Monthly Climate Summary for  April  2008  at Luton (Cranleigh Gardens)
                          home daily
                                       Cold and showery with some snow 5th-20th; rather warm 21st-28th       back forward
                         
Overall mean temperature was 8.5 ēC which is +0.3 degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 13.3 ēC which is +0.7 degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 3.8 ēC which is -0.1 degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 13.3 ēC                
Mean 24hr minimum (09-09) was 3.8 ēC                
  Highest day max was 21.7 ēC on  the   26                 
  Lowest day max was 6.1 ēC on  the 6            
  Highest night min was 11.6 ēC on  the 27            
  Lowest night min was -2.3 ēC on  the 8            
  Lowest grass min was -7.8 ēC on  the 8            
                         
Total rainfall this month was 52.3 mm which is 90.5 per  cent of the 1971-2000 average    
  Highest daily fall was 13.0 mm on  the 29            
Number of hours with rain was                    
Equiv. TSR rainfall duration was 39.1 hrs which is 84.6 per  cent of the 1971-2000 average    
  Highest no of wet hrs   hrs on  the              
  Highest duration 6.8 hrs on  the 12            
  Mean rainfall intensity 1.34 mm/hr                
                         
Total CS sunshine this month was 152.6 hrs which is 109.9 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 9.5 hrs on  the 12            
                         
Maximum  snow depth  was 4.0 cm on  the  6            
                         
Mean sea-level pressure at 09Z 1010.4 mbar which is -4.8 mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1030.6 mbar on  the 3            
  Lowest  pressure at 09Z 987.2 mbar on  the 30            
                         
Number of days with:                      
Air Frost 5   0.2mm rain 19   No  sun 4   Snow lying 1    
Grnd Frost 13   1.0mm 11   3h  sun 24   Snow/sleet 2    
Max < 0ēC 0   5mm 4   6h  sun 13   Hail 5    
Max > 10 26   10mm 2   9h  sun 2   Thunder 2    
Max > 20 1   25mm 0   12h sun 0   Fog at 09Z 0    
Max > 30 0         15h sun 0   Gale 0    
                         
Notable events during the month: