Climatological Report (Monthly)
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CXUS53 KLOT 011439
CLMORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
831 AM CST SAT DEC 1 2012

...................................

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2012

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              81   11/01/1950
 LOW               -2   11/24/1950
                        11/29/1872
HIGHEST            70   11/11                         70  11/13
LOWEST             17   11/27                         24  11/17
AVG. MAXIMUM     49.0              48.2     0.8     52.4
AVG. MINIMUM     32.0              32.4    -0.4     37.4
MEAN             40.5              40.3     0.2     44.9
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      1               2.0    -1.0        0
DAYS MIN <= 32     16              14.0     2.0        7
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.22   1985
 MINIMUM         0.31   1904
TOTALS           0.95              3.15   -2.20     3.44
DAILY AVG.       0.03              0.11   -0.08     0.11
DAYS >= .01         6              10.8    -4.8       10
DAYS >= .10         4               6.0    -2.0        5
DAYS >= .50         0               2.0    -2.0        2
DAYS >= 1.00        0               0.8    -0.8        2
GREATEST
 24 HR. TOTAL    0.38   11/10 TO 11/11

SNOWFALL (INCHES)
RECORDS
 TOTAL           14.8   1940
TOTALS              T               1.2    -1.2        T
SINCE 7/1           T               1.4    -1.4        T
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.4    -0.4        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL        T   11/12,11/23

DEGREE_DAYS
HEATING TOTAL     728               741     -13      595
 SINCE 7/1       1250              1256      -6     1063
COOLING TOTAL       0                 0       0        0
 SINCE 1/1       1324               843     481     1036
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.4
HIGHEST WIND SPEED/DIRECTION    40/190    DATE  11/11
HIGHEST GUST SPEED/DIRECTION    58/180    DATE  11/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             16
NUMBER OF DAYS CLOUDY         10

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       2
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                2     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      1
HAZE                     16

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

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