Climatological Report (Monthly)
Issued by NWS

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CXUS53 KLOT 011319
CLMORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
759 AM CDT SAT NOV 1 2014

...................................
...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              94   10/06/1963
 LOW               14   10/25/1887

HIGHEST            77   10/27        63      14       80  10/05
LOWEST             32   10/30        43     -11       29  10/27
                                                          10/25
                                                          10/22
AVG. MAXIMUM     60.6              62.3    -1.7     62.4
AVG. MINIMUM     43.4              42.8     0.6     43.8
MEAN             52.0              52.5    -0.5     53.1

DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      1               3.5    -2.5        5
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        12.06   1954
 MINIMUM         0.18   1897

TOTALS           2.48              3.15   -0.67     3.12

DAILY AVG.       0.08              0.10   -0.02     0.10
DAYS >= .01        12              10.2     1.8       10
DAYS >= .10         4               5.9    -1.9        6
DAYS >= .50         3               2.1     0.9        3
DAYS >= 1.00        0               0.6    -0.6        1
GREATEST
 24 HR. TOTAL    1.00   10/02 TO 10/03

SNOWFALL (INCHES)
RECORDS
 TOTAL            6.3   1989

TOTALS            0.1               0.2    -0.1        T

SINCE 7/1         0.1               0.2    -0.1        T
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.1    -0.1        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.1   10/31 TO 10/31

DEGREE_DAYS
HEATING TOTAL     396               397      -1      385
 SINCE 7/1        507               515      -8      464
COOLING TOTAL       3                11      -8       25
 SINCE 1/1        799               843     -44      933
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.9
HIGHEST WIND SPEED/DIRECTION    38/340    DATE  10/31
HIGHEST GUST SPEED/DIRECTION    53/350    DATE  10/31

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            5
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY         14

AVERAGE RH (PERCENT)     69

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       3
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                1     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

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

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