Monthly Climate Summary for  April  2011  at Whipsnade (Lodge)
                          home daily
              Very dry and very sunny;  warmest generally in the UK in 350 years of records   back forward
                         
Overall mean temperature was 11.8 ēC which is +4.6 degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 17.6 ēC which is +6.4 degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 6.0 ēC which is +2.8 degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 17.7 ēC                
Mean 24hr minimum (09-09) was 5.9 ēC                
  Highest day max was 25.8 ēC on  the   23            
  Lowest day max was 11.0 ēC on  the 13            
  Highest night min was 10.8 ēC on  the 6            
  Lowest night min was -0.6 ēC on  the 13            
  Lowest grass min was -5.1 ēC on  the 13            
                         
Total rainfall this month was 11.8 mm which is 21.5 per  cent of the 1971-2000 average    
  Highest daily fall was 4.1 mm on  the 23            
Number of hours with rain was                    
Equiv. TSR rainfall duration was 6.9 hrs which is   per  cent of the 1971-2000 average    
  Highest no of wet hrs   hrs on  the              
  Highest duration 3.9 hrs on  the 4            
  Mean rainfall intensity 1.71 mm/hr                
                         
Total CS sunshine this month was 225.5 hrs which is 162.3 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 25            
                         
Maximum  snow depth  was 0.0 cm on  the  6            
                         
Mean sea-level pressure at 09Z 1020.5 mbar which is +5.3 mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1030.4 mbar on  the 12            
  Lowest  pressure at 09Z 1008.1 mbar on  the 2            
                         
Number of days with:                      
Air Frost 1   0.2mm rain 6   No  sun 3   Snow lying 0    
Grnd Frost 8   1.0mm 5   3h  sun 23   Snow/sleet 0    
Max < 0ēC 0   5mm 0   6h  sun 19   Hail 1    
Max > 10 30   10mm 0   9h  sun 15   Thunder 3    
Max > 20 6   25mm 0   12h sun 5   Fog at 09Z 0    
Max > 30 0         15h sun 0   Gale 0    
                         
Notable events during the month: