Climatological Report (Daily)
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CDUS43 KLOT 270636
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
136 AM CDT THU APR 27 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 26 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         74    153 PM  89    1986  63     11       68
  MINIMUM         60   1101 PM  27    2006  42     18       42
  AVERAGE         67                        53     14       55

PRECIPITATION (IN)
  YESTERDAY        0.22          1.76 1995   0.12   0.10     0.00
  MONTH TO DATE    3.02                      2.90   0.12     1.26
  SINCE MAR 1      7.03                      5.40   1.63     4.60
  SINCE JAN 1     11.42                      8.92   2.50     6.67

SNOWFALL (IN)
  YESTERDAY        0.0           0.8  1910   0.0    0.0      0.0
  MONTH TO DATE    0.0                       1.2   -1.2      1.1
  SINCE MAR 1      7.8                       6.8    1.0      3.7
  SINCE JUL 1     26.1                      36.3  -10.2     31.2
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                        13    -13       10
  MONTH TO DATE  269                       446   -177      440
  SINCE MAR 1   1054                      1287   -233     1105
  SINCE JUL 1   4979                      6021  -1042     5113

 COOLING
  YESTERDAY        2                         0      2        0
  MONTH TO DATE   12                         0     12        7
  SINCE MAR 1     12                         1     11        7
  SINCE JAN 1     12                         1     11        7
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED    11.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90          1100 PM
 LOWEST     57          1100 AM
 AVERAGE    74

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   64        87      1986
 MINIMUM TEMPERATURE (F)   43        29      1945


SUNRISE AND SUNSET
APRIL 27 2017.........SUNRISE   553 AM CDT   SUNSET   746 PM CDT
APRIL 28 2017.........SUNRISE   551 AM CDT   SUNSET   747 PM CDT


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




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