Climatological Report (Daily)
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CDUS43 KLOT 220637
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT TUE MAY 22 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 21 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         64    516 PM  92    1977  72     -8       65
                                      1934
  MINIMUM         49    613 AM  31    2002  50     -1       51
  AVERAGE         57                        61     -4       58

PRECIPITATION (IN)
  YESTERDAY        1.96R         1.16 1974   0.13   1.83     0.05
  MONTH TO DATE    7.31                      2.49   4.82     2.24
  SINCE MAR 1     11.77                      8.37   3.40    12.68
  SINCE JAN 1     17.95                     11.89   6.06    17.07

SNOWFALL (IN)
  YESTERDAY        0.0           T    2004   0.0    0.0      0.0
                                      1969
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE MAR 1      5.8                       6.8   -1.0      7.8
  SINCE JUL 1     36.1                      36.3   -0.2     26.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        8                         6      2        7
  MONTH TO DATE  101                       176    -75      208
  SINCE MAR 1   1673                      1509    164     1332
  SINCE JUL 1   6131                      6243   -112     5257

 COOLING
  YESTERDAY        0                         2     -2        0
  MONTH TO DATE   37                        22     15       18
  SINCE MAR 1     37                        32      5       30
  SINCE JAN 1     37                        32      5       30
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     6.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           800 AM
 LOWEST     74           300 AM
 AVERAGE    84

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   72        94      1925
 MINIMUM TEMPERATURE (F)   50        36      2006


SUNRISE AND SUNSET
MAY 22 2018...........SUNRISE   525 AM CDT   SUNSET   812 PM CDT
MAY 23 2018...........SUNRISE   524 AM CDT   SUNSET   813 PM CDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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