Climatological Report (Daily)
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291
CDUS43 KLOT 182132
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
431 PM CDT SAT MAR 18 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR MARCH 18 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         45   1253 PM  81    2012  47     -2       49
  MINIMUM         39    815 AM   3    1923  30      9       32
  AVERAGE         42                        39      3       41

PRECIPITATION (IN)
  TODAY            0.00          1.33 1983   0.08  -0.08     0.00
  MONTH TO DATE    0.88                      1.38  -0.50     1.30
  SINCE MAR 1      0.88                      1.38  -0.50     1.30
  SINCE JAN 1      5.27                      4.90   0.37     3.37

SNOWFALL (IN)
  TODAY            0.0           4.5  1971   0.1   -0.1      0.0
  MONTH TO DATE    7.8                       3.9    3.9      2.6
  SINCE MAR 1      7.8                       3.9    3.9      2.6
  SINCE JUL 1     26.1                      33.4   -7.3     30.1

DEGREE DAYS
 HEATING
  TODAY           23                        26     -3       24
  MONTH TO DATE  516                       530    -14      391
  SINCE MAR 1    516                       530    -14      391
  SINCE JUL 1   4441                      5264   -823     4399

 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    24   HIGHEST WIND DIRECTION     W (290)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED    15.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    70           200 AM
 LOWEST     58           100 PM
 AVERAGE    64

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   48        78      2012
                                             1921
 MINIMUM TEMPERATURE (F)   30         0      1923


SUNRISE AND SUNSET
MARCH 18 2017.........SUNRISE   658 AM CDT   SUNSET   702 PM CDT
MARCH 19 2017.........SUNRISE   656 AM CDT   SUNSET   703 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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