Climatological Report (Daily)
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000
CDUS43 KLOT 140633
CLIMDW


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1231 AM CST THU DEC 14 2017


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

...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR DECEMBER 13 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1928 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         38    229 PM  67    1975  36      2       25
  MINIMUM         22    121 AM  -3    2000  23     -1        5
                                      1958
  AVERAGE         30                        29      1       15

PRECIPITATION (IN)
  YESTERDAY        T             1.24 1928   0.08  -0.08      T
  MONTH TO DATE    0.05                      1.20  -1.15     0.86
  SINCE DEC 1      0.05                      1.20  -1.15     0.86
  SINCE JAN 1     41.33                     37.72   3.61    32.22

DEGREE DAYS
 HEATING
  YESTERDAY       35                        36     -1       50
  MONTH TO DATE  395                       435    -40      469
  SINCE DEC 1    395                       435    -40      469
  SINCE JUL 1   1378                      1570   -192     1181

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1   1151                      1045    106     1465
..................................................................


WIND (MPH)
  RESULTANT WIND SPEED   6   RESULTANT WIND DIRECTION  SW (210)
  HIGHEST WIND SPEED    32   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    41   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED    15.7



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


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


THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   35        66      1975
 MINIMUM TEMPERATURE (F)   23        -4      1985


SUNRISE AND SUNSET
DECEMBER 14 2017......SUNRISE   711 AM CST   SUNSET   421 PM CST
DECEMBER 15 2017......SUNRISE   711 AM CST   SUNSET   421 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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