Climatological Report (Daily)
Issued by NWS Chicago, IL

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CDUS43 KLOT 210634
CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
134 AM CDT SUN MAY 21 2017


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

...THE ROCKFORD IL CLIMATE SUMMARY FOR MAY 20 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         63    709 PM  94    1934  73    -10       70
  MINIMUM         47    421 AM  31    1924  50     -3       48
  AVERAGE         55                        61     -6       59

PRECIPITATION (IN)
  YESTERDAY        0.53          2.14 1996   0.14   0.39     0.00
  MONTH TO DATE    3.57                      2.43   1.14     1.95
  SINCE MAR 1     13.49                      8.10   5.39     8.86
  SINCE JAN 1     17.52                     10.88   6.64    10.39

SNOWFALL (IN)
  YESTERDAY        0.0           T    2015   0.0    0.0      0.0
  MONTH TO DATE    T                         0.0    0.0      0.0
  SINCE MAR 1      5.1                       5.7   -0.6      2.8
  SINCE JUL 1     22.1                      36.7  -14.6     24.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       10                         5      5        6
  MONTH TO DATE  177                       155     22      199
  SINCE MAR 1   1333                      1493   -160     1349
  SINCE JUL 1   5407                      6495  -1088     5535

 COOLING
  YESTERDAY        0                         2     -2        0
  MONTH TO DATE   26                        21      5        0
  SINCE MAR 1     34                        29      5        7
  SINCE JAN 1     34                        29      5        7
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    21   HIGHEST WIND DIRECTION     E (70)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     E (70)
  AVERAGE WIND SPEED     9.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  HEAVY RAIN
  LIGHT RAIN
  FOG
  FOG W/VISIBILITY <= 1/4 MILE
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93          1000 AM
 LOWEST     50           300 AM
 AVERAGE    72

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


THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   73        93      1934
 MINIMUM TEMPERATURE (F)   50        29      2002


SUNRISE AND SUNSET
MAY 21 2017...........SUNRISE   530 AM CDT   SUNSET   817 PM CDT
MAY 22 2017...........SUNRISE   529 AM CDT   SUNSET   818 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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