Climatological Report (Daily)
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000
CDUS43 KLOT 040632
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1231 AM CST SAT FEB 4 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 3 2017...

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)
 YESTERDAY
  MAXIMUM         28    359 PM  59    1992  32     -4       37
  MINIMUM         14    721 AM -19    1996  17     -3       28
  AVERAGE         21                        25     -4       33

PRECIPITATION (IN)
  YESTERDAY        0.00          1.52 1896   0.05  -0.05     0.02
  MONTH TO DATE    T                         0.15  -0.15     0.81
  SINCE DEC 1      4.64                      4.13   0.51     6.52
  SINCE JAN 1      2.87                      1.88   0.99     1.65

SNOWFALL (IN)
  YESTERDAY        0.0          11.0  1896   0.4   -0.4       T
  MONTH TO DATE    T                         1.1   -1.1       T
  SINCE DEC 1     18.3                      20.1   -1.8     10.8
  SINCE JUL 1     18.3                      21.5   -3.2     22.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       44                        40      4       32
  MONTH TO DATE  125                       121      4       89
  SINCE DEC 1   2473                      2555    -82     2128
  SINCE JUL 1   3302                      3811   -509     3101

 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    20   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED    10.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    67           100 AM
 LOWEST     31           400 PM
 AVERAGE    49

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   32        59      1890
 MINIMUM TEMPERATURE (F)   17       -14      1996


SUNRISE AND SUNSET
FEBRUARY  4 2017......SUNRISE   701 AM CST   SUNSET   511 PM CST
FEBRUARY  5 2017......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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