Climatological Report (Daily)
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000
CDUS43 KLOT 160639
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
138 AM CDT MON APR 16 2018


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR APRIL 15 2018...

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


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         37    305 PM  88    2002  59    -22       82
  MINIMUM         28   1159 PM  25    1943  39    -11       61
  AVERAGE         33                        49    -16       72

PRECIPITATION (IN)
  YESTERDAY        0.74          1.74 1884   0.12   0.62     0.09
  MONTH TO DATE    2.27                      1.64   0.63     2.20
  SINCE MAR 1      4.01                      4.14  -0.13     6.21
  SINCE JAN 1     10.19                      7.66   2.53    10.60

SNOWFALL (IN)
  YESTERDAY        0.2           1.5  1980   0.1    0.1      0.0
  MONTH TO DATE    2.4                       1.0    1.4      0.0
  SINCE MAR 1      5.0                       6.6   -1.6      7.8
  SINCE JUL 1     35.3                      36.1   -0.8     26.1
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       32                        17     15        0
  MONTH TO DATE  422                       286    136      192
  SINCE MAR 1   1289                      1127    162      977
  SINCE JUL 1   5747                      5861   -114     4902

 COOLING
  YESTERDAY        0                         0      0        7
  MONTH TO DATE    0                         0      0        9
  SINCE MAR 1      0                         1     -1        9
  SINCE JAN 1      0                         1     -1        9
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION    NE (60)
  HIGHEST GUST SPEED    30   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED    13.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96          1100 AM
 LOWEST     85          1000 PM
 AVERAGE    91

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   59        87      2002
 MINIMUM TEMPERATURE (F)   39        18      1875


SUNRISE AND SUNSET
APRIL 16 2018.........SUNRISE   610 AM CDT   SUNSET   734 PM CDT
APRIL 17 2018.........SUNRISE   608 AM CDT   SUNSET   735 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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