Climatological Report (Monthly)
Issued by NWS

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CXUS53 KLOT 011149
CLMORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
630 AM CDT WED JUN 1 2016

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF MAY 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              98   05/31/1934
 LOW               27   05/02/1875
HIGHEST            87   05/30                         83  05/07
LOWEST             35   05/15                         38  05/01
AVG. MAXIMUM     70.1              70.0     0.1     70.0
AVG. MINIMUM     49.4              48.3     1.1     50.7
MEAN             59.8              59.1     0.7     60.4
DAYS MAX >= 90      0               0.5    -0.5        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.3    -0.3        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.59   1945
 MINIMUM         0.30   1992
TOTALS           5.43              3.68    1.75     4.66
DAILY AVG.       0.18              0.12    0.06     0.15
DAYS >= .01        12              11.6     0.4       15
DAYS >= .10        11               7.2     3.8       11
DAYS >= .50         6               2.2     3.8        3
DAYS >= 1.00        0               0.8    -0.8        0
GREATEST
 24 HR. TOTAL    1.38   05/09 TO 05/10

DEGREE_DAYS
HEATING TOTAL     225               225       0      187
 SINCE 7/1       5415              6292    -877     6737
COOLING TOTAL      67                44      23       53
 SINCE 1/1         74                54      20       53
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.7
HIGHEST WIND SPEED/DIRECTION    32/220    DATE  05/25
HIGHEST GUST SPEED/DIRECTION    41/030    DATE  05/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             15
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     64

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              8     MIXED PRECIP               0
HEAVY RAIN                9     RAIN                       9
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      12     FOG W/VIS <= 1/4 MILE      3
HAZE                      3

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

&&

RECORDS SET IN MAY 2016
- RECORD DAILY LOW TEMPERATURE OF 35 DEGREES TIED ON MAY 15TH

$$





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