Climatological Report (Daily)
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CDUS43 KLOT 100632
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
131 AM CDT WED MAY 10 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 9 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         61    452 PM  94    1934  68     -7       58
  MINIMUM         42    433 AM  27    1983  46     -4       50
  AVERAGE         52                        57     -5       54

PRECIPITATION (IN)
  YESTERDAY        0.13          3.14 1990   0.12   0.01     0.59
  MONTH TO DATE    0.36                      1.04  -0.68     1.52
  SINCE MAR 1     10.80                      6.92   3.88     7.66
  SINCE JAN 1     15.19                     10.44   4.75     9.73

SNOWFALL (IN)
  YESTERDAY        0.0           0.1  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
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       13                         9      4       11
  MONTH TO DATE  145                        89     56      104
  SINCE MAR 1   1269                      1422   -153     1286
  SINCE JUL 1   5194                      6156   -962     5294

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    0                         7     -7        0
  SINCE MAR 1     12                        17     -5        7
  SINCE JAN 1     12                        17     -5        7
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     E (110)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION     E (110)
  AVERAGE WIND SPEED     6.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    76           400 AM
 LOWEST     43           200 PM
 AVERAGE    60

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   68        90      2011
 MINIMUM TEMPERATURE (F)   47        28      1983


SUNRISE AND SUNSET
MAY 10 2017...........SUNRISE   536 AM CDT   SUNSET   800 PM CDT
MAY 11 2017...........SUNRISE   535 AM CDT   SUNSET   801 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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