Monthly Climate Summary for  November 2007 at Chesham (Tennis Club)
                          home daily
                              Fairly warm start; then mainly rather cold; very wet 18th-21st       back forward
                         
Overall mean temperature was 6.8 ēC which is   degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 10.7 ēC which is   degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 2.8 ēC which is   degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 10.7 ēC                
Mean 24hr minimum (09-09) was 2.3 ēC                
  Highest day max was 17.5 ēC on  the   2            
  Lowest day max was 6.1 ēC on  the 18            
  Highest night min was 11.7 ēC on  the 1            
  Lowest night min was -6.5 ēC on  the 16            
  Lowest grass min was   ēC on  the              
                         
Total rainfall this month was 72.0 mm which is   per  cent of the 1971-2000 average    
  Highest daily fall was 20.4 mm on  the 19            
Number of hours with rain was                    
Equiv. TSR rainfall duration was 24.2 hrs which is   per  cent of the 1971-2000 average    
  Highest no of wet hrs   hrs on  the              
  Highest duration 6.1 hrs on  the 18            
  Mean rainfall intensity 2.98 mm/hr                
                         
Total est sunshine this month was 54.7 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 5.1 hrs on  the 2            
                         
Maximum  snow depth  was 0.0 cm on  the               
                         
Mean sea-level pressure at 09Z 1021.4 mbar which is   mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1037.5 mbar on  the 2            
  Lowest  pressure at 09Z 999.9 mbar on  the 19            
                         
Total number of days with:                      
Air Frost 7   0.2mm rain 20   No  sun 4   Snow lying 0    
Grnd Frost 0   1.0mm 10   3h  sun 9   Snow/sleet 0    
Max < 0ēC 0   5mm 4   6h  sun 0   Hail 0    
Max > 10 15   10mm 3   9h  sun 0   Thunder 0    
Max > 20 0   25mm 0   12h sun 0   Fog at 09Z 0    
Max > 30 0         15h sun 0   Gale 0    
                         
Notable events during the month: