Climatological Report (Daily)
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625
CDUS43 KLOT 120636
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1234 AM CST THU JAN 12 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 11 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         43    357 PM  61    1880  31     12       24
  MINIMUM         25    506 AM -11    1977  16      9       -1
                                      1888
                                      1887
  AVERAGE         34                        24     10       12

PRECIPITATION (IN)
  YESTERDAY        0.33          0.64 1918   0.06   0.27     0.11
  MONTH TO DATE    0.66                      0.68  -0.02     0.58
  SINCE DEC 1      2.43                      2.93  -0.50     5.45
  SINCE JAN 1      0.66                      0.68  -0.02     0.58

SNOWFALL (IN)
  YESTERDAY        0.0           5.9  2011   0.3   -0.3      3.1
                                      1918
  MONTH TO DATE    0.2                       3.6   -3.4      4.8
  SINCE DEC 1     17.9                      11.8    6.1      9.3
  SINCE JUL 1     17.9                      13.2    4.7     20.5
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       31                        41    -10       53
  MONTH TO DATE  480                       451     29      423
  SINCE DEC 1   1711                      1606    105     1223
  SINCE JUL 1   2540                      2862   -322     2196

 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    22   HIGHEST WIND DIRECTION     N (10)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     N (10)
  AVERAGE WIND SPEED    12.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  HEAVY RAIN
  LIGHT RAIN
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           300 PM
 LOWEST     70          1100 AM
 AVERAGE    85

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        62      2005
                                             1890
 MINIMUM TEMPERATURE (F)   16       -14      1918


SUNRISE AND SUNSET
JANUARY 12 2017.......SUNRISE   718 AM CST   SUNSET   442 PM CST
JANUARY 13 2017.......SUNRISE   718 AM CST   SUNSET   444 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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