AFOS product CLIALO
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CLIALO

CLIMATE REPORT 
NATIONAL WEATHER SERVICE DES MOINES IA
139 AM CDT SUN AUG 31 2025

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

...THE WATERLOO IA CLIMATE SUMMARY FOR AUGUST 30 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         73    516 PM  96    1937  81     -8       82       
                                      2012                           
  MINIMUM         59    226 AM  34    1915  58      1       60       
  AVERAGE         66                        70     -4       71     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          1.75 1956   0.13  -0.13     0.03     
  MONTH TO DATE    3.09                      4.04  -0.95     1.78     
  SINCE JUN 1     19.62                     14.10   5.52    14.41     
  SINCE JAN 1     30.66                     26.97   3.69    33.65     

SNOWFALL (IN)                                                              
  YESTERDAY        0.0          MM      MM   0.0    0.0      0.0      
  MONTH TO DATE    0.0                       0.0    0.0      0.0      
  SINCE JUN 1      0.0                       0.0    0.0      0.0      
  SINCE JUL 1      0.0                       0.0    0.0      0.0      
  SNOW DEPTH       0                                                 

DEGREE DAYS                                                           
 HEATING                                                              
  YESTERDAY        0                         1     -1        0        
  MONTH TO DATE   15                         4     11        5        
  SINCE JUN 1     21                        25     -4        6        
  SINCE JUL 1     15                         7      8        6        

 COOLING                                                              
  YESTERDAY        1                         6     -5        6        
  MONTH TO DATE  197                       220    -23      251        
  SINCE JUN 1    758                       729     29      781        
  SINCE JAN 1    804                       801      3      817        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION    NE (60)        
  HIGHEST GUST SPEED    15   HIGHEST GUST DIRECTION    NE (50)        
  AVERAGE WIND SPEED     5.8                                        


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  FOG                                                                 


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           200 AM                                      
 LOWEST     73           400 PM                                      
 AVERAGE    87                                                        

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


THE WATERLOO IA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   81        99      2000                      
 MINIMUM TEMPERATURE (F)   58        36      1915                      


SUNRISE AND SUNSET                                                    
AUGUST 31 2025........SUNRISE   634 AM CDT   SUNSET   745 PM CDT     
SEPTEMBER  1 2025.....SUNRISE   635 AM CDT   SUNSET   743 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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