Climatological Report (Daily)
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000
CDUS43 KLOT 202152
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
443 PM CDT SAT SEP 20 2014

...................................
...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR SEPTEMBER 20 2014...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2014


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         77   1145 AM  91    1931  73      4       76
                                      1895
  MINIMUM         63    636 AM  36    1991  52     11       58
  AVERAGE         70                        63      7       67

PRECIPITATION (IN)
  TODAY            0.08          1.33 2001   0.11  -0.03      T
  MONTH TO DATE    2.66                      2.18   0.48     2.19
  SINCE SEP 1      2.66                      2.18   0.48     2.19
  SINCE JAN 1     34.74                     27.31   7.43    34.56

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      0.0                       0.0    0.0      0.0

DEGREE DAYS
 HEATING
  TODAY            0                         4     -4        0
  MONTH TO DATE   79                        44     35       28
  SINCE SEP 1     79                        44     35       28
  SINCE JUL 1     84                        57     27       39

 COOLING
  TODAY            5                         2      3        2
  MONTH TO DATE   74                        78     -4      136
  SINCE SEP 1     74                        78     -4      136
  SINCE JAN 1    789                       818    -29      901
..................................................................
WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED    12.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    73           700 AM
 LOWEST     56          1200 AM
 AVERAGE    65

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   73        92      1970
 MINIMUM TEMPERATURE (F)   52        39      1991
                                             1983
                                             1889


SUNRISE AND SUNSET
SEPTEMBER 20 2014.....SUNRISE   637 AM CDT   SUNSET   652 PM CDT
SEPTEMBER 21 2014.....SUNRISE   638 AM CDT   SUNSET   651 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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