Climatological Report (Daily)
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CDUS43 KLOT 280633
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT WED JUN 28 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JUNE 27 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    420 PM 101    1971  83     -5       90
  MINIMUM         50    431 AM  47    1992  62    -12       69
  AVERAGE         64                        72     -8       80

PRECIPITATION (IN)
  YESTERDAY        0.00          1.68 1983   0.11  -0.11     0.00
  MONTH TO DATE    2.12                      3.13  -1.01     2.85
  SINCE JUN 1      2.12                      3.13  -1.01     2.85
  SINCE JAN 1     20.23                     16.21   4.02    16.49

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     26.1                      36.3  -10.2     31.2
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        1                         0      1        0
  MONTH TO DATE    3                        48    -45       12
  SINCE JUN 1      3                        48    -45       12
  SINCE JUL 1   5287                      6340  -1053     5427

 COOLING
  YESTERDAY        0                         8     -8       15
  MONTH TO DATE  208                       140     68      210
  SINCE JUN 1    208                       140     68      210
  SINCE JAN 1    241                       194     47      284
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     N (340)
  AVERAGE WIND SPEED     6.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    83           500 AM
 LOWEST     31           100 PM
 AVERAGE    57

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83       101      1971
                                             1952
 MINIMUM TEMPERATURE (F)   62        44      1992


SUNRISE AND SUNSET
JUNE 28 2017..........SUNRISE   519 AM CDT   SUNSET   831 PM CDT
JUNE 29 2017..........SUNRISE   519 AM CDT   SUNSET   831 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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