Climatological Report (Daily)
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000
CDUS43 KLOT 042142
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
440 PM CDT THU SEP 4 2014


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR SEPTEMBER 4 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         83    259 PM  95    1983  79      4       84
                                      1960
                                      1954
  MINIMUM         71   1107 AM  45    1997  59     12       59
                                      1982
  AVERAGE         77                        69      8       72

PRECIPITATION (IN)
  TODAY            0.26          2.95 1894   0.12   0.14     0.00
  MONTH TO DATE    0.63                      0.47   0.16     0.14
  SINCE SEP 1      0.63                      0.47   0.16     0.14
  SINCE JAN 1     32.71                     25.60   7.11    32.51

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                         1     -1        0
  MONTH TO DATE    0                         4     -4        0
  SINCE SEP 1      0                         4     -4        0
  SINCE JUL 1      5                        17    -12       11

 COOLING
  TODAY           12                         5      7        7
  MONTH TO DATE   41                        22     19       24
  SINCE SEP 1     41                        22     19       24
  SINCE JAN 1    756                       762     -6      789
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    26   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED    13.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84          1000 AM
 LOWEST     58           300 PM
 AVERAGE    71

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   79        98      1899
 MINIMUM TEMPERATURE (F)   59        44      1988
                                             1984


SUNRISE AND SUNSET
SEPTEMBER  4 2014.....SUNRISE   620 AM CDT   SUNSET   720 PM CDT
SEPTEMBER  5 2014.....SUNRISE   621 AM CDT   SUNSET   718 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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