Climatological Report (Daily)
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CDUS43 KLOT 230637
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1237 AM CST MON JAN 23 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 22 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         46    157 PM  59    1909  31     15       30
  MINIMUM         38    528 AM -17    1936  16     22       19
                                      1883
  AVERAGE         42                        24     18       25

PRECIPITATION (IN)
  YESTERDAY        0.01          1.39 1887   0.05  -0.04     0.02
  MONTH TO DATE    2.74                      1.28   1.46     0.67
  SINCE DEC 1      4.51                      3.53   0.98     5.54
  SINCE JAN 1      2.74                      1.28   1.46     0.67

SNOWFALL (IN)
  YESTERDAY        0.0           6.2  2005   0.3   -0.3      0.4
  MONTH TO DATE    0.4                       7.5   -7.1      6.3
  SINCE DEC 1     18.1                      15.7    2.4     10.8
  SINCE JUL 1     18.1                      17.1    1.0     22.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       23                        42    -19       40
  MONTH TO DATE  820                       910    -90      946
  SINCE DEC 1   2051                      2065    -14     1746
  SINCE JUL 1   2880                      3321   -441     2719

 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    14   HIGHEST WIND DIRECTION     N (10)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     N (360)
  AVERAGE WIND SPEED     5.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100          1200 AM
 LOWEST     76           400 PM
 AVERAGE    88

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        65      1909
 MINIMUM TEMPERATURE (F)   16       -18      1963


SUNRISE AND SUNSET
JANUARY 23 2017.......SUNRISE   712 AM CST   SUNSET   455 PM CST
JANUARY 24 2017.......SUNRISE   711 AM CST   SUNSET   457 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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