Climatological Report (Daily)
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000
CDUS43 KLOT 130635
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1235 AM CST TUE FEB 13 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 12 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         27    258 PM  62    1984  34     -7       47
                                      1882
  MINIMUM          4    913 PM -17    1899  19    -15       31
  AVERAGE         16                        27    -11       39

PRECIPITATION (IN)
  YESTERDAY        0.00          1.13 1884   0.06  -0.06      T
  MONTH TO DATE    1.62                      0.65   0.97     0.47
  SINCE DEC 1      3.75                      4.63  -0.88     5.11
  SINCE JAN 1      3.16                      2.38   0.78     3.34

SNOWFALL (IN)
  YESTERDAY        0.0           7.9  1894   0.3   -0.3      0.0
  MONTH TO DATE   18.3                       4.2   14.1       T
  SINCE DEC 1     28.2                      23.2    5.0     18.3
  SINCE JUL 1     28.3                      24.6    3.7     18.3
  SNOW DEPTH      12

DEGREE DAYS
 HEATING
  YESTERDAY       49                        38     11       26
  MONTH TO DATE  573                       475     98      422
  SINCE DEC 1   2983                      2909     74     2770
  SINCE JUL 1   4026                      4165   -139     3599

 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    13   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION     N (340)
  AVERAGE WIND SPEED     6.3


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    83           600 AM
 LOWEST     33           300 PM
 AVERAGE    58

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   35        63      1938
 MINIMUM TEMPERATURE (F)   19       -18      1905


SUNRISE AND SUNSET
FEBRUARY 13 2018......SUNRISE   650 AM CST   SUNSET   522 PM CST
FEBRUARY 14 2018......SUNRISE   649 AM CST   SUNSET   523 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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