AFOS product CLIALO
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CLIALO

CLIMATE REPORT 
NATIONAL WEATHER SERVICE DES MOINES IA
127 AM CDT TUE SEP 16 2025

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

...THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 15 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         89    353 PM 100    1927  77     12       91       
  MINIMUM         68    600 AM  30    2007  53     15       62       
  AVERAGE         79                        65     14       77     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.03          1.51 2016   0.10  -0.07     0.00     
  MONTH TO DATE    0.11                      1.64  -1.53     0.10     
  SINCE SEP 1      0.11                      1.64  -1.53     0.10     
  SINCE JAN 1     30.77                     28.74   2.03    33.75     

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 SEP 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                         3     -3        0        
  MONTH TO DATE   50                        29     21       16        
  SINCE SEP 1     50                        29     21       16        
  SINCE JUL 1     65                        42     23       22        

 COOLING                                                              
  YESTERDAY       14                         3     11       12        
  MONTH TO DATE   65                        64      1       57        
  SINCE SEP 1     65                        64      1       57        
  SINCE JAN 1    872                       870      2      879        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION    SE (150)       
  HIGHEST GUST SPEED    39   HIGHEST GUST DIRECTION    SE (140)       
  AVERAGE WIND SPEED     7.5                                        


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  THUNDERSTORM                                                        
  LIGHT RAIN                                                          
  FOG                                                                 


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    91           900 AM                                      
 LOWEST     47           300 PM                                      
 AVERAGE    69                                                        

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


THE WATERLOO IA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   77        97      1931                      
 MINIMUM TEMPERATURE (F)   52        31      1984                      


SUNRISE AND SUNSET                                                    
SEPTEMBER 16 2025.....SUNRISE   651 AM CDT   SUNSET   717 PM CDT     
SEPTEMBER 17 2025.....SUNRISE   652 AM CDT   SUNSET   715 PM CDT     


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




$$