Climatological Report (Daily)
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000
CDUS43 KLOT 170633
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
133 AM CDT FRI MAR 17 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MARCH 16 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         42    528 PM  82    2012  47     -5       56
  MINIMUM         18    600 AM  -1    1900  29    -11       45
  AVERAGE         30                        38     -8       51

PRECIPITATION (IN)
  YESTERDAY        0.00          1.64 1876   0.08  -0.08     0.04
  MONTH TO DATE    0.85                      1.22  -0.37     1.30
  SINCE MAR 1      0.85                      1.22  -0.37     1.30
  SINCE JAN 1      5.24                      4.74   0.50     3.37

SNOWFALL (IN)
  YESTERDAY        0.0           6.0  1960   0.2   -0.2      0.0
  MONTH TO DATE    7.8                       3.6    4.2      2.6
  SINCE MAR 1      7.8                       3.6    4.2      2.6
  SINCE JUL 1     26.1                      33.1   -7.0     30.1
  SNOW DEPTH       1

DEGREE DAYS
 HEATING
  YESTERDAY       35                        27      8       14
  MONTH TO DATE  471                       477     -6      350
  SINCE MAR 1    471                       477     -6      350
  SINCE JUL 1   4396                      5211   -815     4358

 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    12   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     6.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    64          1000 PM
 LOWEST     30           300 PM
 AVERAGE    47

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   47        82      2012
 MINIMUM TEMPERATURE (F)   30        -1      1900


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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