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367
CXUS53 KLOT 011137
CLMORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
627 AM CDT MON SEP 1 2014

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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2014

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            88   08/24                         96  08/30
                        08/25                             08/27
LOWEST             52   08/15                         55  08/16
                                                          08/15
AVG. MAXIMUM     82.1              81.9     0.2     82.7
AVG. MINIMUM     65.3              62.9     2.4     63.3
MEAN             73.7              72.4     1.3     73.0
DAYS MAX >= 90      0               3.6    -3.6        4
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           7.30              4.90    2.40     1.69
DAILY AVG.       0.24              0.16    0.08     0.05
DAYS >= .01        12               9.8     2.2        9
DAYS >= .10         8               6.7     1.3        4
DAYS >= .50         4               2.8     1.2        1
DAYS >= 1.00        2               1.5     0.5        0
GREATEST
 24 HR. TOTAL    2.76   08/04 TO 08/04

DEGREE_DAYS
HEATING TOTAL       0                 9      -9        2
 SINCE 7/1          5                13      -8       11
COOLING TOTAL     277               238      39      257
 SINCE 1/1        715               740     -25      765
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.7
HIGHEST WIND SPEED/DIRECTION    31/330    DATE  08/26
HIGHEST GUST SPEED/DIRECTION    37/330    DATE  08/26

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            2
NUMBER OF DAYS PC             20
NUMBER OF DAYS CLOUDY          9

AVERAGE RH (PERCENT)     66

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             10     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                       6
LIGHT RAIN               15     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      1
HAZE                     10

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

$$






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