Climatological Report (Daily)
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CDUS43 KLOT 152144
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
442 PM CDT MON MAY 15 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR MAY 15 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         82    248 PM  91    1962  70     12       55
  MINIMUM         50    519 AM  35    2016  48      2       35
                                      1895
  AVERAGE         66                        59      7       45

PRECIPITATION (IN)
  TODAY            0.00          2.31 1915   0.12  -0.12     0.00
  MONTH TO DATE    1.23                      1.75  -0.52     3.66
  SINCE MAR 1     11.67                      7.63   4.04     9.80
  SINCE JAN 1     16.06                     11.15   4.91    11.87

SNOWFALL (IN)
  TODAY            0.0           0.0    MM   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE MAR 1      7.8                       6.8    1.0      3.7
  SINCE JUL 1     26.1                      36.3  -10.2     31.2

DEGREE DAYS
 HEATING
  TODAY            0                         7     -7       20
  MONTH TO DATE  172                       137     35      171
  SINCE MAR 1   1296                      1470   -174     1353
  SINCE JUL 1   5221                      6204   -983     5361

 COOLING
  TODAY            1                         1      0        0
  MONTH TO DATE    1                        13    -12        0
  SINCE MAR 1     13                        23    -10        7
  SINCE JAN 1     13                        23    -10        7
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     E (100)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     E (100)
  AVERAGE WIND SPEED     7.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    71           500 AM
 LOWEST     39           100 PM
 AVERAGE    55

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   70        94      1962
 MINIMUM TEMPERATURE (F)   48        33      1997


SUNRISE AND SUNSET
MAY 15 2017...........SUNRISE   531 AM CDT   SUNSET   806 PM CDT
MAY 16 2017...........SUNRISE   530 AM CDT   SUNSET   807 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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