Climatological Report (Daily)
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928
CDUS43 KLOT 100650
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1250 AM CST FRI FEB 10 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 9 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         25    311 PM  56    1886  33     -8       21
  MINIMUM         13    746 AM -21    1899  18     -5       13
  AVERAGE         19                        26     -7       17

PRECIPITATION (IN)
  YESTERDAY        0.00          1.56 1876   0.06  -0.06     0.02
  MONTH TO DATE    0.47                      0.47   0.00     0.85
  SINCE DEC 1      5.11                      4.45   0.66     6.56
  SINCE JAN 1      3.34                      2.20   1.14     1.69

SNOWFALL (IN)
  YESTERDAY        0.0          12.6  2010   0.4   -0.4      0.6
  MONTH TO DATE    T                         3.2   -3.2      1.0
  SINCE DEC 1     18.3                      22.2   -3.9     11.8
  SINCE JUL 1     18.3                      23.6   -5.3     23.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       46                        39      7       48
  MONTH TO DATE  338                       359    -21      309
  SINCE DEC 1   2686                      2793   -107     2348
  SINCE JUL 1   3515                      4049   -534     3321

 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    21   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    11.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    67           800 PM
 LOWEST     39           200 PM
 AVERAGE    53

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   34        63      1876
 MINIMUM TEMPERATURE (F)   19       -18      1899


SUNRISE AND SUNSET
FEBRUARY 10 2017......SUNRISE   654 AM CST   SUNSET   518 PM CST
FEBRUARY 11 2017......SUNRISE   652 AM CST   SUNSET   520 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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