AFOS product CLIALO
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CLIALO

CLIMATE REPORT 
NATIONAL WEATHER SERVICE DES MOINES IA
144 AM CDT MON SEP 22 2025

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

...THE WATERLOO IA CLIMATE SUMMARY FOR SEPTEMBER 21 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         78    443 PM  93    1937  75      3       93       
                                      2024                           
  MINIMUM         58    621 AM  27    1918  50      8       60       
  AVERAGE         68                        63      5       77     

PRECIPITATION (IN)                                                    
  YESTERDAY        0.00          3.08 1950   0.10  -0.10     0.00     
  MONTH TO DATE    0.58                      2.25  -1.67     0.44     
  SINCE SEP 1      0.58                      2.25  -1.67     0.44     
  SINCE JAN 1     31.24                     29.35   1.89    34.09     

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                         5     -5        0        
  MONTH TO DATE   51                        54     -3       16        
  SINCE SEP 1     51                        54     -3       16        
  SINCE JUL 1     66                        67     -1       22        

 COOLING                                                              
  YESTERDAY        3                         2      1       12        
  MONTH TO DATE   95                        81     14      126        
  SINCE SEP 1     95                        81     14      126        
  SINCE JAN 1    902                       887     15      948        
...................................................................


WIND (MPH)                                                            
  HIGHEST WIND SPEED     9   HIGHEST WIND DIRECTION    SW (210)       
  HIGHEST GUST SPEED    14   HIGHEST GUST DIRECTION     S (200)       
  AVERAGE WIND SPEED     3.3                                        


WEATHER CONDITIONS                                                    
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.                         
  FOG                                                                 


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           500 AM                                      
 LOWEST     48           500 PM                                      
 AVERAGE    74                                                        

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


THE WATERLOO IA CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR                     
 MAXIMUM TEMPERATURE (F)   75        94      1937                      
 MINIMUM TEMPERATURE (F)   50        26      1974                      


SUNRISE AND SUNSET                                                    
SEPTEMBER 22 2025.....SUNRISE   657 AM CDT   SUNSET   706 PM CDT     
SEPTEMBER 23 2025.....SUNRISE   658 AM CDT   SUNSET   704 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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