645
CDUS43 KLOT 162146
CLICHI
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT FRI MAY 16 2008
...................................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 16 2008
VALID TODAY AS OF 0400 PM LOCAL TIME.
CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1871 TO 2008
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 73 323 PM 94 1962 70 3 66
MINIMUM 40 315 AM 33 1997 47 -7 44
AVERAGE 57 59 -2 55
PRECIPITATION (IN)
TODAY 0.00 1.38 1974 0.10 -0.10 0.14
MONTH TO DATE 3.09 1.75 1.34 0.65
SINCE MAR 1 8.44 8.08 0.36 7.80
SINCE JAN 1 13.90 11.46 2.44 11.13
SNOWFALL (IN)
TODAY 0.0 0.0 MM 0.0 0.0 0.0
MONTH TO DATE 0.0 T 0.0 0.0
SINCE MAR 1 7.9 7.6 0.3 5.3
SINCE JUL 1 60.3 38.0 22.3 35.6
DEGREE DAYS
HEATING
TODAY 8 7 1 10
MONTH TO DATE 156 152 4 74
SINCE MAR 1 1543 1523 20 1314
SINCE JUL 1 6234 6369 -135 5996
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 0 16 -16 26
SINCE MAR 1 0 26 -26 35
SINCE JAN 1 0 26 -26 35
..............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 6.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 200 AM
LOWEST 34 200 PM
AVERAGE 60
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 94 1962
MINIMUM TEMPERATURE (F) 48 36 2002
1973
SUNRISE AND SUNSET
MAY 16 2008...........SUNRISE 530 AM CDT SUNSET 807 PM CDT
MAY 17 2008...........SUNRISE 529 AM CDT SUNSET 808 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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