Climatological Report (Daily)
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000
CDUS43 KLOT 171141
CLIORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1244 AM CST SAT JAN 17 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 16 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         34    144 PM  57    1990  31      3       34
  MINIMUM         23    237 AM -25    1982  16      7       19
  AVERAGE         29                        24      5       27

PRECIPITATION (IN)
  YESTERDAY        0.00          0.56 1885   0.05  -0.05     0.01
  MONTH TO DATE    1.11                      0.96   0.15     2.21
  SINCE DEC 1      1.90                      3.21  -1.31     4.15
  SINCE JAN 1      1.11                      0.96   0.15     2.21

SNOWFALL (IN)
  YESTERDAY        0.0           6.4  1885   0.3   -0.3      0.3
  MONTH TO DATE   10.8                       5.3    5.5     20.3
  SINCE DEC 1     10.8                      13.8   -3.0     34.5
  SINCE JUL 1     13.7                      15.2   -1.5     35.4
  SNOW DEPTH       4

DEGREE DAYS
 HEATING
  YESTERDAY       36                        42     -6       38
  MONTH TO DATE  790                       658    132      750
  SINCE DEC 1   1805                      1813     -8     2033
  SINCE JUL 1   3248                      3069    179     3316

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    SE (140)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    SE (140)
  AVERAGE WIND SPEED     8.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.

  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    88          1200 AM
 LOWEST     64           100 PM
 AVERAGE    76

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        60      1894
 MINIMUM TEMPERATURE (F)   16       -23      1982


SUNRISE AND SUNSET
JANUARY 17 2015.......SUNRISE   716 AM CST   SUNSET   448 PM CST
JANUARY 18 2015.......SUNRISE   716 AM CST   SUNSET   449 PM CST


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




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