Climatological Report (Daily)
Issued by NWS

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
CDUS43 KLOT 112140
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
440 PM CDT FRI AUG 11 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR AUGUST 11 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         78    201 PM  98    1941  82     -4       92
                                      1874
  MINIMUM         66    453 AM  47    1982  64      2       73
  AVERAGE         72                        73     -1       83

PRECIPITATION (IN)
  TODAY            0.00          3.70 1923   0.17  -0.17     0.00
  MONTH TO DATE    1.83                      1.78   0.05     0.02
  SINCE JUN 1     12.95                      8.93   4.02     9.10
  SINCE JAN 1     31.06                     22.01   9.05    22.74

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 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    3                         0      3        0
  SINCE JUN 1      6                        52    -46       13
  SINCE JUL 1      3                         4     -1        0

 COOLING
  TODAY            7                         8     -1       18
  MONTH TO DATE   74                        95    -21      143
  SINCE JUN 1    610                       543     67      691
  SINCE JAN 1    643                       597     46      765
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED     8.4


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           400 AM
 LOWEST     50          1200 PM
 AVERAGE    69

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   82       101      1918
 MINIMUM TEMPERATURE (F)   64        47      1982


SUNRISE AND SUNSET
AUGUST 11 2017........SUNRISE   556 AM CDT   SUNSET   757 PM CDT
AUGUST 12 2017........SUNRISE   557 AM CDT   SUNSET   756 PM CDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




$$





USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.