Climatological Report (Daily)
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000
CDUS43 KLOT 130638
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
138 AM CDT MON MAR 13 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MARCH 12 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         36    205 PM  81    1990  45     -9       59
  MINIMUM         18    544 AM   1    1948  28    -10       33
  AVERAGE         27                        36     -9       46

PRECIPITATION (IN)
  YESTERDAY        0.05          1.72 1902   0.07  -0.02      T
  MONTH TO DATE    0.42                      0.92  -0.50     0.45
  SINCE MAR 1      0.42                      0.92  -0.50     0.45
  SINCE JAN 1      4.81                      4.44   0.37     2.52

SNOWFALL (IN)
  YESTERDAY        0.4           4.4  1991   0.2    0.2      0.0
  MONTH TO DATE    0.5                       2.8   -2.3      2.6
  SINCE MAR 1      0.5                       2.8   -2.3      2.6
  SINCE JUL 1     18.8                      32.3  -13.5     30.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       38                        29      9       19
  MONTH TO DATE  319                       367    -48      288
  SINCE MAR 1    319                       367    -48      288
  SINCE JUL 1   4244                      5101   -857     4296

 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    16   HIGHEST WIND DIRECTION     E (80)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    SE (120)
  AVERAGE WIND SPEED     6.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85          1000 PM
 LOWEST     23          1200 PM
 AVERAGE    54

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   45        73      2007
 MINIMUM TEMPERATURE (F)   28         6      1896


SUNRISE AND SUNSET
MARCH 13 2017.........SUNRISE   706 AM CDT   SUNSET   656 PM CDT
MARCH 14 2017.........SUNRISE   705 AM CDT   SUNSET   657 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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