Climatological Report (Daily)
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CDUS43 KLOT 220635
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1234 AM CST THU FEB 22 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 21 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         34   1251 AM  67    1930  37     -3       66
  MINIMUM         27    846 AM -11    1873  22      5       49
  AVERAGE         31                        30      1       58

PRECIPITATION (IN)
  YESTERDAY        0.04          3.44 1997   0.07  -0.03     0.04
  MONTH TO DATE    4.41                      1.25   3.16     0.51
  SINCE DEC 1      6.54                      5.23   1.31     5.15
  SINCE JAN 1      5.95                      2.98   2.97     3.38

SNOWFALL (IN)
  YESTERDAY        T             4.4  1960   0.3   -0.3      0.0
  MONTH TO DATE   20.3                       7.1   13.2       T
  SINCE DEC 1     30.2                      26.1    4.1     18.3
  SINCE JUL 1     30.3                      27.5    2.8     18.3
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       34                        35     -1        7
  MONTH TO DATE  848                       805     43      596
  SINCE DEC 1   3258                      3239     19     2944
  SINCE JUL 1   4301                      4495   -194     3773

 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    NW (330)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    10.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  SLEET


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89          1200 AM
 LOWEST     54           100 PM
 AVERAGE    72

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   38        68      2017
                                             1922
 MINIMUM TEMPERATURE (F)   22       -14      1873


SUNRISE AND SUNSET
FEBRUARY 22 2018......SUNRISE   637 AM CST   SUNSET   533 PM CST
FEBRUARY 23 2018......SUNRISE   636 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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