Climatological Report (Daily)
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263
CDUS43 KLOT 140635
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1235 AM CST WED FEB 14 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 13 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         35    324 PM  63    1938  35      0       44
  MINIMUM          7    236 AM -18    1905  19    -12       25
  AVERAGE         21                        27     -6       35

PRECIPITATION (IN)
  YESTERDAY        0.00          0.78 1949   0.07  -0.07     0.00
  MONTH TO DATE    1.62                      0.72   0.90     0.47
  SINCE DEC 1      3.75                      4.70  -0.95     5.11
  SINCE JAN 1      3.16                      2.45   0.71     3.34

SNOWFALL (IN)
  YESTERDAY        0.0           8.8  2007   0.4   -0.4      0.0
  MONTH TO DATE   18.3                       4.6   13.7       T
  SINCE DEC 1     28.2                      23.6    4.6     18.3
  SINCE JUL 1     28.3                      25.0    3.3     18.3
  SNOW DEPTH      11

DEGREE DAYS
 HEATING
  YESTERDAY       44                        38      6       30
  MONTH TO DATE  617                       513    104      452
  SINCE DEC 1   3027                      2947     80     2800
  SINCE JUL 1   4070                      4203   -133     3629

 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    14   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     6.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    83           500 AM
 LOWEST     38           200 PM
 AVERAGE    61

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   35        62      1954
 MINIMUM TEMPERATURE (F)   20       -11      1905


SUNRISE AND SUNSET
FEBRUARY 14 2018......SUNRISE   649 AM CST   SUNSET   523 PM CST
FEBRUARY 15 2018......SUNRISE   647 AM CST   SUNSET   525 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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