Climatological Report (Daily)
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000
CDUS43 KLOT 130633
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT FRI APR 13 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 12 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         73   1232 PM  86    1977  58     15       59
                                      1971
  MINIMUM         42   1159 PM  21    1957  38      4       38
                                      1939
  AVERAGE         58                        48     10       49

PRECIPITATION (IN)
  YESTERDAY        0.03          1.16 1952   0.11  -0.08     0.00
                                      1909
  MONTH TO DATE    0.50                      1.30  -0.80     1.86
  SINCE MAR 1      2.24                      3.80  -1.56     5.87
  SINCE JAN 1      8.42                      7.32   1.10    10.26

SNOWFALL (IN)
  YESTERDAY        0.0           1.7  1973   0.0    0.0      0.0
  MONTH TO DATE    2.2                       0.8    1.4      0.0
  SINCE MAR 1      4.8                       6.4   -1.6      7.8
  SINCE JUL 1     35.1                      35.9   -0.8     26.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        7                        18    -11       16
  MONTH TO DATE  341                       235    106      171
  SINCE MAR 1   1208                      1076    132      956
  SINCE JUL 1   5666                      5810   -144     4881

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        2
  SINCE MAR 1      0                         1     -1        2
  SINCE JAN 1      0                         1     -1        2
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED    14.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           300 AM
 LOWEST     38          1200 PM
 AVERAGE    66

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   58        82      1941
                                             1887
 MINIMUM TEMPERATURE (F)   38        21      1950


SUNRISE AND SUNSET
APRIL 13 2018.........SUNRISE   614 AM CDT   SUNSET   731 PM CDT
APRIL 14 2018.........SUNRISE   613 AM CDT   SUNSET   732 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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