Climatological Report (Daily)
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CDUS43 KLOT 070636
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
135 AM CDT MON AUG 7 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 6 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         77    359 PM 101    1947  83     -6       84
                                      1918
  MINIMUM         63    337 AM  48    1994  64     -1       66
  AVERAGE         70                        73     -3       75

PRECIPITATION (IN)
  YESTERDAY        0.00          2.17 1951   0.16  -0.16     0.00
  MONTH TO DATE    1.80                      0.97   0.83     0.02
  SINCE JUN 1     12.92                      8.12   4.80     9.10
  SINCE JAN 1     31.03                     21.20   9.83    22.74

SNOWFALL (IN)
  YESTERDAY        0.0           0.0    MM   0.0    0.0      0.0
  MONTH TO DATE    0.0                       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    3                         0      3        0
  SINCE JUN 1      6                        52    -46       13
  SINCE JUL 1      3                         4     -1        0

 COOLING
  YESTERDAY        5                         9     -4       10
  MONTH TO DATE   42                        54    -12       77
  SINCE JUN 1    578                       502     76      625
  SINCE JAN 1    611                       556     55      699
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     S (170)
  AVERAGE WIND SPEED     4.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84           500 AM
 LOWEST     43           400 PM
 AVERAGE    64

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83        99      1918
 MINIMUM TEMPERATURE (F)   64        50      1994
                                             1990


SUNRISE AND SUNSET
AUGUST  7 2017........SUNRISE   552 AM CDT   SUNSET   802 PM CDT
AUGUST  8 2017........SUNRISE   553 AM CDT   SUNSET   801 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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