Monthly Climate Summary for August 2007 at Chesham (Tennis Club)
                          home daily
                     A rather cool month; dry and sunny early and late, wet mid-month       back forward
                         
Overall mean temperature was 15.0 ēC which is   degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 21.1 ēC which is   degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 9.0 ēC which is   degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 21.1 ēC                
Mean 24hr minimum (09-09) was 9.0 ēC                
  Highest day max was 28.3 ēC on  the   5            
  Lowest day max was 15.6 ēC on  the 21            
  Highest night min was 15.7 ēC on  the 15            
  Lowest night min was 4.9 ēC on  the 10            
  Lowest grass min was   ēC on  the              
                         
Total rainfall this month was 49.0 mm which is   per  cent of the 1971-2000 average    
  Highest daily fall was 10.8 mm on  the 14            
Number of hours with rain was                    
Equiv. TSR rainfall duration was 17.7 hrs which is   per  cent of the 1971-2000 average    
  Highest no of wet hrs   hrs on  the              
  Highest duration 4.0 hrs on  the 14            
  Mean rainfall intensity 2.77 mm/hr                
                         
Total est sunshine this month was 138.2 hrs which is   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 8.4 hrs on  the 5            
                         
Maximum  snow depth  was 0.0 cm on  the  28 and 30            
                         
Mean sea-level pressure at 09Z 1014.8 mbar which is   mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1028.1 mbar on  the 26            
  Lowest  pressure at 09Z 993.6 mbar on  the 15            
                         
Total number of days with:                      
Air Frost 0   0.2mm rain 14   No  sun 3   Snow lying 0    
Grnd Frost 0   1.0mm 8   3h  sun 21   Snow/sleet 0    
Max < 0ēC 0   5mm 5   6h  sun 12   Hail 0    
Max > 10 31   10mm 1   9h  sun 0   Thunder 0    
Max > 20 20   25mm 0   12h sun 0   Fog at 09Z 0    
Max > 30 0         15h sun 0   Gale 0    
                         
Notable events during the month: