Climatological Report (Daily)
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000
CDUS43 KLOT 170637
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
137 AM CDT MON JUL 17 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 16 2017...

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)
 YESTERDAY
  MAXIMUM         78    314 AM 100    1887  84     -6       77
  MINIMUM         60   1153 PM  49    1945  64     -4       57
  AVERAGE         69                        74     -5       67

PRECIPITATION (IN)
  YESTERDAY        T             2.48 1950   0.12  -0.12     0.00
  MONTH TO DATE    3.10                      1.77   1.33     2.12
  SINCE JUN 1      6.54                      5.22   1.32     4.97
  SINCE JAN 1     24.65                     18.30   6.35    18.61

SNOWFALL (IN)
  YESTERDAY        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
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        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
  YESTERDAY        4                         9     -5        2
  MONTH TO DATE  152                       143      9      132
  SINCE JUN 1    382                       308     74      348
  SINCE JAN 1    415                       362     53      422
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    29   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    37   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED    11.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84          1000 PM
 LOWEST     61           400 PM
 AVERAGE    73

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84       100      1942
                                             1887
 MINIMUM TEMPERATURE (F)   64        51      1985


SUNRISE AND SUNSET
JULY 17 2017..........SUNRISE   531 AM CDT   SUNSET   824 PM CDT
JULY 18 2017..........SUNRISE   532 AM CDT   SUNSET   823 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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