Climatological Report (Monthly)
Issued by NWS Chicago, IL

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CXUS53 KLOT 011410
CLMRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
901 AM CDT WED MAY 1 2013

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

...THE ROCKFORD IL CLIMATE SUMMARY FOR THE MONTH OF APRIL 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1905 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              93   04/10/1930
 LOW                5   04/07/1982
HIGHEST            87   04/30                         73  04/15
LOWEST             21   04/03                         27  04/11
AVG. MAXIMUM     56.9              60.7    -3.8     60.9
AVG. MINIMUM     36.7              38.1    -1.4     39.0
MEAN             46.8              49.4    -2.6     50.0
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.1    -0.1        0
DAYS MIN <= 32      7               7.5    -0.5        7
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         9.92   1973
 MINIMUM         0.28   1915
TOTALS           7.94              3.35    4.59     4.13
DAILY AVG.       0.26              0.11    0.15     0.14
DAYS >= .01        11              11.3    -0.3       10
DAYS >= .10         9               6.4     2.6        7
DAYS >= .50         4               2.4     1.6        2
DAYS >= 1.00        3               0.8     2.2        1
GREATEST
 24 HR. TOTAL    4.57   04/17 TO 04/18

SNOWFALL (INCHES)
RECORDS
 TOTAL            9.0   1936
TOTALS              T               0.9    -0.9        T
SINCE 7/1        40.5              36.7     3.8     24.3
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.3    -0.3        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL        T   04/19 TO 04/19

DEGREE_DAYS
HEATING TOTAL     547               476      71      446
 SINCE 7/1       6376              6340      36     5240
COOLING TOTAL       9                 8       1        2
 SINCE 1/1          9                 8       1       38
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              11.0
HIGHEST WIND SPEED/DIRECTION    35/180    DATE  04/06
HIGHEST GUST SPEED/DIRECTION    43/260    DATE  04/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.70
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY         14

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       7
LIGHT RAIN               16     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       1
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                3     SLEET                      2
FOG                      12     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

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

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