Climatological Report (Monthly)
Issued by NWS

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CXUS53 KLOT 011628 CCA
CLMORD

CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE CHICAGO IL
1101 AM CDT FRI NOV 1 2019

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2019

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            86   10/01        63      23       88  10/03
LOWEST             25   10/31        43     -18       28  10/21
AVG. MAXIMUM     58.7              62.3    -3.6     60.7
AVG. MINIMUM     43.1              42.8     0.3     44.7
MEAN             50.9              52.5    -1.6     52.7
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      2               3.5    -1.5        3
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        12.06   1954
 MINIMUM         0.18   1897
TOTALS           6.76              3.15    3.61     4.79
DAILY AVG.       0.22              0.10    0.12     0.15
DAYS >= .01        13              10.2     2.8       15
DAYS >= .10         9               5.9     3.1       10
DAYS >= .50         5               2.1     2.9        3
DAYS >= 1.00        2               0.6     1.4        2
GREATEST
 24 HR. TOTAL    2.18   10/26 TO 10/26

SNOWFALL (INCHES)
RECORDS
 TOTAL            6.3   1989
TOTALS            4.6               0.2     4.4        T
SINCE 7/1         4.6               0.2     4.4        T
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         2               0.1     1.9
GREATEST
 SNOW DEPTH         1   10/30
 24 HR TOTAL      3.4   10/31 TO 10/31

DEGREE_DAYS
HEATING TOTAL     440               397      43      403
 SINCE 7/1        451               515     -64      459
COOLING TOTAL      12                11       1       31
 SINCE 1/1        960               843     117     1290
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.6
RESULTANT WIND SPEED/DIRECTION   3/253
HIGHEST WIND SPEED/DIRECTION    32/210    DATE  10/21
HIGHEST GUST SPEED/DIRECTION    54/230    DATE  10/21


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                       6
LIGHT RAIN               17     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW                2     SLEET                      1
FOG                      14     FOG W/VIS <= 1/4 MILE      1
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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