Climatological Report (Daily)
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CDUS43 KLOT 220633
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1232 AM CST WED FEB 22 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 21 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         66    405 PM  67    1930  37     29       41
  MINIMUM         49   1114 PM -11    1873  22     27       29
  AVERAGE         58                        30     28       35

PRECIPITATION (IN)
  YESTERDAY        0.04          3.44 1997   0.07  -0.03     0.00
  MONTH TO DATE    0.51                      1.25  -0.74     1.00
  SINCE DEC 1      5.15                      5.23  -0.08     6.71
  SINCE JAN 1      3.38                      2.98   0.40     1.84

SNOWFALL (IN)
  YESTERDAY        0.0           4.4  1960   0.3   -0.3      0.0
  MONTH TO DATE    T                         7.1   -7.1      3.8
  SINCE DEC 1     18.3                      26.1   -7.8     14.6
  SINCE JUL 1     18.3                      27.5   -9.2     25.8
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        7                        35    -28       30
  MONTH TO DATE  596                       805   -209      774
  SINCE DEC 1   2944                      3239   -295     2813
  SINCE JUL 1   3773                      4495   -722     3786

 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    18   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     6.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          1100 PM
 LOWEST     60          1200 AM
 AVERAGE    77

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   38        68      1922
 MINIMUM TEMPERATURE (F)   22       -14      1873


SUNRISE AND SUNSET
FEBRUARY 22 2017......SUNRISE   637 AM CST   SUNSET   534 PM CST
FEBRUARY 23 2017......SUNRISE   635 AM CST   SUNSET   535 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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