Climatological Report (Annual)
Issued by NWS Chicago, IL

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000
CXUS53 KLOT 011419
CLARFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
814 AM CST SAT JAN 1 2011

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

...THE ROCKFORD IL CLIMATE SUMMARY FOR THE YEAR OF 2010...

CLIMATE NORMAL PERIOD 1971 TO 2000
CLIMATE RECORD PERIOD 1893 TO 2010

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   05/24        58      35
LOWEST            -10   01/10        38     -48
AVG. MAXIMUM     60.0              57.9     2.1
AVG. MINIMUM     40.4              38.2     2.2
MEAN             50.2              47.9     2.3
DAYS MAX >= 90     13              14.2    -1.2
DAYS MAX <= 32     69              55.3    13.7
DAYS MIN <= 32    128             143.1   -15.1
DAYS MIN <= 0      11              17.5    -6.5

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        56.48   1973
 MINIMUM        22.87   1910
TOTALS          37.09             36.63    0.46
DAILY AVG.       0.10              0.10    0.00
DAYS >= .01       121             122.2    -1.2
DAYS >= .10        64              67.1    -3.1
DAYS >= .50        21              23.6    -2.6
DAYS >= 1.00        7               8.3    -1.3
GREATEST
 24 HR. TOTAL    4.70   07/23 TO 07/23
 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           44.1              38.7     5.4
 LIQUID EQUIV    4.41              3.90    0.51
SINCE 7/1        19.2              13.5     5.7
 LIQUID 7/1      1.92              1.40    0.52
SNOWDEPTH AVG.      1                 1       0
DAYS >= TRACE      52              30.8    21.2
DAYS >= 1.0        13              11.2     1.8
GREATEST
 SNOW DEPTH         9   01/10
                        01/08
                        01/09
 24 HR TOTAL      5.7   12/04 TO 12/04
 STORM TOTAL       MM
 (MM/DD(HH))            MM

DEGREE_DAYS
HEATING TOTAL    6254              6933    -679
 SINCE 7/1       2447              2675    -228
COOLING TOTAL     991               768     223
 SINCE 1/1        991               768     223

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

WIND (MPH)
AVERAGE WIND SPEED              8.0
HIGHEST WIND SPEED/DIRECTION    44/230    DATE  10/26
HIGHEST GUST SPEED/DIRECTION    58/260    DATE  10/27

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM

NUMBER OF DAYS FAIR           92
NUMBER OF DAYS PC            133
NUMBER OF DAYS CLOUDY        140


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             43     MIXED PRECIP               0
HEAVY RAIN               29     RAIN                      39
LIGHT RAIN              122     FREEZING RAIN              0
LT FREEZING RAIN          8     HAIL                       1
HEAVY SNOW                1     SNOW                      10
LIGHT SNOW               50     SLEET                      4
FOG                     168     FOG W/VIS <= 1/4 MILE     21
HAZE                    113

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

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