181  
CDUS43 KDMX 120629  
CLIALO  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE DES MOINES IA  
129 AM CDT MON MAY 12 2025  
   
...............................
 
 
   
..THE WATERLOO IA CLIMATE SUMMARY FOR MAY 11 2025
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1895 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 84 352 PM 93 2022 71 13 77  
MINIMUM 54 514 AM 27 1925 48 6 43  
AVERAGE 69 60 9 60  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.96 1966 0.14 -0.14 0.00  
MONTH TO DATE 0.11 1.52 -1.41 4.20  
SINCE MAR 1 8.24 7.54 0.70 10.68  
SINCE JAN 1 8.78 9.78 -1.00 13.40  
 
SNOWFALL (IN)  
YESTERDAY 0.0 0.3 1966 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE MAR 1 4.2 6.4 -2.2 4.9  
SINCE JUL 1 17.1 39.1 -22.0 32.3  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 7 -7 5  
MONTH TO DATE 59 92 -33 66  
SINCE MAR 1 1148 1446 -298 1217  
SINCE JUL 1 5893 6616 -723 5439  
 
COOLING  
YESTERDAY 4 1 3 0  
MONTH TO DATE 10 10 0 0  
SINCE MAR 1 19 18 1 4  
SINCE JAN 1 19 18 1 4    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SE (140)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION SE (140)  
AVERAGE WIND SPEED 9.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 57 400 AM  
LOWEST 19 300 PM  
AVERAGE 38  
   
......................................................
 
 
THE WATERLOO IA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 71 94 2022  
MINIMUM TEMPERATURE (F) 49 30 1895  
1928  
 
SUNRISE AND SUNSET  
MAY 12 2025...........SUNRISE 550 AM CDT SUNSET 822 PM CDT  
MAY 13 2025...........SUNRISE 549 AM CDT SUNSET 823 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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