Climatological Report (Daily)
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CDUS43 KLOT 110633
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT THU MAY 11 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 10 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         67   1129 AM  90    2011  68     -1       63
  MINIMUM         44    428 AM  28    1983  47     -3       51
  AVERAGE         56                        57     -1       57

PRECIPITATION (IN)
  YESTERDAY        0.87          2.84 1951   0.12   0.75     0.79
  MONTH TO DATE    1.23                      1.16   0.07     2.31
  SINCE MAR 1     11.67                      7.04   4.63     8.45
  SINCE JAN 1     16.06                     10.56   5.50    10.52

SNOWFALL (IN)
  YESTERDAY        0.0           T    1945   0.0    0.0      0.0
                                      1907
                                      1902
  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        9                         9      0        8
  MONTH TO DATE  154                        98     56      112
  SINCE MAR 1   1278                      1431   -153     1294
  SINCE JUL 1   5203                      6165   -962     5302

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    0                         8     -8        0
  SINCE MAR 1     12                        18     -6        7
  SINCE JAN 1     12                        18     -6        7
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION    NE (30)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED     7.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           900 PM
 LOWEST     46           200 AM
 AVERAGE    71

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   69        89      1982
 MINIMUM TEMPERATURE (F)   47        33      1981


SUNRISE AND SUNSET
MAY 11 2017...........SUNRISE   535 AM CDT   SUNSET   801 PM CDT
MAY 12 2017...........SUNRISE   534 AM CDT   SUNSET   802 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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