029
CXUS53 KLOT 011319
CLMMDW

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
819 AM CDT TUE OCT 01 2024

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

...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1928 TO 2024

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            102   09/15/1939
 LOW              29   09/28/1942
HIGHEST           93   09/21                          93  09/03
                                                          09/04
LOWEST            49   09/08                          51  09/14
AVG. MAXIMUM    80.7               76.3     4.4     76.8
AVG. MINIMUM    62.7               58.8     3.9     60.8
MEAN            71.7               67.5     4.2     68.8
DAYS MAX >= 90     4                2.2     1.8        3
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       14.17   1961
 MINIMUM        0.01   1979
TOTALS          1.89               2.77   -0.88     3.60
DAILY AVG.      0.06               0.09   -0.03     0.12
DAYS >= .01        5                8.9    -3.9       12
DAYS >= .10        3                5.4    -2.4        5
DAYS >= .50        2                1.7     0.3        3
DAYS >= 1.00       0                0.5    -0.5        2
GREATEST
 24 HR. TOTAL   0.96   09/23 TO 09/24               1.30

DEGREE DAYS
HEATING TOTAL     10                 59     -49       15
 SINCE 7/1        10                 63     -53       MM
COOLING TOTAL    219                136      83      137
 SINCE 1/1      1342               1092     250       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.0
HIGHEST WIND SPEED/DIRECTION    30/030    DATE  09/27
HIGHEST GUST SPEED/DIRECTION    41/020    DATE  09/27

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           10
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     57

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       1
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       5     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

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

$$