355
CXUS53 KLOT 011348
CLMORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
848 AM CDT SUN SEP 01 2024

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2024

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            102   08/05/1918
 LOW              42   08/28/1986
HIGHEST           99R  08/27                         100  08/24
LOWEST            55   08/22                          54  08/31
AVG. MAXIMUM    83.8               82.5     1.3     83.0
AVG. MINIMUM    65.9               65.1     0.8     65.5
MEAN            74.8               73.8     1.0     74.3
DAYS MAX >= 90     7                4.0     3.0        5
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       17.10   1987
 MINIMUM        0.18   1893
TOTALS          2.60               4.25   -1.65     1.33
DAILY AVG.      0.08               0.14   -0.06     0.04
DAYS >= .01        9                9.4    -0.4        5
DAYS >= .10        8                6.5     1.5        4
DAYS >= .50        2                2.7    -0.7        1
DAYS >= 1.00       0                1.2    -1.2        0
GREATEST
 24 HR. TOTAL   0.82   08/27 TO 08/28               1.00

DEGREE DAYS
HEATING TOTAL      0                  4      -4        2
 SINCE 7/1         0                  2      -2       MM
COOLING TOTAL    312                277      35      299
 SINCE 1/1       986                872     114       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.8
HIGHEST WIND SPEED/DIRECTION    39/020    DATE  08/27
HIGHEST GUST SPEED/DIRECTION    52/020    DATE  08/27

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.53
NUMBER OF DAYS FAIR            6
NUMBER OF DAYS PC             19
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              7     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       2
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      10     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.

RECORDS SET OR TIED DURING AUGUST 2024:
- RECORD HIGH MINIMUM TEMPERATURE OF 74 DEGREES TIED ON 25TH.
- RECORD HIGH MINIMUM TEMPERATURE OF 79 DEGREES SET ON 26TH.
- RECORD HIGH TEMPERATURE OF 99 DEGREES SET ON 27TH.

$$