971  
CXUS53 KDVN 011940  
CLMDBQ  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE QUAD CITIES IA IL  
240 PM CDT WED OCT 01 2025  
   
...............................
 
 
   
..THE DUBUQUE IA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1873 TO 2025  
 
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S  
VALUE DATE(S) VALUE FROM VALUE  
NORMAL    
..........................................................
 
 
TEMPERATURE (F)  
RECORD  
HIGH 99 09/07/1939  
09/06/1922  
LOW 24 09/30/1899  
HIGHEST 87 09/17 77 10  
09/26  
09/29  
LOWEST 39 09/07 45 -6  
AVG. MAXIMUM 78.5 72.9 5.6  
AVG. MINIMUM 54.2 51.8 2.4  
MEAN 66.3 62.3 4.0  
DAYS MAX >= 90 0 0.3 -0.3  
DAYS MAX <= 32 0 0.0 0.0  
DAYS MIN <= 32 0 0.3 -0.3  
DAYS MIN <= 0 0 0.0 0.0  
 
PRECIPITATION (INCHES)  
RECORD  
MAXIMUM 15.46 1965  
MINIMUM 0.07 1979  
TOTALS 0.76 3.82 -3.06  
DAILY AVG. 0.03 0.13 -0.10  
DAYS >= .01 6 8.7 -2.7  
DAYS >= .10 1  
DAYS >= .50 1  
DAYS >= 1.00 0 0.9 -0.9  
GREATEST  
24 HR. TOTAL 0.57 09/22 TO 09/22  
 
SNOWFALL (INCHES)  
TOTALS 0.0 0.0 0.0  
SINCE 7/1 0.0 0.0 0.0  
SNOWDEPTH AVG. 0  
DAYS >= TRACE 0 0.0 0.0  
DAYS >= 1.0 0 0.0 0.0  
GREATEST  
SNOW DEPTH 0  
24 HR TOTAL MM  
 
DEGREE DAYS  
HEATING TOTAL 66 142 -76  
SINCE 7/1 86 169 -83  
COOLING TOTAL 115 63 52  
SINCE 1/1 866 630 236    
..........................................................
 
 
WIND (MPH)  
AVERAGE WIND SPEED 6.4  
HIGHEST WIND SPEED/DIRECTION 31/360 DATE 09/22  
HIGHEST GUST SPEED/DIRECTION 42/010 DATE 09/22  
 
SKY COVER  
POSSIBLE SUNSHINE (PERCENT) MM  
AVERAGE SKY COVER 0.21  
NUMBER OF DAYS FAIR 22  
NUMBER OF DAYS PC 7  
NUMBER OF DAYS CLOUDY 1  
 
AVERAGE RH (PERCENT) 71  
 
WEATHER CONDITIONS. NUMBER OF DAYS WITH  
THUNDERSTORM 3 HAIL 0  
SLEET 0 FOG 15  
FOG W/VIS <= 1/4 MILE 2 HAZE 3  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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