Climatological Report (Daily)
Issued by NWS Chicago, IL

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000
CDUS43 KLOT 170653
CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
153 AM CDT THU AUG 17 2017


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

...THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 16 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         91        MM 104    1988  83      8       85
  MINIMUM         65        MM  44    1992  62      3       68
  AVERAGE         78                        72      6       77

PRECIPITATION (IN)
  YESTERDAY        0.43          3.58 1968   0.15   0.28      T
  MONTH TO DATE    0.56                      2.43  -1.87     1.52
  SINCE JUN 1     15.48                     11.03   4.45    11.58
  SINCE JAN 1     34.33                     23.50  10.83    23.14

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       13                         7      6       12
  MONTH TO DATE   97                       126    -29      175
  SINCE JUN 1    598                       575     23      705
  SINCE JAN 1    634                       630      4      790
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     S (160)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION     S (160)
  AVERAGE WIND SPEED     9.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    94           900 PM
 LOWEST     49           100 PM
 AVERAGE    72

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


THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83       102      1988
 MINIMUM TEMPERATURE (F)   62        46      1924


SUNRISE AND SUNSET
AUGUST 17 2017........SUNRISE   606 AM CDT   SUNSET   754 PM CDT
AUGUST 18 2017........SUNRISE   607 AM CDT   SUNSET   752 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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