655
CDUS43 KLOT 172142
CLICHI
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
433 PM CDT SAT MAY 17 2008
...................................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 17 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 73 208 PM 94 1962 70 3 62
MINIMUM 60 558 AM 36 2002 48 12 43
1973
AVERAGE 67 59 8 53
PRECIPITATION (IN)
TODAY T 1.38 1986 0.10 -0.10 0.00
1969
MONTH TO DATE 3.09 1.85 1.24 0.65
SINCE MAR 1 8.44 8.18 0.26 7.80
SINCE JAN 1 13.90 11.56 2.34 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 0 7 -7 12
MONTH TO DATE 156 159 -3 86
SINCE MAR 1 1543 1530 13 1326
SINCE JUL 1 6234 6376 -142 6008
COOLING
TODAY 2 1 1 0
MONTH TO DATE 2 17 -15 26
SINCE MAR 1 2 27 -25 35
SINCE JAN 1 2 27 -25 35
..............................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 16.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 60 1200 AM
LOWEST 24 200 PM
AVERAGE 42
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 93 1962
MINIMUM TEMPERATURE (F) 48 34 2002
SUNRISE AND SUNSET
MAY 17 2008...........SUNRISE 529 AM CDT SUNSET 808 PM CDT
MAY 18 2008...........SUNRISE 528 AM CDT SUNSET 809 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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