Climatological Report (Daily)
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CDUS43 KLOT 190638
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1236 AM CST MON FEB 19 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR FEBRUARY 18 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         41   1133 PM  70    2017  36      5       70
  MINIMUM         12    601 AM -14    1936  21     -9       40
  AVERAGE         27                        28     -1       55

PRECIPITATION (IN)
  YESTERDAY        0.02          1.15 1908   0.07  -0.05     0.00
  MONTH TO DATE    1.75                      1.04   0.71     0.47
  SINCE DEC 1      3.88                      5.02  -1.14     5.11
  SINCE JAN 1      3.29                      2.77   0.52     3.34

SNOWFALL (IN)
  YESTERDAY        0.0          11.5  1908   0.3   -0.3      0.0
  MONTH TO DATE   20.3                       6.2   14.1       T
  SINCE DEC 1     30.2                      25.2    5.0     18.3
  SINCE JUL 1     30.3                      26.6    3.7     18.3
  SNOW DEPTH       2

DEGREE DAYS
 HEATING
  YESTERDAY       38                        36      2       10
  MONTH TO DATE  783                       698     85      567
  SINCE DEC 1   3193                      3132     61     2915
  SINCE JUL 1   4236                      4388   -152     3744

 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    21   HIGHEST WIND DIRECTION    SE (150)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED    10.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           400 AM
 LOWEST     64           300 PM
 AVERAGE    78

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   37        69      2017
 MINIMUM TEMPERATURE (F)   21        -8      2015


SUNRISE AND SUNSET
FEBRUARY 19 2018......SUNRISE   642 AM CST   SUNSET   530 PM CST
FEBRUARY 20 2018......SUNRISE   640 AM CST   SUNSET   531 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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