Climatological Report (Daily)
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CDUS43 KLOT 212145
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
443 PM CDT TUE MAR 21 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR MARCH 21 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         54   1128 AM  87    2012  49      5       49
  MINIMUM         35    416 AM   9    1888  31      4       28
                                      1885
  AVERAGE         45                        40      5       39

PRECIPITATION (IN)
  TODAY            0.00          1.07 2007   0.09  -0.09     0.00
  MONTH TO DATE    1.01                      1.63  -0.62     1.30
  SINCE MAR 1      1.01                      1.63  -0.62     1.30
  SINCE JAN 1      5.40                      5.15   0.25     3.37

SNOWFALL (IN)
  TODAY            0.0           8.5  1992   0.2   -0.2      0.0
  MONTH TO DATE    7.8                       4.4    3.4      2.6
  SINCE MAR 1      7.8                       4.4    3.4      2.6
  SINCE JUL 1     26.1                      33.9   -7.8     30.1

DEGREE DAYS
 HEATING
  TODAY           20                        25     -5       26
  MONTH TO DATE  582                       607    -25      469
  SINCE MAR 1    582                       607    -25      469
  SINCE JUL 1   4507                      5341   -834     4477

 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    20   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    24   HIGHEST GUST DIRECTION     N (340)
  AVERAGE WIND SPEED     8.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    82           600 AM
 LOWEST     39           800 AM
 AVERAGE    61

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   49        83      2012
 MINIMUM TEMPERATURE (F)   31        -1      1888


SUNRISE AND SUNSET
MARCH 21 2017.........SUNRISE   653 AM CDT   SUNSET   705 PM CDT
MARCH 22 2017.........SUNRISE   651 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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