Climatological Report (Daily)
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CDUS43 KLOT 202135
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
435 PM CDT MON MAR 20 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR MARCH 20 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    141 PM  85    2012  48      6       44
  MINIMUM         43    445 AM   4    1885  31     12       30
  AVERAGE         49                        39     10       37

PRECIPITATION (IN)
  TODAY            0.13          0.96 1935   0.08   0.05     0.00
  MONTH TO DATE    1.01                      1.54  -0.53     1.30
  SINCE MAR 1      1.01                      1.54  -0.53     1.30
  SINCE JAN 1      5.40                      5.06   0.34     3.37

SNOWFALL (IN)
  TODAY            0.0           6.0  1964   0.1   -0.1      0.0
  MONTH TO DATE    7.8                       4.2    3.6      2.6
  SINCE MAR 1      7.8                       4.2    3.6      2.6
  SINCE JUL 1     26.1                      33.7   -7.6     30.1

DEGREE DAYS
 HEATING
  TODAY           16                        26    -10       28
  MONTH TO DATE  559                       582    -23      443
  SINCE MAR 1    559                       582    -23      443
  SINCE JUL 1   4484                      5316   -832     4451

 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    21   HIGHEST WIND DIRECTION     N (20)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     N (20)
  AVERAGE WIND SPEED     8.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  THUNDERSTORM
  LIGHT RAIN
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    89           600 AM
 LOWEST     50           100 AM
 AVERAGE    70

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


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


SUNRISE AND SUNSET
MARCH 20 2017.........SUNRISE   654 AM CDT   SUNSET   704 PM CDT
MARCH 21 2017.........SUNRISE   653 AM CDT   SUNSET   705 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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