...THE CHICAGO-OHARE CLIMATE SUMMARY FOR DECEMBER 20 2013...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2013
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
..................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 36 344 AM 67 1877 33 3 49
MINIMUM 33 1159 PM -9 1963 19 14 33
AVERAGE 35 26 9 41
PRECIPITATION (IN)
YESTERDAY 0.31 1.67 1895 0.06 0.25 1.26
MONTH TO DATE 1.07 1.58 -0.51 2.18
SINCE DEC 1 1.07 1.58 -0.51 2.18
SINCE JAN 1 41.22 36.22 5.00 26.88
SNOWFALL (IN)
YESTERDAY 0.0 11.0 1960 0.3 -0.3 0.2
2002
MONTH TO DATE 9.3 4.9 4.4 0.2
SINCE DEC 1 9.3 4.9 4.4 0.2
SINCE JUL 1 10.2 6.4 3.8 0.2
SNOW DEPTH 1
DEGREE DAYS
HEATING
YESTERDAY 30 39 -9 24
MONTH TO DATE 811 717 94 483
SINCE DEC 1 811 717 94 483
SINCE JUL 1 2094 1973 121 1733
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 933 843 90 1324
..................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (20)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 9.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 200 AM
LOWEST 89 200 AM
AVERAGE 89
..........................................................
THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 33 62 1967
MINIMUM TEMPERATURE (F) 19 -14 1989
SUNRISE AND SUNSET
DECEMBER 21 2013......SUNRISE 716 AM CST SUNSET 423 PM CST
DECEMBER 22 2013......SUNRISE 717 AM CST SUNSET 424 PM CST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
000
CDUS43 KLOT 210639
CLIORD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1237 AM CST SAT DEC 21 2013
CHICAGO O'HARE CURRENT AND HISTORY (3-DAY) ...
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