Climatological Report (Daily)
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000
CDUS43 KLOT 182135
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT MON MAY 18 2015


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR MAY 18 2015...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         77   1214 PM  93    1962  71      6       69
  MINIMUM         67    557 AM  34    2002  49     18       47
  AVERAGE         72                        60     12       58

PRECIPITATION (IN)
  TODAY            0.00          1.36 1926   0.13  -0.13     0.00
  MONTH TO DATE    3.08                      2.12   0.96     3.91
  SINCE MAR 1      7.05                      8.00  -0.95     8.46
  SINCE JAN 1      9.91                     11.52  -1.61    13.76

SNOWFALL (IN)
  TODAY            0.0           T    1894   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE MAR 1      7.1                       6.8    0.3     13.7
  SINCE JUL 1     50.7                      36.6   14.1     82.0

DEGREE DAYS
 HEATING
  TODAY            0                         7     -7        7
  MONTH TO DATE  105                       158    -53      173
  SINCE MAR 1   1475                      1491    -16     1686
  SINCE JUL 1   6655                      6225    430     7101

 COOLING
  TODAY            7                         1      6        0
  MONTH TO DATE   36                        16     20       16
  SINCE MAR 1     36                        26     10       17
  SINCE JAN 1     36                        26     10       17
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED    14.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87           400 AM
 LOWEST     41           200 PM
 AVERAGE    64

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   71        94      1977
                                             1975
 MINIMUM TEMPERATURE (F)   49        36      1993
                                             1894


SUNRISE AND SUNSET
MAY 18 2015...........SUNRISE   529 AM CDT   SUNSET   808 PM CDT
MAY 19 2015...........SUNRISE   528 AM CDT   SUNSET   809 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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