Climatological Report (Daily)
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046
CDUS43 KLOT 150637
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
136 AM CDT TUE MAY 15 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 14 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         83    341 PM  92    1982  69     14       71
  MINIMUM         53    419 AM  32    1895  48      5       51
  AVERAGE         68                        59      9       61

PRECIPITATION (IN)
  YESTERDAY        1.54          1.95 1945   0.12   1.42     0.00
  MONTH TO DATE    4.96                      1.63   3.33     1.23
  SINCE MAR 1      9.42                      7.51   1.91    11.67
  SINCE JAN 1     15.60                     11.03   4.57    16.06

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      5.8                       6.8   -1.0      7.8
  SINCE JUL 1     36.1                      36.3   -0.2     26.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         8     -8        4
  MONTH TO DATE   59                       130    -71      172
  SINCE MAR 1   1631                      1463    168     1296
  SINCE JUL 1   6089                      6197   -108     5221

 COOLING
  YESTERDAY        3                         1      2        0
  MONTH TO DATE   37                        12     25        0
  SINCE MAR 1     37                        22     15       12
  SINCE JAN 1     37                        22     15       12
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    38   HIGHEST GUST DIRECTION     W (290)
  AVERAGE WIND SPEED     8.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           900 PM
 LOWEST     51           200 PM
 AVERAGE    72

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


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 2018...........SUNRISE   531 AM CDT   SUNSET   805 PM CDT
MAY 16 2018...........SUNRISE   530 AM CDT   SUNSET   806 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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