Climatological Report (Daily)
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CDUS43 KLOT 210635
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT SAT MAR 21 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MARCH 20 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         50    326 PM  85    2012  48      2       47
  MINIMUM         38    412 AM   4    1885  31      7       30
  AVERAGE         44                        39      5       39

PRECIPITATION (IN)
  YESTERDAY        0.00          0.96 1935   0.08  -0.08     0.04
  MONTH TO DATE    0.13                      1.54  -1.41     1.40
  SINCE MAR 1      0.13                      1.54  -1.41     1.40
  SINCE JAN 1      2.99                      5.06  -2.07     6.70

SNOWFALL (IN)
  YESTERDAY        0.0           6.0  1964   0.1   -0.1      0.7
  MONTH TO DATE    0.7                       4.2   -3.5     11.7
  SINCE MAR 1      0.7                       4.2   -3.5     11.7
  SINCE JUL 1     44.3                      34.0   10.3     80.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       21                        26     -5       26
  MONTH TO DATE  587                       582      5      716
  SINCE MAR 1    587                       582      5      716
  SINCE JUL 1   5767                      5316    451     6131

 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    18   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     9.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85          1100 PM
 LOWEST     56          1100 AM
 AVERAGE    71

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   49        87      2012
 MINIMUM TEMPERATURE (F)   31         9      1888
                                             1885


SUNRISE AND SUNSET
MARCH 21 2015.........SUNRISE   654 AM CDT   SUNSET   705 PM CDT
MARCH 22 2015.........SUNRISE   652 AM CDT   SUNSET   706 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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