840
CDUS43 KLOT 130631
CLICHI
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
130 AM CDT TUE MAY 13 2008
...................................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 12 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 56 349 PM 92 1956 69 -13 64
MINIMUM 40 453 AM 31 1981 46 -6 46
AVERAGE 48 57 -9 55
PRECIPITATION (IN)
YESTERDAY 0.00 2.67 1935 0.11 -0.11 0.00
MONTH TO DATE 2.99 1.33 1.66 0.13
SINCE MAR 1 8.34 7.66 0.68 7.28
SINCE JAN 1 13.80 11.04 2.76 10.61
SNOWFALL (IN)
YESTERDAY 0.0 T 1923 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
YESTERDAY 17 8 9 10
MONTH TO DATE 115 121 -6 55
SINCE MAR 1 1502 1492 10 1295
SINCE JUL 1 6193 6338 -145 5977
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 12 -12 14
SINCE MAR 1 0 22 -22 23
SINCE JAN 1 0 22 -22 23
..............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (110)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 7.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 200 AM
LOWEST 55 300 PM
AVERAGE 72
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 89 1991
1956
MINIMUM TEMPERATURE (F) 46 34 1996
1888
SUNRISE AND SUNSET
MAY 13 2008...........SUNRISE 533 AM CDT SUNSET 804 PM CDT
MAY 14 2008...........SUNRISE 532 AM CDT SUNSET 805 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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