Climatological Report (Daily)
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000
CDUS43 KLOT 212239
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
438 PM CST TUE FEB 21 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR FEBRUARY 21 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         66    359 PM  67    1930  37     29       41
  MINIMUM         54    524 AM -11    1873  22     32       29
  AVERAGE         60                        30     30       35

PRECIPITATION (IN)
  TODAY            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)
  TODAY            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

DEGREE DAYS
 HEATING
  TODAY            5                        35    -30       30
  MONTH TO DATE  594                       805   -211      774
  SINCE DEC 1   2942                      3239   -297     2813
  SINCE JUL 1   3771                      4495   -724     3786

 COOLING
  TODAY            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     8.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           600 AM
 LOWEST     60          1200 AM
 AVERAGE    73

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


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


SUNRISE AND SUNSET
FEBRUARY 21 2017......SUNRISE   638 AM CST   SUNSET   532 PM CST
FEBRUARY 22 2017......SUNRISE   637 AM CST   SUNSET   534 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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