Climatological Report (Daily)
Issued by NWS

Home | Current Version | Previous Version | Text Only | 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 160637
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
136 AM CDT WED AUG 16 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR AUGUST 15 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         84   1218 PM  98    1944  82      2       78
  MINIMUM         68    523 AM  48    2004  63      5       67
  AVERAGE         76                        73      3       73

PRECIPITATION (IN)
  YESTERDAY        0.00          1.87 1993   0.18  -0.18      T
  MONTH TO DATE    1.83                      2.47  -0.64     0.98
  SINCE JUN 1     12.95                      9.62   3.33    10.06
  SINCE JAN 1     31.06                     22.70   8.36    23.70

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       11                         8      3        8
  MONTH TO DATE  101                       127    -26      189
  SINCE JUN 1    637                       575     62      737
  SINCE JAN 1    670                       629     41      811
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    NE (50)
  AVERAGE WIND SPEED     7.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87           500 AM
 LOWEST     54          1000 AM
 AVERAGE    71

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   82        98      1988
                                             1983
 MINIMUM TEMPERATURE (F)   63        48      2004


SUNRISE AND SUNSET
AUGUST 16 2017........SUNRISE   601 AM CDT   SUNSET   750 PM CDT
AUGUST 17 2017........SUNRISE   602 AM CDT   SUNSET   748 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.