Climatological Report (Daily)
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000
CDUS43 KLOT 122131
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
431 PM CDT FRI MAY 12 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR MAY 12 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         73    114 PM  92    1956  69      4       70
  MINIMUM         45    408 AM  31    1981  47     -2       53
  AVERAGE         59                        58      1       62

PRECIPITATION (IN)
  TODAY            0.00          2.67 1935   0.12  -0.12     0.48
  MONTH TO DATE    1.23                      1.39  -0.16     2.98
  SINCE MAR 1     11.67                      7.27   4.40     9.12
  SINCE JAN 1     16.06                     10.79   5.27    11.19

SNOWFALL (IN)
  TODAY            0.0           T    1923   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

DEGREE DAYS
 HEATING
  TODAY            6                         8     -2        3
  MONTH TO DATE  168                       114     54      120
  SINCE MAR 1   1292                      1447   -155     1302
  SINCE JUL 1   5217                      6181   -964     5310

 COOLING
  TODAY            0                         1     -1        0
  MONTH TO DATE    0                        10    -10        0
  SINCE MAR 1     12                        20     -8        7
  SINCE JAN 1     12                        20     -8        7
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION    NE (60)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     5.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    82           400 AM
 LOWEST     31           100 PM
 AVERAGE    57

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        89      1991
                                             1956
 MINIMUM TEMPERATURE (F)   47        34      1996
                                             1888


SUNRISE AND SUNSET
MAY 12 2017...........SUNRISE   534 AM CDT   SUNSET   802 PM CDT
MAY 13 2017...........SUNRISE   533 AM CDT   SUNSET   804 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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