Climatological Report (Daily)
Issued by NWS Chicago, IL

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CDUS43 KLOT 170635
CLIRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1233 AM CST SAT FEB 17 2018


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

...THE ROCKFORD IL CLIMATE SUMMARY FOR FEBRUARY 16 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1905 TO 2018


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         37   1247 AM  57    1921  34      3       43
  MINIMUM         12   1159 PM -10    1958  18     -6       30
                                      1920
  AVERAGE         25                        26     -1       37

PRECIPITATION (IN)
  YESTERDAY        0.00          0.43 2006   0.05  -0.05     0.00
  MONTH TO DATE    1.28                      0.72   0.56     0.33
  SINCE DEC 1      3.11                      4.07  -0.96     4.46
  SINCE JAN 1      2.62                      2.09   0.53     2.58

SNOWFALL (IN)
  YESTERDAY        0.0           4.5  1925   0.2   -0.2      0.0
  MONTH TO DATE   16.1                       4.7   11.4       T
  SINCE DEC 1     26.8                      26.2    0.6     16.8
  SINCE JUL 1     27.0                      28.0   -1.0     16.8
  SNOW DEPTH       2

DEGREE DAYS
 HEATING
  YESTERDAY       40                        39      1       28
  MONTH TO DATE  777                       655    122      549
  SINCE DEC 1   3375                      3229    146     2972
  SINCE JUL 1   4589                      4564     25     3841

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    23   HIGHEST WIND DIRECTION     N (350)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION     N (360)
  AVERAGE WIND SPEED    10.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.6


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    75           100 AM
 LOWEST     42           200 PM
 AVERAGE    59

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


THE ROCKFORD IL CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   35        66      2017
 MINIMUM TEMPERATURE (F)   18       -13      1958


SUNRISE AND SUNSET
FEBRUARY 17 2018......SUNRISE   650 AM CST   SUNSET   532 PM CST
FEBRUARY 18 2018......SUNRISE   648 AM CST   SUNSET   533 PM CST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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