Climatological Report (Daily)
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000
CDUS43 KLOT 052135
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CDT TUE SEP 5 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR SEPTEMBER 5 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         70    235 PM  98    1899  79     -9       87
  MINIMUM         54    535 AM  44    1988  59     -5       62
                                      1984
  AVERAGE         62                        69     -7       75

PRECIPITATION (IN)
  TODAY            0.00          1.89 1971   0.11  -0.11     0.00
  MONTH TO DATE    0.25                      0.58  -0.33      T
  SINCE SEP 1      0.25                      0.58  -0.33      T
  SINCE JAN 1     31.99                     25.71   6.28    26.98

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

DEGREE DAYS
 HEATING
  TODAY            3                         1      2        0
  MONTH TO DATE   10                         5      5        0
  SINCE SEP 1     10                         5      5        0
  SINCE JUL 1     15                        18     -3        0

 COOLING
  TODAY            0                         5     -5       10
  MONTH TO DATE   13                        27    -14       22
  SINCE SEP 1     13                        27    -14       22
  SINCE JAN 1    796                       767     29      987
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED    13.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    77           400 AM
 LOWEST     40          1200 PM
 AVERAGE    59

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   78        97      1960
                                             1954
 MINIMUM TEMPERATURE (F)   59        42      1984


SUNRISE AND SUNSET
SEPTEMBER  5 2017.....SUNRISE   622 AM CDT   SUNSET   718 PM CDT
SEPTEMBER  6 2017.....SUNRISE   623 AM CDT   SUNSET   716 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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