Climatological Report (Daily)
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000
CDUS43 KLOT 271235
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1239 AM CST SAT JAN 27 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 26 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         51    546 PM  62    1944  31     20       34
  MINIMUM         33    154 AM -16    1897  16     17       30
  AVERAGE         42                        24     18       32

PRECIPITATION (IN)
  YESTERDAY        0.00          1.66 1967   0.05  -0.05      T
  MONTH TO DATE    1.53                      1.48   0.05     2.83
  SINCE DEC 1      2.12                      3.73  -1.61     4.60
  SINCE JAN 1      1.53                      1.48   0.05     2.83

SNOWFALL (IN)
  YESTERDAY        0.0          16.4  1967   0.4   -0.4       T
  MONTH TO DATE    4.6                       9.0   -4.4      0.4
  SINCE DEC 1      9.9                      17.2   -7.3     18.1
  SINCE JUL 1     10.0                      18.6   -8.6     18.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       23                        41    -18       33
  MONTH TO DATE 1081                      1074      7      935
  SINCE DEC 1   2246                      2229     17     2166
  SINCE JUL 1   3289                      3485   -196     2995

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    32   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    41   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED    18.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           100 AM
 LOWEST     46          1200 PM
 AVERAGE    68

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        62      1916
 MINIMUM TEMPERATURE (F)   16       -10      1955


SUNRISE AND SUNSET
JANUARY 27 2018.......SUNRISE   709 AM CST   SUNSET   500 PM CST
JANUARY 28 2018.......SUNRISE   708 AM CST   SUNSET   502 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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