Climatological Report (Monthly)
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CXUS53 KLOT 011357
CLMORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
837 AM CDT SUN MAY 1 2016

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF APRIL 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              91   04/22/1980
                        04/30/1942
 LOW                7   04/07/1982
HIGHEST            83   04/25        59      24       78  04/17
                        04/18
LOWEST             22   04/09        39     -17       28  04/04
AVG. MAXIMUM     57.4              59.0    -1.6     60.0
AVG. MINIMUM     38.1              38.8    -0.7     38.8
MEAN             47.8              48.9    -1.1     49.4
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      7               6.3     0.7        4
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.68   2013
 MINIMUM         0.14   1899
TOTALS           2.80              3.38   -0.58     2.87
DAILY AVG.       0.09              0.11   -0.02     0.10
DAYS >= .01        14              12.0     2.0        9
DAYS >= .10         7               6.4     0.6        6
DAYS >= .50         1               2.4    -1.4        1
DAYS >= 1.00        0               0.8    -0.8        1
GREATEST
 24 HR. TOTAL    0.91   04/27 TO 04/28

SNOWFALL (INCHES)
RECORDS
 TOTAL           13.6   1938
 SNOW DEPTH         2   MM
TOTALS            1.1               1.2    -0.1        T
SINCE 7/1        31.2              36.6    -5.4     50.7
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.3    -0.3        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.7   MM

DEGREE_DAYS
HEATING TOTAL     517               493      24      460
 SINCE 7/1       5190              6067    -877     6550
COOLING TOTAL       7                 9      -2        0
 SINCE 1/1          7                10      -3        0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.8
HIGHEST WIND SPEED/DIRECTION    43/330    DATE  04/02
HIGHEST GUST SPEED/DIRECTION    54/290    DATE  04/02

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            6
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY         13

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       8
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       1
HEAVY SNOW                2     SNOW                       3
LIGHT SNOW                6     SLEET                      1
FOG                      15     FOG W/VIS <= 1/4 MILE      0
HAZE                      7

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

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