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 072236
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CST THU DEC 7 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR DECEMBER 7 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         29    239 PM  64    1916  37     -8       27
  MINIMUM         19    757 AM  -6    1882  23     -4       22
  AVERAGE         24                        30     -6       25

PRECIPITATION (IN)
  TODAY            T             1.12 1980   0.09  -0.09      T
  MONTH TO DATE    0.16                      0.63  -0.47     0.50
  SINCE DEC 1      0.16                      0.63  -0.47     0.50
  SINCE JAN 1     42.67                     35.27   7.40    34.70

SNOWFALL (IN)
  TODAY            T             6.9  1978   0.2   -0.2       T
  MONTH TO DATE    T                         1.5   -1.5      6.4
  SINCE DEC 1      T                         1.5   -1.5      6.4
  SINCE JUL 1      0.1                       2.9   -2.8      6.4

DEGREE DAYS
 HEATING
  TODAY           41                        35      6       40
  MONTH TO DATE  180                       235    -55      227
  SINCE DEC 1    180                       235    -55      227
  SINCE JUL 1   1223                      1491   -268     1056

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    991                       843    148     1157
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    13.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT SNOW


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    74           300 AM
 LOWEST     42           300 PM
 AVERAGE    58

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   37        64      1946
 MINIMUM TEMPERATURE (F)   23        -7      1882


SUNRISE AND SUNSET
DECEMBER  7 2017......SUNRISE   706 AM CST   SUNSET   420 PM CST
DECEMBER  8 2017......SUNRISE   707 AM CST   SUNSET   420 PM CST


-  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.