Climatological Report (Daily)
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CDUS43 KLOT 090633
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT MON APR 9 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 8 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         39    249 PM  80    1931  56    -17       68
  MINIMUM         21    456 AM  20    1972  36    -15       37
                                      1914
  AVERAGE         30                        46    -16       53

PRECIPITATION (IN)
  YESTERDAY        0.01          1.35 1999   0.11  -0.10     0.00
  MONTH TO DATE    0.29                      0.84  -0.55     1.54
  SINCE MAR 1      2.03                      3.34  -1.31     5.55
  SINCE JAN 1      8.21                      6.86   1.35     9.94

SNOWFALL (IN)
  YESTERDAY        T             4.5  1938   0.0    0.0      0.0
  MONTH TO DATE    0.2                       0.6   -0.4      0.0
  SINCE MAR 1      2.8                       6.2   -3.4      7.8
  SINCE JUL 1     33.1                      35.7   -2.6     26.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       35                        19     16       12
  MONTH TO DATE  264                       162    102      133
  SINCE MAR 1   1131                      1003    128      918
  SINCE JUL 1   5589                      5737   -148     4843

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE MAR 1      0                         1     -1        0
  SINCE JAN 1      0                         1     -1        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     E (70)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     E (100)
  AVERAGE WIND SPEED     7.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85          1100 PM
 LOWEST     23          1100 AM
 AVERAGE    54

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   56        80      1887
 MINIMUM TEMPERATURE (F)   37        20      1989


SUNRISE AND SUNSET
APRIL  9 2018.........SUNRISE   621 AM CDT   SUNSET   726 PM CDT
APRIL 10 2018.........SUNRISE   619 AM CDT   SUNSET   727 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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