Climatological Report (Daily)
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000
CDUS43 KLOT 150637
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1237 AM CST SUN JAN 15 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 14 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         35    257 PM  60    1928  31      4       44
  MINIMUM         21   1156 PM -14    1979  16      5       24
  AVERAGE         28                        24      4       34

PRECIPITATION (IN)
  YESTERDAY        0.00          1.10 1871   0.06  -0.06     0.00
  MONTH TO DATE    0.71                      0.85  -0.14     0.59
  SINCE DEC 1      2.48                      3.10  -0.62     5.46
  SINCE JAN 1      0.71                      0.85  -0.14     0.59

SNOWFALL (IN)
  YESTERDAY        0.0           6.3  1929   0.3   -0.3      0.0
  MONTH TO DATE    0.4                       4.6   -4.2      5.0
  SINCE DEC 1     18.1                      12.8    5.3      9.5
  SINCE JUL 1     18.1                      14.2    3.9     20.7
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       37                        41     -4       31
  MONTH TO DATE  601                       574     27      560
  SINCE DEC 1   1832                      1729    103     1360
  SINCE JUL 1   2661                      2985   -324     2333

 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     9   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    11   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED     4.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    75           800 PM
 LOWEST     52           300 PM
 AVERAGE    64

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        60      1949
 MINIMUM TEMPERATURE (F)   16       -19      1979


SUNRISE AND SUNSET
JANUARY 15 2017.......SUNRISE   717 AM CST   SUNSET   446 PM CST
JANUARY 16 2017.......SUNRISE   716 AM CST   SUNSET   447 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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