Climatological Report (Daily)
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782
CDUS43 KLOT 280633
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT SUN MAY 28 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 27 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         78    244 PM  97    2012  74      4       81
  MINIMUM         52    407 AM  33    1992  52      0       66
  AVERAGE         65                        62      3       74

PRECIPITATION (IN)
  YESTERDAY        0.00          1.80 1939   0.12  -0.12     0.13
  MONTH TO DATE    3.28                      3.20   0.08     4.74
  SINCE MAR 1     13.72                      9.08   4.64    10.88
  SINCE JAN 1     18.11                     12.60   5.51    12.95

SNOWFALL (IN)
  YESTERDAY        0.0           0.0    MM   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        0                         5     -5        0
  MONTH TO DATE  232                       208     24      225
  SINCE MAR 1   1356                      1541   -185     1407
  SINCE JUL 1   5281                      6275   -994     5415

 COOLING
  YESTERDAY        0                         2     -2        9
  MONTH TO DATE   18                        34    -16       35
  SINCE MAR 1     30                        44    -14       42
  SINCE JAN 1     30                        44    -14       42
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     E (70)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     E (70)
  AVERAGE WIND SPEED     5.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           400 AM
 LOWEST     46           200 PM
 AVERAGE    71

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        95      2012
 MINIMUM TEMPERATURE (F)   52        33      1992


SUNRISE AND SUNSET
MAY 28 2017...........SUNRISE   521 AM CDT   SUNSET   818 PM CDT
MAY 29 2017...........SUNRISE   520 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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