Climatological Report (Monthly)
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000
CXUS53 KLOT 011526
CLMORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1026 AM CDT SAT OCT 01 2022

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2022...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2022

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            101   09/02/1953
                       09/01/1953
 LOW              29   09/23/1995
                       09/30/1984
                       09/28/1942
HIGHEST           88   09/01                          89  09/17
                       09/03
                                                          09/19
LOWEST            44   09/29                          50  09/25
AVG. MAXIMUM    76.0               75.5     0.5     79.8
AVG. MINIMUM    58.8               57.1     1.7     60.7
MEAN            67.4               66.3     1.1     70.3
DAYS MAX >= 90     0                1.6    -1.6        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.1    -0.1        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       14.17   1961
 MINIMUM        0.01   1979
TOTALS          2.20               3.19   -0.99     1.23
DAILY AVG.      0.07               0.11   -0.04     0.04
DAYS >= .01        7                8.5    -1.5        6
DAYS >= .10        3                5.6    -2.6        4
DAYS >= .50        1                1.9    -0.9        0
DAYS >= 1.00       1                0.8     0.2        0
GREATEST
 24 HR. TOTAL   1.45   09/11 TO 09/11               0.45

DEGREE DAYS
HEATING TOTAL     75                 77      -2       16
 SINCE 7/1        75                 82      -7       16
COOLING TOTAL    154                116      38      183
 SINCE 1/1      1155                988     167     1257
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.3
HIGHEST WIND SPEED/DIRECTION    30/350    DATE  09/25
HIGHEST GUST SPEED/DIRECTION    35/350    DATE  09/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.56
NUMBER OF DAYS FAIR            5
NUMBER OF DAYS PC             18
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       3
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       7     FOG W/VIS <= 1/4 MILE      0
HAZE                      2

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

$$


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