Climatological Report (Daily)
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CDUS43 KLOT 090637
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1237 AM CST FRI FEB 9 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 8 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         21   1159 PM  62    1925  33    -12       32
                                      1900
  MINIMUM          7    223 AM -17    1899  18    -11       19
  AVERAGE         14                        26    -12       26

PRECIPITATION (IN)
  YESTERDAY        0.15          1.10 1887   0.05   0.10     0.00
  MONTH TO DATE    0.61                      0.41   0.20     0.47
  SINCE DEC 1      2.74                      4.39  -1.65     5.11
  SINCE JAN 1      2.15                      2.14   0.01     3.34

SNOWFALL (IN)
  YESTERDAY        1.6           5.0  1903   0.3    1.3      0.0
  MONTH TO DATE    7.6                       2.8    4.8       T
  SINCE DEC 1     17.5                      21.8   -4.3     18.3
  SINCE JUL 1     17.6                      23.2   -5.6     18.3
  SNOW DEPTH       4

DEGREE DAYS
 HEATING
  YESTERDAY       51                        39     12       39
  MONTH TO DATE  387                       320     67      292
  SINCE DEC 1   2797                      2754     43     2640
  SINCE JUL 1   3840                      4010   -170     3469

 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    13   HIGHEST WIND DIRECTION    SW (240)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     6.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    91          1000 PM
 LOWEST     61          1100 AM
 AVERAGE    76

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   33        56      1886
 MINIMUM TEMPERATURE (F)   18       -21      1899


SUNRISE AND SUNSET
FEBRUARY  9 2018......SUNRISE   655 AM CST   SUNSET   517 PM CST
FEBRUARY 10 2018......SUNRISE   654 AM CST   SUNSET   518 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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