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594
CDUS43 KLOT 210634
CLIPWK


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1233 AM CST SUN DEC 21 2014


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

...THE CHICAGO EXECUTIVE CLIMATE SUMMARY FOR DECEMBER 20 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1996 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         33   1030 PM  49    2012  34     -1       36
  MINIMUM         28    652 AM   0    2000  20      8       33
  AVERAGE         31                        27      4       35

PRECIPITATION (IN)
  YESTERDAY        0.00          1.20 2012   0.06  -0.06     0.30
  MONTH TO DATE    0.26                      1.24  -0.98     0.54
  SINCE DEC 1      0.26                      1.24  -0.98     0.54
  SINCE JAN 1     32.37                     32.76  -0.39    28.91

DEGREE DAYS
 HEATING
  YESTERDAY       34                        38     -4       30
  MONTH TO DATE  653                       712    -59      816
  SINCE DEC 1    653                       712    -59      816
  SINCE JUL 1   2056                      1982     74     2087

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    780                       789     -9      918
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    13   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     3.7



WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HAZE


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


THE CHICAGO EXECUTIVE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   33        48      2006
                                             2003
 MINIMUM TEMPERATURE (F)   19        -6      2008
                                             2000


SUNRISE AND SUNSET
DECEMBER 21 2014......SUNRISE   717 AM CST   SUNSET   423 PM CST
DECEMBER 22 2014......SUNRISE   717 AM CST   SUNSET   423 PM CST


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




$$




528
CDUS43 KLOT 210634
CLIDPA


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1233 AM CST SUN DEC 21 2014


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

...THE DU PAGE  AIRPORT CLIMATE SUMMARY FOR DECEMBER 20 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1997 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         33    259 PM  49    2012  34     -1       35
  MINIMUM         24   1203 AM  -9    2000  18      6       30
  AVERAGE         29                        26      3       33

PRECIPITATION (IN)
  YESTERDAY        0.00          0.79        0.05  -0.05     0.16
  MONTH TO DATE    0.22                      1.20  -0.98     0.61
  SINCE DEC 1      0.22                      1.20  -0.98     0.61
  SINCE JAN 1     29.08                     36.39  -7.31    34.79

SNOWFALL (IN)
  YESTERDAY        0.0
  MONTH TO DATE    T
  SINCE JUL 1      0.9

DEGREE DAYS
 HEATING
  YESTERDAY       36                        39     -3       32
  MONTH TO DATE  676                       725    -49      859
  SINCE DEC 1    676                       725    -49      859
  SINCE JUL 1   2135                      1979    156     2295

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    767                       814    -47      745
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   3   RESULTANT WIND DIRECTION   S (180)
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     3.7



WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HAZE


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


THE DU PAGE  AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   33        51      2006
 MINIMUM TEMPERATURE (F)   17        -8      2000


SUNRISE AND SUNSET
DECEMBER 21 2014......SUNRISE   717 AM CST   SUNSET   425 PM CST
DECEMBER 22 2014......SUNRISE   718 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.




$$




592
CDUS43 KLOT 210634
CLIMDW


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1233 AM CST SUN DEC 21 2014


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

...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR DECEMBER 20 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1928 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         35    152 PM  59    1988  34      1       37
                                      1949
  MINIMUM         32    947 AM  -9    1963  21     11       34
  AVERAGE         34                        28      6       36

PRECIPITATION (IN)
  YESTERDAY        T             1.12 2012   0.08  -0.08     0.13
  MONTH TO DATE    0.26                      1.75  -1.49     0.52
  SINCE DEC 1      0.26                      1.75  -1.49     0.52
  SINCE JAN 1     41.18                     38.27   2.91    34.09

DEGREE DAYS
 HEATING
  YESTERDAY       31                        37     -6       29
  MONTH TO DATE  599                       691    -92      787
  SINCE DEC 1    599                       691    -92      787
  SINCE JUL 1   1856                      1826     30     1985

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1066                      1045     21     1091
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION   S (200)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    SW (240)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED     5.9



WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW


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


THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   34        62      1967
 MINIMUM TEMPERATURE (F)   21       -13      1989


SUNRISE AND SUNSET
DECEMBER 21 2014......SUNRISE   715 AM CST   SUNSET   423 PM CST
DECEMBER 22 2014......SUNRISE   715 AM CST   SUNSET   424 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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