Climatological Report (Daily)
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566
CDUS43 KLOT 112237
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CST SUN FEB 11 2018


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR FEBRUARY 11 2018...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         22    357 PM  70    1999  34    -12       49
  MINIMUM         17    629 AM -14    1885  19     -2       34
  AVERAGE         20                        26     -6       42

PRECIPITATION (IN)
  TODAY            0.39          0.83 2009   0.06   0.33     0.00
  MONTH TO DATE    1.62                      0.59   1.03     0.47
  SINCE DEC 1      3.75                      4.57  -0.82     5.11
  SINCE JAN 1      3.16                      2.32   0.84     3.34

SNOWFALL (IN)
  TODAY            3.7           8.3  1956   0.4    3.3      0.0
  MONTH TO DATE   18.3                       3.9   14.4       T
  SINCE DEC 1     28.2                      22.9    5.3     18.3
  SINCE JUL 1     28.3                      24.3    4.0     18.3

DEGREE DAYS
 HEATING
  TODAY           45                        39      6       23
  MONTH TO DATE  521                       437     84      396
  SINCE DEC 1   2931                      2871     60     2744
  SINCE JUL 1   3974                      4127   -153     3573

 COOLING
  TODAY            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    16   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION     N (340)
  AVERAGE WIND SPEED    10.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  HEAVY SNOW
  SNOW
  LIGHT SNOW
  FOG
  FOG W/VISIBILITY <= 1/4 MILE
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84           100 AM
 LOWEST     62           400 PM
 AVERAGE    73

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   34        62      1984
                                             1882
 MINIMUM TEMPERATURE (F)   19       -17      1899


SUNRISE AND SUNSET
FEBRUARY 11 2018......SUNRISE   653 AM CST   SUNSET   520 PM CST
FEBRUARY 12 2018......SUNRISE   651 AM CST   SUNSET   521 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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