Monthly Climate Summary for August 2004 at Luton (Cranleigh Gardens)
                          home daily
                          A warm and humid month with frequent heavy rain and thunder     back forward
                         
Overall mean temperature was 18.6 ēC which is +1.8 degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 23.2 ēC which is +1.3 degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 14.1 ēC which is +2.3 degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 23.2 ēC                
Mean 24hr minimum (09-09) was 14.1 ēC                
  Highest day max was 30.4 ēC on  the   8            
  Lowest day max was 18.1 ēC on  the 29            
  Highest night min was 19.9 ēC on  the 9            
  Lowest night min was 7.7 ēC on  the 28            
  Lowest grass min was 5.0 ēC on  the 28            
                         
Total rainfall this month was 110.2 mm which is 217.8 per  cent of the 1971-2000 average    
  Highest daily fall was 24.3 mm on  the 3            
Number of hours with rain was                    
Equiv. TSR rainfall duration was 50.0 hrs which is 120.7 per  cent of the 1971-2000 average    
  Highest no of wet hrs   hrs on  the              
  Highest duration 12.8 hrs on  the 9            
  Mean rainfall intensity 2.20 mm/hr                
                         
Total CS sunshine this month was 184.3 hrs which is 99.6 per  cent of the 1971-2000 average    
Equiv. C/S sunshine total was   hrs which is   per  cent of the 1971-2000 average    
  Highest daily sun was 13.3 hrs on  the 7            
                         
Maximum  snow depth  was 0.0 cm on  the               
                         
Mean sea-level pressure at 09Z 1010.8 mbar which is -5.3 mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1021.9 mbar on  the 1            
  Lowest  pressure at 09Z 997.9 mbar on  the 18            
                         
Number of days with:                      
Air Frost 0   0.2mm rain 20   No  sun 0   Snow lying 0    
Grnd Frost 0   1.0mm 16   3h  sun 24   Snow/sleet 0    
Max < 0ēC 0   5mm 6   6h  sun 13   Hail 0    
Max > 10 31   10mm 3   9h  sun 5   Thunder 5    
Max > 20 27   25mm 0   12h sun 2   Fog at 09Z 0    
Max > 30 1         15h sun 0   Gale 0    
                         
Notable events during the month: