Climatological Report (Seasonal)
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CXUS53 KLOT 011405
CLSORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
902 AM CDT FRI JUN 1 2018

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2018 TO 5/31/2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2018

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            97   05/27                         87
LOWEST             19   03/13                         16
AVG. MAXIMUM     57.0              58.5    -1.5     59.5
AVG. MINIMUM     39.1              38.8     0.3     41.2
MEAN             48.1              48.6    -0.5     50.3
DAYS MAX >= 90      3
DAYS MAX <= 32      0
DAYS MIN <= 32     39
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        17.51   1983
 MINIMUM         2.73   1887
TOTALS          12.67              9.56    3.11
DAYS >= .01        35
DAYS >= .10        20
DAYS >= .50         9
DAYS >= 1.00        3

SNOWFALL (INCHES)
TOTALS            5.8               6.8    -1.0      7.8

DEGREE_DAYS
HEATING TOTAL    1677              1558     119
 SINCE 7/1         MM              6292      MM
COOLING TOTAL     149                53      96
 SINCE 1/1        149                54      95
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              9.9
HIGHEST WIND SPEED/DIRECTION    36/300    DATE  05/02
HIGHEST GUST SPEED/DIRECTION    47/260    DATE  05/04


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              9     MIXED PRECIP               0
HEAVY RAIN               10     RAIN                      15
LIGHT RAIN               33     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                1     SNOW                       6
LIGHT SNOW               13     SLEET                      3
FOG                      37     FOG W/VIS <= 1/4 MILE      3
HAZE                     22

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

$$




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