Climatological Report (Daily)
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851
CDUS43 KLOT 160634
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1233 AM CST FRI FEB 16 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 15 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         48    335 PM  69    1954  35     13       35
  MINIMUM         38   1159 PM  -9    1905  20     18       26
                                      1875
  AVERAGE         43                        28     15       31

PRECIPITATION (IN)
  YESTERDAY        T             0.78 1954   0.06  -0.06     0.00
  MONTH TO DATE    1.62                      0.84   0.78     0.47
  SINCE DEC 1      3.75                      4.82  -1.07     5.11
  SINCE JAN 1      3.16                      2.57   0.59     3.34

SNOWFALL (IN)
  YESTERDAY        0.0           5.2  1903   0.3   -0.3      0.0
                                      1973
  MONTH TO DATE   18.3                       5.2   13.1       T
  SINCE DEC 1     28.2                      24.2    4.0     18.3
  SINCE JUL 1     28.3                      25.6    2.7     18.3
  SNOW DEPTH       4

DEGREE DAYS
 HEATING
  YESTERDAY       22                        37    -15       34
  MONTH TO DATE  670                       588     82      510
  SINCE DEC 1   3080                      3022     58     2858
  SINCE JUL 1   4123                      4278   -155     3687

 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    15   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     N (350)
  AVERAGE WIND SPEED     6.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG
  FOG W/VISIBILITY <= 1/4 MILE
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           100 AM
 LOWEST     70           600 PM
 AVERAGE    85

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   36        58      1921
 MINIMUM TEMPERATURE (F)   20       -10      1885


SUNRISE AND SUNSET
FEBRUARY 16 2018......SUNRISE   646 AM CST   SUNSET   526 PM CST
FEBRUARY 17 2018......SUNRISE   645 AM CST   SUNSET   527 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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