Climatological Report (Daily)
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000
CDUS43 KLOT 150649
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
149 AM CDT SAT APR 15 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 14 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         66    258 PM  85    2003  58      8       61
  MINIMUM         47    604 AM  23    1943  38      9       37
                                      1907
  AVERAGE         57                        48      9       49

PRECIPITATION (IN)
  YESTERDAY        0.06          1.21 1949   0.11  -0.05     0.00
  MONTH TO DATE    2.11                      1.52   0.59     0.69
  SINCE MAR 1      6.12                      4.02   2.10     4.03
  SINCE JAN 1     10.51                      7.54   2.97     6.10

SNOWFALL (IN)
  YESTERDAY        0.0           2.2  1980   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.9   -0.9      1.1
  SINCE MAR 1      7.8                       6.5    1.3      3.7
  SINCE JUL 1     26.1                      36.0   -9.9     31.2
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        8                        17     -9       16
  MONTH TO DATE  192                       269    -77      351
  SINCE MAR 1    977                      1110   -133     1016
  SINCE JUL 1   4902                      5844   -942     5024

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


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     S (160)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION    SE (150)
  AVERAGE WIND SPEED     9.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84           800 PM
 LOWEST     48           300 PM
 AVERAGE    66

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   59        88      2002
 MINIMUM TEMPERATURE (F)   39        25      1943


SUNRISE AND SUNSET
APRIL 15 2017.........SUNRISE   611 AM CDT   SUNSET   733 PM CDT
APRIL 16 2017.........SUNRISE   609 AM CDT   SUNSET   734 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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