Climatological Report (Daily)
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CDUS43 KLOT 161238
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
637 AM CST THU NOV 16 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR NOVEMBER 15 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         52    337 PM  71    1971  49      3       54
                                      1955
                                      1953
  MINIMUM         35   1159 PM  10    1933  33      2       38
  AVERAGE         44                        41      3       46

PRECIPITATION (IN)
  YESTERDAY        0.17          0.63 1927   0.11   0.06     0.00
  MONTH TO DATE    1.05                      1.56  -0.51     0.21
  SINCE SEP 1     10.07                      7.92   2.15     5.74
  SINCE JAN 1     41.81                     33.05   8.76    32.72

SNOWFALL (IN)
  YESTERDAY        0.0           4.8  1940   0.0    0.0      0.0
  MONTH TO DATE    0.1                       0.2   -0.1      0.0
  SINCE SEP 1      0.1                       0.4   -0.3      0.0
  SINCE JUL 1      0.1                       0.4   -0.3      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       21                        24     -3       19
  MONTH TO DATE  388                       315     73      186
  SINCE SEP 1    676                       817   -141      475
  SINCE JUL 1    681                       830   -149      475

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        3
  SINCE SEP 1    208                       103    105      192
  SINCE JAN 1    991                       843    148     1157
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    30   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    40   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED    15.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          1100 AM
 LOWEST     61          1200 AM
 AVERAGE    77

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   48        73      1952
 MINIMUM TEMPERATURE (F)   32         6      1959


SUNRISE AND SUNSET
NOVEMBER 16 2017......SUNRISE   643 AM CST   SUNSET   429 PM CST
NOVEMBER 17 2017......SUNRISE   644 AM CST   SUNSET   429 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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