Climatological Report (Daily)
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CDUS43 KLOT 040639
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
138 AM CDT MON MAY 4 2015


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 3 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         78    419 PM  92    1955  66     12       67
  MINIMUM         55    539 AM  30    2004  45     10       46
  AVERAGE         67                        55     12       57

PRECIPITATION (IN)
  YESTERDAY        0.42          1.59 1919   0.12   0.30     0.00
  MONTH TO DATE    0.42                      0.35   0.07     0.09
  SINCE MAR 1      4.39                      6.23  -1.84     4.64
  SINCE JAN 1      7.25                      9.75  -2.50     9.94

SNOWFALL (IN)
  YESTERDAY        0.0           1.3  1907   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE MAR 1      7.1                       6.8    0.3     13.7
  SINCE JUL 1     50.7                      36.6   14.1     82.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                        10    -10        8
  MONTH TO DATE   14                        32    -18       42
  SINCE MAR 1   1384                      1365     19     1555
  SINCE JUL 1   6564                      6099    465     6970

 COOLING
  YESTERDAY        2                         1      1        0
  MONTH TO DATE    2                         1      1        0
  SINCE MAR 1      2                        11     -9        1
  SINCE JAN 1      2                        11     -9        1
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION    NW (310)
  HIGHEST GUST SPEED    28   HIGHEST GUST DIRECTION     S (200)
  AVERAGE WIND SPEED     9.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           600 PM
 LOWEST     33          1200 PM
 AVERAGE    62

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   66        92      1952
 MINIMUM TEMPERATURE (F)   45        32      1954


SUNRISE AND SUNSET
MAY  4 2015...........SUNRISE   544 AM CDT   SUNSET   753 PM CDT
MAY  5 2015...........SUNRISE   543 AM CDT   SUNSET   754 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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