Monthly Climate Summary for September 2010 at Whipsnade (The Lodge)
                          home daily
                         An episodic month, but the last week was cool, cloudy and wet        back forward
                         
Overall mean temperature was 13.0 ēC which is -0.3 degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 17.0 ēC which is -0.2 degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 9.0 ēC which is -0.4 degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 17.0 ēC                
Mean 24hr minimum (09-09) was 8.9 ēC                
  Highest day max was 21.1 ēC on  the   22            
  Lowest day max was 10.6 ēC on  the 26            
  Highest night min was 14.8 ēC on  the 11            
  Lowest night min was 1.6 ēC on  the 25            
  Lowest grass min was -1.5 ēC on  the 25            
                         
Total rainfall this month was 60.5 mm which is 106.1 per  cent of the 1971-2000 average    
  Highest daily fall was 14.7 mm on  the 29            
Number of hours with rain was                    
Equiv. TSR rainfall duration was   hrs which is   per  cent of the 1971-2000 average    
  Highest no of wet hrs   hrs on  the              
  Highest duration   hrs on  the              
  Mean rainfall intensity   mm/hr                
                         
Total CS sunshine this month was 135.7 hrs which is 99.4 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 11.4 hrs on  the 3            
                         
Maximum  snow depth  was 0.0 cm on  the               
                         
Mean sea-level pressure at 09Z 1015.7 mbar which is -0.7 mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1025.9 mbar on  the 13            
  Lowest  pressure at 09Z 1001.3 mbar on  the 7            
                         
Number of days with:                      
Air Frost 0   0.2mm rain 15   No  sun 3   Snow lying 0    
Grnd Frost 2   1.0mm 12   3h  sun 17   Snow/sleet 0    
Max < 0ēC 0   5mm 3   6h  sun 11   Hail 0    
Max > 10 30   10mm 2   9h  sun 5   Thunder 2    
Max > 20 4   25mm 0   12h sun 0   Fog at 09Z 1    
Max > 30 0         15h sun 0   Gale 0    
                         
Notable events during the month: