Climatological Report (Daily)
Issued by NWS Chicago, IL

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CDUS43 KLOT 182139
CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
439 PM CDT THU MAY 18 2017


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

...THE ROCKFORD IL CLIMATE SUMMARY FOR MAY 18 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         74    259 PM  94    1934  73      1       69
  MINIMUM         66    832 AM  31    2002  49     17       38
  AVERAGE         70                        61      9       54

PRECIPITATION (IN)
  TODAY            0.00          1.54 1987   0.14  -0.14     0.00
  MONTH TO DATE    2.82                      2.16   0.66     1.95
  SINCE MAR 1     12.74                      7.83   4.91     8.86
  SINCE JAN 1     16.77                     10.61   6.16    10.39

SNOWFALL (IN)
  TODAY            0.0           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

DEGREE DAYS
 HEATING
  TODAY            0                         6     -6       11
  MONTH TO DATE  147                       144      3      185
  SINCE MAR 1   1303                      1482   -179     1335
  SINCE JUL 1   5377                      6484  -1107     5521

 COOLING
  TODAY            5                         2      3        0
  MONTH TO DATE   31                        17     14        0
  SINCE MAR 1     39                        25     14        7
  SINCE JAN 1     39                        25     14        7
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    34   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED    15.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87          1200 AM
 LOWEST     57          1200 PM
 AVERAGE    72

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


THE ROCKFORD IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   73        96      1934
 MINIMUM TEMPERATURE (F)   49        31      1929


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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