239  
CDUS43 KGRR 210522  
CLIGRR  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE GRAND RAPIDS, MICHIGAN  
122 AM EDT THU OCT 21 2021  
   
...............................
 
 
   
..THE GRAND RAPIDS CLIMATE SUMMARY FOR OCTOBER 20 2021
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1892 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 71 3:11 PM 83 1953 59 12 51  
MINIMUM 47 7:17 AM 22 1952 41 6 36  
1974  
AVERAGE 59 50 9 44  
 
PRECIPITATION (IN)  
YESTERDAY T 1.11 1916 0.13 -0.13 0.23  
MONTH TO DATE 3.48 2.59 0.89 1.25  
SINCE SEP 1 6.82 6.02 0.80 4.32  
SINCE JAN 1 30.63 32.39 -1.76 30.94  
 
SNOWFALL (IN)  
YESTERDAY 0.0 2.2 1992 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.1 -0.1 0.0  
SINCE SEP 1 0.0 0.1 -0.1 0.0  
SINCE JUL 1 0.0 0.1 -0.1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 15 -9 21  
MONTH TO DATE 65 235 -170 289  
SINCE SEP 1 111 353 -242 422  
SINCE JUL 1 111 370 -259 424  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 23 4 19 0  
SINCE SEP 1 93 77 16 36  
SINCE JAN 1 893 729 164 829    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION S (190)  
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION S (200)  
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION S (170)  
AVERAGE WIND SPEED 5.6  
 
SKY COVER  
POSSIBLE SUNSHINE 68 PERCENT  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 96 8:00 AM  
LOWEST 51 2:00 PM  
AVERAGE 74  
   
......................................................
 
 
THE GRAND RAPIDS CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 58 85 1953  
MINIMUM TEMPERATURE (F) 41 18 1974  
 
SUNRISE AND SUNSET  
OCTOBER 21 2021.......SUNRISE 8:03 AM EDT SUNSET 6:50 PM EDT  
OCTOBER 22 2021.......SUNRISE 8:04 AM EDT SUNSET 6:48 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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