTIVE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   72        90      2010
 MINIMUM TEMPERATURE (F)   52        40      2006


SUNRISE AND SUNSET
SEPTEMBER 21 2017.....SUNRISE   638 AM CDT   SUNSET   650 PM CDT
SEPTEMBER 22 2017.....SUNRISE   639 AM CDT   SUNSET   648 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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