Climatological Report (Monthly)
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CXUS53 KLOT 011250 CCA
CLMORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
744 AM CDT SUN JUL 1 2012

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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR THE MONTH OF JUNE 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2012

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             104   06/20/1988
                        06/20/1953
 LOW               35   06/04/1945
HIGHEST           100   06/28        80      20       96  06/07
LOWEST             49   06/02        58      -9       50  06/12
                        06/01                             06/09
AVG. MAXIMUM     85.5              79.7     5.8     79.4
AVG. MINIMUM     62.4              58.1     4.3     59.5
MEAN             74.0              68.9     5.1     69.5
DAYS MAX >= 90     12               3.0     9.0        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        10.58   1892
 MINIMUM         0.12   1922
TOTALS           0.90              3.45   -2.55     3.39
DAILY AVG.       0.03              0.12   -0.09     0.11
DAYS >= .01         6              10.2    -4.2       14
DAYS >= .10         3               5.9    -2.9        7
DAYS >= .50         0               2.4    -2.4        3
DAYS >= 1.00        0               0.9    -0.9        0
GREATEST
 24 HR. TOTAL    0.42   06/16 TO 06/17
                        06/29 TO 06/29
DEGREE_DAYS
HEATING TOTAL      14                48     -34       32
 SINCE 7/1       4907              6340   -1433     6517
COOLING TOTAL     291               165     126      171
 SINCE 1/1        462               219     243      237
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.5
HIGHEST WIND SPEED/DIRECTION    36/200    DATE  06/18
HIGHEST GUST SPEED/DIRECTION    45/210    DATE  06/18

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM

AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC             15
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     53

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       3
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       3     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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