Climatological Report (Seasonal)
Issued by NWS Chicago, IL

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CXUS53 KLOT 011612
CLSRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1009 AM CST FRI DEC 1 2017

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

...THE ROCKFORD IL CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2017 TO 11/30/2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1905 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH             103   09/07/1939
 LOW              -10   11/26/1977
HIGHEST            93   09/23        MM      MM       92
LOWEST             14   11/10        MM      MM       19
AVG. MAXIMUM     63.2              61.9     1.3     67.1
AVG. MINIMUM     43.0              41.1     1.9     47.4
MEAN             53.1              51.5     1.6     57.3
DAYS MAX >= 90      6
DAYS MAX <= 32      1
DAYS MIN <= 32     23
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        21.56   1961
 MINIMUM         3.05   1956
TOTALS           7.39              8.60   -1.21     7.36
DAYS >= .01        21
DAYS >= .10        12
DAYS >= .50         5
DAYS >= 1.00        2

SNOWFALL (INCHES)
TOTALS            0.2               1.8    -1.6
SINCE 7/1         0.2               1.8    -1.6

DEGREE_DAYS
HEATING TOTAL    1207              1321    -114
 SINCE 7/1       1214              1335    -121
COOLING TOTAL     144                93      51
 SINCE 1/1        828               820       8
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              8.5
HIGHEST WIND SPEED/DIRECTION    32/320    DATE  11/15
HIGHEST GUST SPEED/DIRECTION    40/310    DATE  11/15


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       7
LIGHT RAIN               30     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                4     SLEET                      1
FOG                      36     FOG W/VIS <= 1/4 MILE      4
HAZE                      2

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

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