Climatological Report (Daily)
Issued by NWS Chicago, IL

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CDUS43 KLOT 212138
CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
438 PM CDT SUN MAY 21 2017


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

...THE ROCKFORD IL CLIMATE SUMMARY FOR MAY 21 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         63    126 AM  93    1934  73    -10       80
  MINIMUM         52    259 PM  29    2002  50      2       50
  AVERAGE         58                        62     -4       65

PRECIPITATION (IN)
  TODAY            T             1.70 1940   0.15  -0.15     0.00
  MONTH TO DATE    3.57                      2.58   0.99     1.95
  SINCE MAR 1     13.49                      8.25   5.24     8.86
  SINCE JAN 1     17.52                     11.03   6.49    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            7                         5      2        0
  MONTH TO DATE  184                       160     24      199
  SINCE MAR 1   1340                      1498   -158     1349
  SINCE JUL 1   5414                      6500  -1086     5535

 COOLING
  TODAY            0                         2     -2        0
  MONTH TO DATE   26                        23      3        0
  SINCE MAR 1     34                        31      3        7
  SINCE JAN 1     34                        31      3        7
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     W (270)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED    12.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.9


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  THUNDERSTORM
  LIGHT RAIN
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97          1200 AM
 LOWEST     62          1100 AM
 AVERAGE    80

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


THE ROCKFORD IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   74        94      1925
 MINIMUM TEMPERATURE (F)   50        33      1967


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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