Climatological Report (Daily)
Issued by NWS Chicago, IL

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CDUS43 KLOT 162239
CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
437 PM CST SAT DEC 16 2017


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

...THE ROCKFORD IL CLIMATE SUMMARY FOR DECEMBER 16 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1905 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         47    234 PM  58    1984  33     14       19
  MINIMUM         28    801 AM -14    1932  17     11        7
  AVERAGE         38                        25     13       13

PRECIPITATION (IN)
  TODAY            0.00          1.12 1921   0.06  -0.06     0.19
  MONTH TO DATE    0.11                      1.15  -1.04     1.25
  SINCE DEC 1      0.11                      1.15  -1.04     1.25
  SINCE JAN 1     44.29                     35.41   8.88    34.53

SNOWFALL (IN)
  TODAY            0.0           3.6  2008   0.4   -0.4      1.4
  MONTH TO DATE    1.5                       5.5   -4.0     13.0
  SINCE DEC 1      1.5                       5.5   -4.0     13.0
  SINCE JUL 1      1.7                       7.3   -5.6     13.0

DEGREE DAYS
 HEATING
  TODAY           27                        40    -13       52
  MONTH TO DATE  543                       598    -55      679
  SINCE DEC 1    543                       598    -55      679
  SINCE JUL 1   1757                      1933   -176     1548

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    828                       820      8     1103
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION    SW (210)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    SW (220)
  AVERAGE WIND SPEED     7.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    78           800 AM
 LOWEST     49           100 PM
 AVERAGE    64

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


THE ROCKFORD IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   32        50      2006
                                             1977
                                             1941
 MINIMUM TEMPERATURE (F)   17       -12      1945


SUNRISE AND SUNSET
DECEMBER 16 2017......SUNRISE   719 AM CST   SUNSET   425 PM CST
DECEMBER 17 2017......SUNRISE   719 AM CST   SUNSET   426 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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