739  
CDUS45 KBOI 210932  
CLIBOI  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOISE ID  
332 AM MDT MON MAY 21 2018  
 
   
...............................
 
 
   
..THE BOISE ID CLIMATE SUMMARY FOR MAY 20 2018
 
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1875 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 72 558 PM 94 1958 73 -1 77  
MINIMUM 56 923 AM 29 1898 48 8 52  
AVERAGE 64 60 4 65  
 
PRECIPITATION (IN)  
YESTERDAY 0.20 0.56 1985 0.05 0.15 T  
MONTH TO DATE 1.56 0.92 0.64 0.74  
SINCE OCT 1 9.77 9.42 0.35 13.29  
SINCE JAN 1 6.38 5.77 0.61 9.79  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1952 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE OCT 1 20.1 19.2 0.9 39.1  
SINCE JUL 1 20.1 19.2 0.9 39.1  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 1 6 -5 0  
MONTH TO DATE 77 170 -93 196  
SINCE MAR 1 1092 1235 -143 1148  
SINCE JUL 1 5093 5394 -301 5435  
 
COOLING  
YESTERDAY 0 1 -1 0  
MONTH TO DATE 18 19 -1 16  
SINCE MAR 1 23 22 1 16  
SINCE JAN 1 23 22 1 16    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NW (310)  
AVERAGE WIND SPEED 6.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.8  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
FOG  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 86 1100 PM  
LOWEST 49 600 PM  
AVERAGE 68  
   
......................................................
 
 
 
THE BOISE ID CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 73 91 1919  
MINIMUM TEMPERATURE (F) 48 27 1887  
 
 
SUNRISE AND SUNSET  
MAY 21 2018...........SUNRISE 614 AM MDT SUNSET 909 PM MDT  
MAY 22 2018...........SUNRISE 613 AM MDT SUNSET 910 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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