Climatological Report (Daily)
Issued by NWS Chicago, IL

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CDUS43 KLOT 220634
CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT FRI SEP 22 2017


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

...THE ROCKFORD IL CLIMATE SUMMARY FOR SEPTEMBER 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         89    217 PM  94    1920  73     16       77
  MINIMUM         69    540 AM  34    1995  50     19       66
  AVERAGE         79                        62     17       72

PRECIPITATION (IN)
  YESTERDAY        0.04          3.20 1950   0.12  -0.08     1.04
  MONTH TO DATE    0.51                      2.40  -1.89     2.90
  SINCE SEP 1      0.51                      2.40  -1.89     2.90
  SINCE JAN 1     37.30                     28.06   9.24    28.82

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

DEGREE DAYS
 HEATING
  YESTERDAY        0                         5     -5        0
  MONTH TO DATE   50                        55     -5        2
  SINCE SEP 1     50                        55     -5        2
  SINCE JUL 1     57                        69    -12        2

 COOLING
  YESTERDAY       14                         2     12        7
  MONTH TO DATE   59                        73    -14      131
  SINCE SEP 1     59                        73    -14      131
  SINCE JAN 1    743                       800    -57     1048
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    17   HIGHEST WIND DIRECTION     S (170)
  HIGHEST GUST SPEED    21   HIGHEST GUST DIRECTION     S (180)
  AVERAGE WIND SPEED     5.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           300 AM
 LOWEST     37           200 PM
 AVERAGE    69

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


THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   73        93      1937
 MINIMUM TEMPERATURE (F)   49        30      1976


SUNRISE AND SUNSET
SEPTEMBER 22 2017.....SUNRISE   644 AM CDT   SUNSET   653 PM CDT
SEPTEMBER 23 2017.....SUNRISE   645 AM CDT   SUNSET   651 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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