Climatological Report (Daily)
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000
CDUS43 KLOT 100637
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1236 AM CST TUE JAN 10 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 9 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         33   1159 PM  60    1880  31      2       40
  MINIMUM         18    127 AM -20    1875  17      1       23
  AVERAGE         26                        24      2       32

PRECIPITATION (IN)
  YESTERDAY        0.02          0.76 1946   0.06  -0.04     0.27
  MONTH TO DATE    0.13                      0.56  -0.43     0.47
  SINCE DEC 1      1.90                      2.81  -0.91     5.34
  SINCE JAN 1      0.13                      0.56  -0.43     0.47

SNOWFALL (IN)
  YESTERDAY        0.2           6.8  1977   0.4   -0.2      1.7
  MONTH TO DATE    0.2                       3.0   -2.8      1.7
  SINCE DEC 1     17.9                      11.2    6.7      6.2
  SINCE JUL 1     17.9                      12.6    5.3     17.4
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       39                        41     -2       33
  MONTH TO DATE  422                       369     53      318
  SINCE DEC 1   1653                      1524    129     1118
  SINCE JUL 1   2482                      2780   -298     2091

 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     S (190)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED    13.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84           600 PM
 LOWEST     49          1200 AM
 AVERAGE    67

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        60      1975
 MINIMUM TEMPERATURE (F)   17       -26      1982


SUNRISE AND SUNSET
JANUARY 10 2017.......SUNRISE   719 AM CST   SUNSET   440 PM CST
JANUARY 11 2017.......SUNRISE   718 AM CST   SUNSET   441 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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