Climatological Report (Daily)
Issued by NWS Chicago, IL

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CDUS43 KLOT 180637
CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
135 AM CDT THU MAY 18 2017


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

...THE ROCKFORD IL CLIMATE SUMMARY FOR MAY 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         85    340 PM  91    1934  72     13       64
  MINIMUM         65   1110 PM  32    1930  49     16       43
  AVERAGE         75                        60     15       54

PRECIPITATION (IN)
  YESTERDAY        0.83          2.25 1969   0.13   0.70      T
  MONTH TO DATE    2.82                      2.02   0.80     1.95
  SINCE MAR 1     12.74                      7.69   5.05     8.86
  SINCE JAN 1     16.77                     10.47   6.30    10.39

SNOWFALL (IN)
  YESTERDAY        T   R         0.0    MM   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        0                         6     -6       11
  MONTH TO DATE  147                       138      9      174
  SINCE MAR 1   1303                      1476   -173     1324
  SINCE JUL 1   5377                      6478  -1101     5510

 COOLING
  YESTERDAY       10                         1      9        0
  MONTH TO DATE   26                        15     11        0
  SINCE MAR 1     34                        23     11        7
  SINCE JAN 1     34                        23     11        7
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    40   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    49   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED    18.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    73           500 AM
 LOWEST     47           300 PM
 AVERAGE    60

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


THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   73        94      1934
 MINIMUM TEMPERATURE (F)   49        31      2002


SUNRISE AND SUNSET
MAY 18 2017...........SUNRISE   532 AM CDT   SUNSET   814 PM CDT
MAY 19 2017...........SUNRISE   531 AM CDT   SUNSET   815 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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