Climatological Report (Daily)
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000
CDUS43 KLOT 190706
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
206 AM CDT TUE MAY 19 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 18 2015...

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)
 YESTERDAY
  MAXIMUM         77   1214 PM  93    1962  71      6       69
  MINIMUM         49   1159 PM  34    2002  49      0       47
  AVERAGE         63                        60      3       58

PRECIPITATION (IN)
  YESTERDAY        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)
  YESTERDAY        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
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        2                         7     -5        7
  MONTH TO DATE  107                       158    -51      173
  SINCE MAR 1   1477                      1491    -14     1686
  SINCE JUL 1   6657                      6225    432     7101

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE   29                        16     13       16
  SINCE MAR 1     29                        26      3       17
  SINCE JAN 1     29                        26      3       17
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED    15.4


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    87           400 AM
 LOWEST     40           400 PM
 AVERAGE    64

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


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


SUNRISE AND SUNSET
MAY 19 2015...........SUNRISE   528 AM CDT   SUNSET   809 PM CDT
MAY 20 2015...........SUNRISE   527 AM CDT   SUNSET   810 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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