316
CDUS43 KLOT 202137
CLICHI
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
431 PM CDT TUE MAY 20 2008
...................................
..THE CHICAGO-OHARE CLIMATE SUMMARY FOR MAY 20 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 66 159 PM 95 1977 71 -5 69
MINIMUM 47 101 AM 33 2002 49 -2 43
AVERAGE 57 60 -3 56
PRECIPITATION (IN)
TODAY 0.00 2.54 1975 0.11 -0.11 0.07
MONTH TO DATE 3.21 2.17 1.04 0.72
SINCE MAR 1 8.56 8.50 0.06 7.87
SINCE JAN 1 14.02 11.88 2.14 11.20
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 6 2 9
MONTH TO DATE 196 178 18 103
SINCE MAR 1 1583 1549 34 1343
SINCE JUL 1 6274 6395 -121 6025
COOLING
TODAY 0 2 -2 0
MONTH TO DATE 0 22 -22 29
SINCE MAR 1 0 32 -32 38
SINCE JAN 1 0 32 -32 38
..............................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 7.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 71 300 AM
LOWEST 29 200 PM
AVERAGE 50
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 92 1977
1934
MINIMUM TEMPERATURE (F) 49 31 2002
SUNRISE AND SUNSET
MAY 20 2008...........SUNRISE 526 AM CDT SUNSET 811 PM CDT
MAY 21 2008...........SUNRISE 525 AM CDT SUNSET 812 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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