Climatological Report (Daily)
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CDUS43 KLOT 190636
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
136 AM CDT SUN MAR 19 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MARCH 18 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         45   1253 PM  81    2012  47     -2       49
  MINIMUM         32   1132 PM   3    1923  30      2       32
  AVERAGE         39                        39      0       41

PRECIPITATION (IN)
  YESTERDAY        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)
  YESTERDAY        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
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       26                        26      0       24
  MONTH TO DATE  519                       530    -11      391
  SINCE MAR 1    519                       530    -11      391
  SINCE JUL 1   4444                      5264   -820     4399

 COOLING
  YESTERDAY        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    13.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


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

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


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


SUNRISE AND SUNSET
MARCH 19 2017.........SUNRISE   656 AM CDT   SUNSET   703 PM CDT
MARCH 20 2017.........SUNRISE   654 AM CDT   SUNSET   704 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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