Climatological Report (Annual)
Issued by NWS Chicago, IL

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000
CXUS53 KLOT 041322
CLARFD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
720 AM CST MON JAN 4 2010...CORRECTION

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

...THE ROCKFORD IL CLIMATE SUMMARY FOR THE YEAR OF 2009...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1893 TO 2009

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH             112   07/14/1936
 LOW              -27   01/10/1982
HIGHEST            93   06/23        58      35
LOWEST            -25   01/16        38     -63
AVG. MAXIMUM     56.8              57.9    -1.1
AVG. MINIMUM     37.9              38.2    -0.3
MEAN             47.4              47.9    -0.5
DAYS MAX >= 90      4              14.2   -10.2
DAYS MAX <= 32     64              55.3     8.7
DAYS MIN <= 32    128             143.1   -15.1
DAYS MIN <= 0      15              17.5    -2.5

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        56.48   1973
 MINIMUM        22.87   1910
TOTALS          46.67             36.63   10.04
DAILY AVG.       0.13              0.10    0.03
DAYS >= .01       120             122.2    -2.2
DAYS >= .10        78              67.1    10.9
DAYS >= .50        28              23.6     4.4
DAYS >= 1.00       15               8.3     6.7
GREATEST
 24 HR. TOTAL    4.20   06/19
 STORM TOTAL       MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL           84.3   2008
 24 HR TOTAL       MM
 SNOW DEPTH        27   01/16/1979
TOTALS           48.3              38.7     9.6
 LIQUID EQUIV    4.83              3.90    0.93
SINCE 7/1        25.8              13.5    12.3
 LIQUID 7/1      2.58              1.40    1.18
SNOWDEPTH AVG.      1                 1       0
DAYS >= TRACE      56              30.8    25.2
DAYS >= 1.0        12              11.2     0.8
GREATEST
 SNOW DEPTH         9   01/16
                        01/15
 24 HR TOTAL      6.6   12/08
 STORM TOTAL       MM
 (MM/DD(HH))            MM

DEGREE_DAYS
HEATING TOTAL    6750              6933    -183
 SINCE 7/1       2573              2675    -102
COOLING TOTAL     433               768    -335
 SINCE 1/1        433               768    -335

FREEZE DATES
EARLIEST                        10/07
LATEST                          05/01
.................................................

WIND (MPH)
AVERAGE WIND SPEED              8.2
HIGHEST WIND SPEED/DIRECTION    43/210    DATE  06/19
HIGHEST GUST SPEED/DIRECTION    67/190    DATE  03/24

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM

NUMBER OF DAYS FAIR           79
NUMBER OF DAYS PC            132
NUMBER OF DAYS CLOUDY        154


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             41     MIXED PRECIP               2
HEAVY RAIN               28     RAIN                      53
LIGHT RAIN              128     FREEZING RAIN              1
LT FREEZING RAIN         10     HAIL                       5
HEAVY SNOW                3     SNOW                      18
LIGHT SNOW               50     SLEET                      8
FOG                     185     FOG W/VIS <= 1/4 MILE     16
HAZE                     86


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

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