Climatological Report (Daily)
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CDUS43 KLOT 270650
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
149 AM CDT THU JUL 27 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JULY 26 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         85    200 PM  99    1955  84      1       88
  MINIMUM         65    519 AM  53    1991  64      1       69
                                      1962
  AVERAGE         75                        74      1       79

PRECIPITATION (IN)
  YESTERDAY        0.03          4.10 1878   0.13  -0.10     0.00
  MONTH TO DATE    7.68                      3.02   4.66     5.46
  SINCE JUN 1     11.12                      6.47   4.65     8.31
  SINCE JAN 1     29.23                     19.55   9.68    21.95

SNOWFALL (IN)
  YESTERDAY        0.0           0.0    MM   0.0    0.0      0.0
  MONTH TO DATE    T                         0.0    0.0      0.0
  SINCE JUN 1      T                         0.0    0.0      0.0
  SINCE JUL 1      T                         0.0    0.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE JUN 1      3                        48    -45       13
  SINCE JUL 1      0                         0      0        0

 COOLING
  YESTERDAY       10                         9      1       14
  MONTH TO DATE  261                       233     28      279
  SINCE JUN 1    491                       398     93      495
  SINCE JAN 1    524                       452     72      569
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED     7.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    78           300 AM
 LOWEST     59           300 PM
 AVERAGE    69

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84       100      1955
                                             1916
 MINIMUM TEMPERATURE (F)   64        52      1985


SUNRISE AND SUNSET
JULY 27 2017..........SUNRISE   540 AM CDT   SUNSET   815 PM CDT
JULY 28 2017..........SUNRISE   541 AM CDT   SUNSET   814 PM CDT


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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