Climatological Report (Daily)
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135
CDUS43 KLOT 150633
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT MON MAY 15 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 14 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   1139 AM  92    1982  69      2       47
  MINIMUM         51    321 AM  32    1895  48      3       41
  AVERAGE         61                        59      2       44

PRECIPITATION (IN)
  YESTERDAY        0.00          1.95 1945   0.12  -0.12     0.00
  MONTH TO DATE    1.23                      1.63  -0.40     3.66
  SINCE MAR 1     11.67                      7.51   4.16     9.80
  SINCE JAN 1     16.06                     11.03   5.03    11.87

SNOWFALL (IN)
  YESTERDAY        0.0           T    1973   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        4                         8     -4       21
  MONTH TO DATE  172                       130     42      151
  SINCE MAR 1   1296                      1463   -167     1333
  SINCE JUL 1   5221                      6197   -976     5341

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    0                        12    -12        0
  SINCE MAR 1     12                        22    -10        7
  SINCE JAN 1     12                        22    -10        7
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION    NE (30)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    NE (60)
  AVERAGE WIND SPEED     7.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    83           200 AM
 LOWEST     39           300 PM
 AVERAGE    61

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   70        91      1962
 MINIMUM TEMPERATURE (F)   48        35      2016
                                             1895


SUNRISE AND SUNSET
MAY 15 2017...........SUNRISE   531 AM CDT   SUNSET   806 PM CDT
MAY 16 2017...........SUNRISE   530 AM CDT   SUNSET   807 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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