490
CDUS43 KLOT 170631
CLICHI
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
130 AM CDT THU APR 17 2008
...................................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 16 2008
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)
YESTERDAY
MAXIMUM 73 204 PM 87 2002 58 15 62
MINIMUM 45 548 AM 18 1875 38 7 32
AVERAGE 59 48 11 47
PRECIPITATION (IN)
YESTERDAY 0.00 1.97 1921 0.13 -0.13 0.00
MONTH TO DATE 1.95 1.93 0.02 1.48
SINCE MAR 1 4.58 4.58 0.00 5.14
SINCE JAN 1 10.04 7.96 2.08 8.47
SNOWFALL (IN)
YESTERDAY 0.0 5.4 1961 0.1 -0.1 0.0
MONTH TO DATE T 1.6 -1.6 3.0
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
YESTERDAY 6 17 -11 18
MONTH TO DATE 311 311 0 401
SINCE MAR 1 1237 1169 68 1098
SINCE JUL 1 5928 6015 -87 5780
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 1 -1 6
SINCE JAN 1 0 1 -1 6
..............................................................
WIND (MPH)
HIGHEST WIND SPEED 37 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 46 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 21.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 62 500 AM
LOWEST 29 100 PM
AVERAGE 46
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 88 1976
MINIMUM TEMPERATURE (F) 38 17 1875
SUNRISE AND SUNSET
APRIL 17 2008.........SUNRISE 607 AM CDT SUNSET 735 PM CDT
APRIL 18 2008.........SUNRISE 606 AM CDT SUNSET 737 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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