998
CXUS53 KLOT 011644
CLMORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1044 AM CST SUN NOV 01 2026

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2026

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           88   10/12                          89  10/03
LOWEST            39   10/17                          34  10/24
AVG. MAXIMUM    70.0               62.7     7.3     66.1
AVG. MINIMUM    51.6               45.4     6.2     50.2
MEAN            60.8               54.0     6.8     58.2
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                2.7    -2.7        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       12.06   1954
 MINIMUM        0.18   1897
TOTALS          2.61               3.43   -0.82     2.67
DAILY AVG.      0.08               0.11   -0.03     0.09
DAYS >= .01        6               10.5    -4.5       MM
DAYS >= .10        3                6.3    -3.3       MM
DAYS >= .50        2                2.3    -0.3       MM
DAYS >= 1.00       1                0.7     0.3       MM
GREATEST
 24 HR. TOTAL   1.41   10/01 TO 10/01               1.35

SNOWFALL (INCHES)
RECORDS
 TOTAL           6.3   1989
TOTALS           0.0                0.2    -0.2      0.0
SINCE 7/1        0.0                0.2    -0.2       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL      MM                                 0.0

DEGREE DAYS
HEATING TOTAL    153                355    -202      259
 SINCE 7/1       180                440    -260       MM
COOLING TOTAL     32                 15      17       57
 SINCE 1/1      1145               1003     142       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.2
HIGHEST WIND SPEED/DIRECTION    33/350    DATE  10/16
HIGHEST GUST SPEED/DIRECTION    49/340    DATE  10/16

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.46
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       1
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      1
HAZE                      4

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

$$