Climatological Report (Daily)
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000
CDUS43 KLOT 150635
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1235 AM CST THU FEB 15 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 14 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         44    309 PM  62    1954  35      9       50
  MINIMUM         24    642 AM -11    1905  20      4       31
  AVERAGE         34                        27      7       41

PRECIPITATION (IN)
  YESTERDAY        T             0.94 1950   0.06  -0.06     0.00
  MONTH TO DATE    1.62                      0.78   0.84     0.47
  SINCE DEC 1      3.75                      4.76  -1.01     5.11
  SINCE JAN 1      3.16                      2.51   0.65     3.34

SNOWFALL (IN)
  YESTERDAY        0.0           8.3  1990   0.3   -0.3      0.0
  MONTH TO DATE   18.3                       4.9   13.4       T
  SINCE DEC 1     28.2                      23.9    4.3     18.3
  SINCE JUL 1     28.3                      25.3    3.0     18.3
  SNOW DEPTH      10

DEGREE DAYS
 HEATING
  YESTERDAY       31                        38     -7       24
  MONTH TO DATE  648                       551     97      476
  SINCE DEC 1   3058                      2985     73     2824
  SINCE JUL 1   4101                      4241   -140     3653

 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    16   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     9.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           800 PM
 LOWEST     65          1200 PM
 AVERAGE    83

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   35        69      1954
 MINIMUM TEMPERATURE (F)   20        -9      1905
                                             1875


SUNRISE AND SUNSET
FEBRUARY 15 2018......SUNRISE   647 AM CST   SUNSET   525 PM CST
FEBRUARY 16 2018......SUNRISE   646 AM CST   SUNSET   526 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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