Climatological Report (Daily)
Issued by NWS Chicago, IL

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CDUS43 KLOT 220632
CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT TUE AUG 22 2017


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

...THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 21 2017...

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)
 YESTERDAY
  MAXIMUM         84    308 PM 100    1955  82      2       76
                                      1916
  MINIMUM         67    508 AM  45    1950  61      6       56
  AVERAGE         76                        72      4       66

PRECIPITATION (IN)
  YESTERDAY        T             2.84 2002   0.14  -0.14     0.00
  MONTH TO DATE    0.61                      3.19  -2.58     2.44
  SINCE JUN 1     15.53                     11.79   3.74    12.50
  SINCE JAN 1     34.38                     24.26  10.12    24.06

SNOWFALL (IN)
  YESTERDAY        0.0           0.0    MM   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE JUN 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    1                         0      1        0
  SINCE JUN 1     12                        34    -22        6
  SINCE JUL 1      1                         3     -2        0

 COOLING
  YESTERDAY       11                         7      4        1
  MONTH TO DATE  135                       161    -26      217
  SINCE JUN 1    636                       610     26      747
  SINCE JAN 1    672                       665      7      832
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED     6.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           400 AM
 LOWEST     62           400 PM
 AVERAGE    81

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


THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   82       101      1936
 MINIMUM TEMPERATURE (F)   61        41      1923


SUNRISE AND SUNSET
AUGUST 22 2017........SUNRISE   612 AM CDT   SUNSET   746 PM CDT
AUGUST 23 2017........SUNRISE   613 AM CDT   SUNSET   745 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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