Climatological Report (Monthly)
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051
CXUS53 KLOT 011211
CLMMDW


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
643 AM CDT FRI MAY 1 2015

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

...THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1928 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              92   04/30/1942
 LOW               10   04/07/1982
HIGHEST            80   04/17                         80
LOWEST             31   04/04                         27
AVG. MAXIMUM     62.4              59.2     3.2     59.6
AVG. MINIMUM     42.5              41.7     0.8     40.4
MEAN             52.5              50.4     2.1     50.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.33   1947
 MINIMUM         0.45   1971
TOTALS           2.94              3.64   -0.70     3.25

DEGREE_DAYS
HEATING TOTAL     370               448     -78      447
 SINCE 7/1       5918              5771     147     6646
COOLING TOTAL       0                12     -12        5
 SINCE 1/1          0                13     -13        5
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              10.8
HIGHEST WIND SPEED/DIRECTION    36/260    DATE  04/21
HIGHEST GUST SPEED/DIRECTION    50/250    DATE  04/09

AVERAGE RH (PERCENT)     57


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

$$




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