Climatological Report (Daily)
Issued by NWS Chicago, IL

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000
CDUS43 KLOT 180637
CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
136 AM CDT FRI AUG 18 2017


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

...THE ROCKFORD IL CLIMATE SUMMARY FOR AUGUST 17 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         81    430 PM 102    1988  83     -2       86
  MINIMUM         68   1159 PM  46    1924  62      6       68
  AVERAGE         75                        72      3       77

PRECIPITATION (IN)
  YESTERDAY        0.05          2.03 1979   0.17  -0.12      T
  MONTH TO DATE    0.61                      2.60  -1.99     1.52
  SINCE JUN 1     15.53                     11.20   4.33    11.58
  SINCE JAN 1     34.38                     23.67  10.71    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       10                         7      3       12
  MONTH TO DATE  107                       133    -26      187
  SINCE JUN 1    608                       582     26      717
  SINCE JAN 1    644                       637      7      802
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    25   HIGHEST WIND DIRECTION    SW (240)
  HIGHEST GUST SPEED    33   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED    12.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    90           500 AM
 LOWEST     58           200 PM
 AVERAGE    74

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


THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   82       101      1936
 MINIMUM TEMPERATURE (F)   61        45      1963


SUNRISE AND SUNSET
AUGUST 18 2017........SUNRISE   607 AM CDT   SUNSET   752 PM CDT
AUGUST 19 2017........SUNRISE   608 AM CDT   SUNSET   751 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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