Climatological Report (Daily)
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CDUS43 KLOT 042237
CLIORD


CLIMATE REPORT *SNOWFALL THROUGH 12 PM CST*
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CST SUN FEB 4 2018


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR FEBRUARY 4 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         35    236 AM  59    1890  32      3       33
  MINIMUM         14    322 PM -14    1996  17     -3       10
  AVERAGE         25                        25      0       22

PRECIPITATION (IN)
  TODAY            0.12          1.26 1924   0.05   0.07     0.00
  MONTH TO DATE    0.15                      0.20  -0.05      T
  SINCE DEC 1      2.28                      4.18  -1.90     4.64
  SINCE JAN 1      1.69                      1.93  -0.24     2.87

SNOWFALL (IN)
  TODAY            0.9*          4.3  1932   0.3    0.6      0.0
  MONTH TO DATE    1.7                       1.4    0.3       T
  SINCE DEC 1     11.6                      20.4   -8.8     18.3
  SINCE JUL 1     11.7                      21.8  -10.1     18.3

DEGREE DAYS
 HEATING
  TODAY           40                        40      0       43
  MONTH TO DATE  167                       161      6      168
  SINCE DEC 1   2577                      2595    -18     2516
  SINCE JUL 1   3620                      3851   -231     3345

 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    24   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION     N (350)
  AVERAGE WIND SPEED    13.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT SNOW
  FOG
  BLOWING SNOW


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85          1200 AM
 LOWEST     69           200 AM
 AVERAGE    77

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   32        56      1946
 MINIMUM TEMPERATURE (F)   18       -17      1979


SUNRISE AND SUNSET
FEBRUARY  4 2018......SUNRISE   701 AM CST   SUNSET   511 PM CST
FEBRUARY  5 2018......SUNRISE   700 AM CST   SUNSET   512 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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