Climatological Report (Daily)
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175
CDUS43 KLOT 190638
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1238 AM CST SUN NOV 19 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR NOVEMBER 18 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         48   1203 AM  72    1953  47      1       66
  MINIMUM         35    126 PM   8    1880  32      3       39
  AVERAGE         42                        39      3       53

PRECIPITATION (IN)
  YESTERDAY        0.54          1.44 1921   0.11   0.43     0.20
  MONTH TO DATE    1.73                      1.88  -0.15     0.41
  SINCE SEP 1     10.75                      8.24   2.51     5.94
  SINCE JAN 1     42.49                     33.37   9.12    32.92

SNOWFALL (IN)
  YESTERDAY        T             2.5  1986   0.0    0.0      0.0
  MONTH TO DATE    0.1                       0.3   -0.2      0.0
  SINCE SEP 1      0.1                       0.5   -0.4      0.0
  SINCE JUL 1      0.1                       0.5   -0.4      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       23                        26     -3       12
  MONTH TO DATE  463                       391     72      220
  SINCE SEP 1    751                       893   -142      509
  SINCE JUL 1    756                       906   -150      509

 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    29   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    36   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    15.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           300 AM
 LOWEST     64          1000 PM
 AVERAGE    79

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   46        75      1930
 MINIMUM TEMPERATURE (F)   31        10      1894


SUNRISE AND SUNSET
NOVEMBER 19 2017......SUNRISE   647 AM CST   SUNSET   427 PM CST
NOVEMBER 20 2017......SUNRISE   648 AM CST   SUNSET   426 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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