Climatological Report (Daily)
Issued by NWS Chicago, IL

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000
CDUS43 KLOT 120631
CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
131 AM CDT SAT AUG 12 2017


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

...THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 11 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         77    301 PM 101    1941  83     -6       89
  MINIMUM         60   1159 PM  47    1982  62     -2       71
  AVERAGE         69                        72     -3       80

PRECIPITATION (IN)
  YESTERDAY        T             1.95 1916   0.15  -0.15     0.04
  MONTH TO DATE    0.13                      1.63  -1.50     0.92
  SINCE JUN 1     15.05                     10.23   4.82    10.98
  SINCE JAN 1     33.90                     22.70  11.20    22.54

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        4                         8     -4       15
  MONTH TO DATE   66                        88    -22      124
  SINCE JUN 1    567                       537     30      654
  SINCE JAN 1    603                       592     11      739
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION    NW (320)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED     7.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           400 AM
 LOWEST     54           300 PM
 AVERAGE    74

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


THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   83        99      1918
 MINIMUM TEMPERATURE (F)   62        44      1967


SUNRISE AND SUNSET
AUGUST 12 2017........SUNRISE   601 AM CDT   SUNSET   801 PM CDT
AUGUST 13 2017........SUNRISE   602 AM CDT   SUNSET   800 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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