Climatological Report (Monthly)
Issued by NWS

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CXUS53 KLOT 021551
CLMORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1048 AM CDT FRI SEP 2 2016

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2016

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            92   08/11        MM      MM       92  08/15
LOWEST             56   08/22        MM      MM       51  08/27
AVG. MAXIMUM     84.3              81.9     2.4     80.9
AVG. MINIMUM     67.4              62.9     4.5     62.6
MEAN             75.8              72.4     3.4     71.8
DAYS MAX >= 90      3               3.6    -0.6        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        17.10   1987
 MINIMUM         0.18   1893
TOTALS           4.26              4.90   -0.64     2.16
DAILY AVG.       0.14              0.16   -0.02     0.07
DAYS >= .01        13               9.8     3.2        7
DAYS >= .10         8               6.7     1.3        6
DAYS >= .50         3               2.8     0.2        2
DAYS >= 1.00        0               1.5    -1.5        0
GREATEST
 24 HR. TOTAL    0.98   08/26 TO 08/27

DEGREE_DAYS
HEATING TOTAL       0                 9      -9        5
 SINCE 7/1          0                13     -13       18
COOLING TOTAL     343               238     105      224
 SINCE 1/1        965               740     225      641
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.2
HIGHEST WIND SPEED/DIRECTION    29/280    DATE  08/20
HIGHEST GUST SPEED/DIRECTION    37/300    DATE  08/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             20
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                      10
LIGHT RAIN               15     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      0
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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