Climatological Report (Daily)
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CDUS43 KLOT 030645
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
145 AM CDT MON APR 3 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 2 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         61   1142 AM  82    1963  54      7       40
  MINIMUM         42    135 AM  18    1899  34      8       27
                                      1896
  AVERAGE         52                        44      8       34

PRECIPITATION (IN)
  YESTERDAY        T             1.64 1983   0.11  -0.11     0.02
  MONTH TO DATE    T                         0.21  -0.21     0.10
  SINCE MAR 1      4.01                      2.71   1.30     3.44
  SINCE JAN 1      8.40                      6.23   2.17     5.51

SNOWFALL (IN)
  YESTERDAY        0.0           9.4  1975   0.1   -0.1      0.3
  MONTH TO DATE    0.0                       0.2   -0.2      0.3
  SINCE MAR 1      7.8                       5.8    2.0      2.9
  SINCE JUL 1     26.1                      35.3   -9.2     30.4
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       13                        21     -8       31
  MONTH TO DATE   31                        43    -12       54
  SINCE MAR 1    816                       884    -68      719
  SINCE JUL 1   4741                      5618   -877     4727

 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    17   HIGHEST WIND DIRECTION    SE (140)
  HIGHEST GUST SPEED    22   HIGHEST GUST DIRECTION    SE (130)
  AVERAGE WIND SPEED     6.1


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    66          1100 PM
 LOWEST     33          1200 AM
 AVERAGE    50

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   54        81      1956
 MINIMUM TEMPERATURE (F)   35        17      1987
                                             1879


SUNRISE AND SUNSET
APRIL  3 2017.........SUNRISE   631 AM CDT   SUNSET   720 PM CDT
APRIL  4 2017.........SUNRISE   629 AM CDT   SUNSET   721 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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