Climatological Report (Daily)
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000
CDUS43 KLOT 212150
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
450 PM CDT FRI JUL 21 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR JULY 21 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         89    222 PM 103    1901  84      5       91
  MINIMUM         73   1234 AM  51    1970  64      9       72
  AVERAGE         81                        74      7       82

PRECIPITATION (IN)
  TODAY            0.00          1.78 1999   0.13  -0.13     1.03
  MONTH TO DATE    5.35                      2.36   2.99     3.40
  SINCE JUN 1      8.79                      5.81   2.98     6.25
  SINCE JAN 1     26.90                     18.89   8.01    19.89

SNOWFALL (IN)
  TODAY            0.0           0.0    MM   0.0    0.0      0.0
  MONTH TO DATE    T                         0.0    0.0      0.0
  SINCE JUN 1      T                         0.0    0.0      0.0
  SINCE JUL 1      T                         0.0    0.0      0.0

DEGREE DAYS
 HEATING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE JUN 1      3                        48    -45       13
  SINCE JUL 1      0                         0      0        0

 COOLING
  TODAY           16                         9      7       17
  MONTH TO DATE  209                       188     21      200
  SINCE JUN 1    439                       353     86      416
  SINCE JAN 1    472                       407     65      490
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     6.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87           100 AM
 LOWEST     55           200 PM
 AVERAGE    71

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84       101      1991
                                             1934
 MINIMUM TEMPERATURE (F)   64        49      1947


SUNRISE AND SUNSET
JULY 21 2017..........SUNRISE   535 AM CDT   SUNSET   821 PM CDT
JULY 22 2017..........SUNRISE   536 AM CDT   SUNSET   820 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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