Climatological Report (Monthly)
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CXUS53 KLOT 011626
CLMORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1024 AM CST FRI DEC 1 2017

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017

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            63   11/24        48      15       75  11/01
LOWEST             18   11/10        32     -14       22  11/21
AVG. MAXIMUM     46.9              48.2    -1.3     55.3
AVG. MINIMUM     32.5              32.4     0.1     38.3
MEAN             39.7              40.3    -0.6     46.8
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      1               2.0    -1.0        0
DAYS MIN <= 32     17              14.0     3.0        8
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.22   1985
 MINIMUM         0.31   1904
TOTALS           1.75              3.15   -1.40     1.69
DAILY AVG.       0.06              0.11   -0.05     0.06
DAYS >= .01         9              10.8    -1.8        8
DAYS >= .10         6               6.0     0.0        4
DAYS >= .50         1               2.0    -1.0        1
DAYS >= 1.00        0               0.8    -0.8        0
GREATEST
 24 HR. TOTAL    0.54   11/18 TO 11/18           11/27 TO 11/28
                                                          11/19 TO 11/19
                                                          11/19 TO 11/19

SNOWFALL (INCHES)
RECORDS
 TOTAL           14.8   1940
TOTALS            0.1               1.2    -1.1        T
SINCE 7/1         0.1               1.4    -1.3        T
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.4    -0.4
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL      0.1   11/10 TO 11/10

DEGREE_DAYS
HEATING TOTAL     750               741       9      540
 SINCE 7/1       1043              1256    -213      829
COOLING TOTAL       0                 0       0        3
 SINCE 1/1        991               843     148     1157
..........................................................

WIND (MPH)
AVERAGE WIND SPEED              10.2
RESULTANT WIND SPEED/DIRECTION   3/261
HIGHEST WIND SPEED/DIRECTION    30/290    DATE  11/15
HIGHEST GUST SPEED/DIRECTION    40/300    DATE  11/15


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       4
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                1     SLEET                      1
FOG                      10     FOG W/VIS <= 1/4 MILE      1
HAZE                      8

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

$$



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