599  
CDUS43 KAPX 180538  
CLIAPN  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE  
138 AM EDT MON AUG 18 2025  
   
...............................
 
 
   
..THE ALPENA MI CLIMATE SUMMARY FOR AUGUST 17 2025
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1916 TO 2025  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 70 3:28 PM 92 1925 79 -9 72  
2015  
MINIMUM 50 11:59 PM 33 1961 55 -5 66  
AVERAGE 60 67 -7 69  
 
PRECIPITATION (IN)  
YESTERDAY T 1.58 2017 0.10 -0.10 1.02  
MONTH TO DATE 1.39 1.64 -0.25 1.27  
SINCE JUN 1 7.49 7.58 -0.09 12.53  
SINCE JAN 1 18.06 18.43 -0.37 25.87  
 
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 JUL 1 0.0 0.0 0.0 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 5 2 0  
MONTH TO DATE 7 20 4  
SINCE JUN 1 118 174 95  
SINCE JUL 1 27 54 14  
 
COOLING  
YESTERDAY 0 3 4  
MONTH TO DATE 100 66 73  
SINCE JUN 1 357 263 331  
SINCE JAN 1 363 279 338    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (20)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION N (10)  
AVERAGE WIND SPEED 8.3  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 93  
LOWEST 53  
AVERAGE 73  
   
......................................................
 
 
THE ALPENA MI CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 79 100 1947  
MINIMUM TEMPERATURE (F) 54 34 1962  
 
SUNRISE AND SUNSET  
AUGUST 18 2025........SUNRISE 6:40 AM EDT SUNSET 8:35 PM EDT  
AUGUST 19 2025........SUNRISE 6:41 AM EDT SUNSET 8:34 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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