Climatological Report (Daily)
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CDUS43 KLOT 110640
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
138 AM CDT FRI MAY 11 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 10 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         73    119 PM  90    2011  68      5       67
  MINIMUM         50   1159 PM  28    1983  47      3       44
  AVERAGE         62                        57      5       56

PRECIPITATION (IN)
  YESTERDAY        0.00          2.84 1951   0.12  -0.12     0.87
  MONTH TO DATE    2.14                      1.16   0.98     1.23
  SINCE MAR 1      6.60                      7.04  -0.44    11.67
  SINCE JAN 1     12.78                     10.56   2.22    16.06

SNOWFALL (IN)
  YESTERDAY        0.0           T    1945   0.0    0.0      0.0
                                      1907
                                      1902
  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        3                         9     -6        9
  MONTH TO DATE   16                        98    -82      154
  SINCE MAR 1   1588                      1431    157     1278
  SINCE JUL 1   6046                      6165   -119     5203

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE   34                         8     26        0
  SINCE MAR 1     34                        18     16       12
  SINCE JAN 1     34                        18     16       12
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION    NE (30)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     9.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86           500 AM
 LOWEST     46           100 PM
 AVERAGE    66

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        89      1982
 MINIMUM TEMPERATURE (F)   47        33      1981


SUNRISE AND SUNSET
MAY 11 2018...........SUNRISE   535 AM CDT   SUNSET   801 PM CDT
MAY 12 2018...........SUNRISE   534 AM CDT   SUNSET   802 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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