Climatological Report (Daily)
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039
CDUS43 KLOT 270637
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
136 AM CDT SAT MAY 27 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 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         71    940 AM  94    1911  73     -2       83
  MINIMUM         52    446 AM  34    1983  51      1       62
  AVERAGE         62                        62      0       73

PRECIPITATION (IN)
  YESTERDAY        0.53          1.78 1913   0.11   0.42     0.00
  MONTH TO DATE    3.28                      3.08   0.20     4.61
  SINCE MAR 1     13.72                      8.96   4.76    10.75
  SINCE JAN 1     18.11                     12.48   5.63    12.82

SNOWFALL (IN)
  YESTERDAY        0.0           T    1889   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE MAR 1      7.8                       6.8    1.0      3.7
  SINCE JUL 1     26.1                      36.3  -10.2     31.2
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        3                         5     -2        0
  MONTH TO DATE  232                       203     29      225
  SINCE MAR 1   1356                      1536   -180     1407
  SINCE JUL 1   5281                      6270   -989     5415

 COOLING
  YESTERDAY        0                         2     -2        8
  MONTH TO DATE   18                        32    -14       26
  SINCE MAR 1     30                        42    -12       33
  SINCE JAN 1     30                        42    -12       33
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     E (80)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     E (100)
  AVERAGE WIND SPEED     7.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           500 PM
 LOWEST     57          1000 AM
 AVERAGE    75

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        97      2012
 MINIMUM TEMPERATURE (F)   52        33      1992


SUNRISE AND SUNSET
MAY 27 2017...........SUNRISE   521 AM CDT   SUNSET   817 PM CDT
MAY 28 2017...........SUNRISE   521 AM CDT   SUNSET   818 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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