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976
CDUS43 KLOT 172137
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CDT FRI MAR 17 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR MARCH 17 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         46    259 PM  82    2012  47     -1       56
  MINIMUM         36    912 AM  -1    1900  30      6       40
  AVERAGE         41                        38      3       48

PRECIPITATION (IN)
  TODAY            0.03          1.42 1965   0.08  -0.05     0.00
  MONTH TO DATE    0.88                      1.30  -0.42     1.30
  SINCE MAR 1      0.88                      1.30  -0.42     1.30
  SINCE JAN 1      5.27                      4.82   0.45     3.37

SNOWFALL (IN)
  TODAY            T             4.1  1984   0.2   -0.2      0.0
  MONTH TO DATE    7.8                       3.8    4.0      2.6
  SINCE MAR 1      7.8                       3.8    4.0      2.6
  SINCE JUL 1     26.1                      33.3   -7.2     30.1

DEGREE DAYS
 HEATING
  TODAY           24                        27     -3       17
  MONTH TO DATE  495                       504     -9      367
  SINCE MAR 1    495                       504     -9      367
  SINCE JUL 1   4420                      5238   -818     4375

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE MAR 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    SE (130)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION    SE (130)
  AVERAGE WIND SPEED    10.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN
  LIGHT SNOW
  SLEET
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           900 AM
 LOWEST     59          1200 AM
 AVERAGE    76

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   47        81      2012
 MINIMUM TEMPERATURE (F)   30         3      1923


SUNRISE AND SUNSET
MARCH 17 2017.........SUNRISE   700 AM CDT   SUNSET   701 PM CDT
MARCH 18 2017.........SUNRISE   658 AM CDT   SUNSET   702 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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