Climatological Report (Daily)
Issued by NWS Chicago, IL

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830
CDUS43 KLOT 170633
CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1232 AM CST WED JAN 17 2018


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

...THE ROCKFORD IL CLIMATE SUMMARY FOR JANUARY 16 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1905 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         20    404 PM  53    1933  29     -9       37
  MINIMUM          1   1158 PM -25    2009  13    -12       30
  AVERAGE         11                        21    -10       34

PRECIPITATION (IN)
  YESTERDAY        T             1.01 2017   0.05  -0.05     1.01
  MONTH TO DATE    0.32                      0.76  -0.44     1.39
  SINCE DEC 1      0.81                      2.74  -1.93     3.27
  SINCE JAN 1      0.32                      0.76  -0.44     1.39

SNOWFALL (IN)
  YESTERDAY        0.1           9.5  1924   0.3   -0.2       T
  MONTH TO DATE    5.9                       5.4    0.5      0.2
  SINCE DEC 1     10.6                      16.7   -6.1     16.3
  SINCE JUL 1     10.8                      18.5   -7.7     16.3
  SNOW DEPTH       5

DEGREE DAYS
 HEATING
  YESTERDAY       54                        44     10       31
  MONTH TO DATE  829                       698    131      693
  SINCE DEC 1   2074                      1924    150     1963
  SINCE JUL 1   3288                      3259     29     2832

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    NW (330)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED     9.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    84           700 AM
 LOWEST     67           100 PM
 AVERAGE    76

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


THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   29        53      1990
 MINIMUM TEMPERATURE (F)   13       -25      1982


SUNRISE AND SUNSET
JANUARY 17 2018.......SUNRISE   721 AM CST   SUNSET   452 PM CST
JANUARY 18 2018.......SUNRISE   721 AM CST   SUNSET   453 PM CST


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




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