Climatological Report (Seasonal)
Issued by NWS

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CXUS53 KLOT 011418
CLSORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
910 AM CDT MON JUN 1 2015

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2015 TO 5/31/2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              98   05/31/1934
 LOW              -12   03/04/1873
HIGHEST            83   05/07        MM      MM       89
LOWEST              0   03/06        MM      MM       -2
AVG. MAXIMUM     58.1              58.5    -0.4     57.0
AVG. MINIMUM     38.6              38.8    -0.2     36.7
MEAN             48.4              48.6    -0.2     46.9
DAYS MAX >= 90      0
DAYS MAX <= 32      6
DAYS MIN <= 32     26
DAYS MIN <= 0       1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        17.51   1983
 MINIMUM         2.73   1887
TOTALS           8.63              9.56   -0.93
DAYS >= .01        31
DAYS >= .10        20
DAYS >= .50         5
DAYS >= 1.00        1

SNOWFALL (INCHES)
TOTALS            7.1               6.8     0.3     13.7

DEGREE_DAYS
HEATING TOTAL    1557              1558      -1
 SINCE 7/1       6737              6292     445
COOLING TOTAL      53                53       0
 SINCE 1/1         53                54      -1
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              10.2
HIGHEST WIND SPEED/DIRECTION    38/270    DATE  04/21
HIGHEST GUST SPEED/DIRECTION    52/280    DATE  04/21


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                      13
LIGHT RAIN               37     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                1     SNOW                       3
LIGHT SNOW                6     SLEET                      1
FOG                      43     FOG W/VIS <= 1/4 MILE      8
HAZE                     23

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

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