Climatological Report (Daily)
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CDUS43 KLOT 262137
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
432 PM CDT TUE SEP 26 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR SEPTEMBER 26 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         92R   138 PM  90    1998  71     21       69
  MINIMUM         70    532 AM  35    1928  50     20       56
  AVERAGE         81                        60     21       63

PRECIPITATION (IN)
  TODAY            0.00          2.71 1933   0.11  -0.11      T
  MONTH TO DATE    0.32                      2.83  -2.51     1.15
  SINCE SEP 1      0.32                      2.83  -2.51     1.15
  SINCE JAN 1     32.06                     27.96   4.10    28.13

SNOWFALL (IN)
  TODAY            0.0           0.0    MM   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE SEP 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      T                         0.0    0.0      0.0

DEGREE DAYS
 HEATING
  TODAY            0                         6     -6        2
  MONTH TO DATE   29                        77    -48        3
  SINCE SEP 1     29                        77    -48        3
  SINCE JUL 1     34                        90    -56        3

 COOLING
  TODAY           16                         1     15        0
  MONTH TO DATE  179                        88     91      165
  SINCE SEP 1    179                        88     91      165
  SINCE JAN 1    962                       828    134     1130
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    SW (240)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     7.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    68           700 AM
 LOWEST     34           100 PM
 AVERAGE    51

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   70        91      1971
 MINIMUM TEMPERATURE (F)   49        31      1942


SUNRISE AND SUNSET
SEPTEMBER 26 2017.....SUNRISE   644 AM CDT   SUNSET   641 PM CDT
SEPTEMBER 27 2017.....SUNRISE   645 AM CDT   SUNSET   640 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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