Climatological Report (Daily)
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CDUS43 KLOT 202231
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
430 PM CST MON NOV 20 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR NOVEMBER 20 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         52    359 PM  68    1930  46      6       35
                                      1913
  MINIMUM         30   1210 AM   8    1873  31     -1       23
  AVERAGE         41                        38      3       29

PRECIPITATION (IN)
  TODAY            0.00          1.23 1970   0.11  -0.11     0.00
  MONTH TO DATE    1.73                      2.10  -0.37     0.42
  SINCE SEP 1     10.75                      8.46   2.29     5.95
  SINCE JAN 1     42.49                     33.59   8.90    32.93

SNOWFALL (IN)
  TODAY            0.0           4.2  2015   0.1   -0.1      0.0
  MONTH TO DATE    0.1                       0.4   -0.3       T
  SINCE SEP 1      0.1                       0.6   -0.5       T
  SINCE JUL 1      0.1                       0.6   -0.5       T

DEGREE DAYS
 HEATING
  TODAY           24                        27     -3       36
  MONTH TO DATE  518                       444     74      287
  SINCE SEP 1    806                       946   -140      576
  SINCE JUL 1    811                       959   -148      576

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        3
  SINCE SEP 1    208                       103    105      192
  SINCE JAN 1    991                       843    148     1157
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED    15.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    69          1200 AM
 LOWEST     46           100 PM
 AVERAGE    58

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   45        72      1913
 MINIMUM TEMPERATURE (F)   30         1      1880


SUNRISE AND SUNSET
NOVEMBER 20 2017......SUNRISE   648 AM CST   SUNSET   426 PM CST
NOVEMBER 21 2017......SUNRISE   649 AM CST   SUNSET   426 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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