Climatological Report (Daily)
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CDUS43 KLOT 010632
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
131 AM CDT TUE MAY 1 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 30 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         80    456 PM  91    1942  65     15       47
  MINIMUM         40    459 AM  30    1873  44     -4       42
  AVERAGE         60                        54      6       45

PRECIPITATION (IN)
  YESTERDAY        0.00          2.22 2003   0.12  -0.12     1.32
  MONTH TO DATE    2.72                      3.38  -0.66     6.43
  SINCE MAR 1      4.46                      5.88  -1.42    10.44
  SINCE JAN 1     10.64                      9.40   1.24    14.83

SNOWFALL (IN)
  YESTERDAY        0.0           0.1  1907   0.0    0.0      0.0
  MONTH TO DATE    3.2                       1.2    2.0      0.0
  SINCE MAR 1      5.8                       6.8   -1.0      7.8
  SINCE JUL 1     36.1                      36.3   -0.2     26.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        5                        11     -6       20
  MONTH TO DATE  705                       493    212      339
  SINCE MAR 1   1572                      1333    239     1124
  SINCE JUL 1   6030                      6067    -37     5049

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         9     -9       12
  SINCE MAR 1      0                        10    -10       12
  SINCE JAN 1      0                        10    -10       12
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     S (200)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED    12.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    43          1200 AM
 LOWEST     14           200 PM
 AVERAGE    29

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   65        90      1951
 MINIMUM TEMPERATURE (F)   44        30      1943


SUNRISE AND SUNSET
MAY  1 2018...........SUNRISE   548 AM CDT   SUNSET   750 PM CDT
MAY  2 2018...........SUNRISE   546 AM CDT   SUNSET   752 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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