288  
CDUS45 KBOI 180931  
CLITWF  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOISE ID  
331 AM MDT MON SEP 18 2023  
   
...............................
 
 
   
..THE TWIN FALLS ID CLIMATE SUMMARY FOR SEPTEMBER 17 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1997 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 88 214 PM 92 1998 76 12 73  
MINIMUM 48 453 AM 30 2017 47 1 45  
AVERAGE 68 61 7 59  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 0.14 2002 0.02 -0.02 T  
MONTH TO DATE 0.41 0.25 0.16 0.05  
SINCE OCT 1 8.02 10.00 -1.98 8.83  
SINCE JAN 1 5.85 7.18 -1.33 4.63  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 5 -5 6  
MONTH TO DATE 10 57 -47 22  
SINCE SEP 1 10 57 -47 22  
SINCE JUL 1 12 84 -72 22  
 
COOLING  
YESTERDAY 3 1 2 0  
MONTH TO DATE 37 43 -6 104  
SINCE SEP 1 37 43 -6 104  
SINCE JAN 1 718 603 115 989    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (200)  
AVERAGE WIND SPEED 6.6  
 
SKY COVER  
AVERAGE SKY COVER 0.0  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 68 500 AM  
LOWEST 13 400 PM  
AVERAGE 41  
   
......................................................
 
 
THE TWIN FALLS ID CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 76 87 2009  
MINIMUM TEMPERATURE (F) 46 31 2003  
 
SUNRISE AND SUNSET  
SEPTEMBER 18 2023.....SUNRISE 721 AM MDT SUNSET 742 PM MDT  
SEPTEMBER 19 2023.....SUNRISE 722 AM MDT SUNSET 741 PM MDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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