Monthly Climate Summary for  April  2003  at Luton (Cranleigh Gardens)
                          home daily
         Dry, sunny and warm. Exceptional warmth on the 16th. Long dry spell ended on the 24th. back forward
                         
Overall mean temperature was 9.7 ēC which is +1.4 degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 15.1 ēC which is +2.5 degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 4.2 ēC which is +0.3 degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 15.3 ēC                
Mean 24hr minimum (09-09) was 4.2 ēC                
  Highest day max was 26.4 ēC on  the   16            
  Lowest day max was 6.6 ēC on  the 10            
  Highest night min was 10.2 ēC on  the 14            
  Lowest night min was -3.8 ēC on  the 8            
  Lowest grass min was -7.8 ēC on  the 9            
                         
Total rainfall this month was 24.2 mm which is 41.9 per  cent of the 1971-2000 average    
  Highest daily fall was 6.2 mm on  the 1            
Number of hours with rain was                    
Equiv. TSR rainfall duration was 28.9 hrs which is 63.2 per  cent of the 1971-2000 average    
  Highest no of wet hrs   hrs on  the              
  Highest duration 9.0 hrs on  the 25            
  Mean rainfall intensity 0.84 mm/hr                
                         
Total CS sunshine this month was 190.2 hrs which is 152.1 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 12.3 hrs on  the 7            
                         
Maximum  snow depth  was 0.0 cm on  the               
                         
Mean sea-level pressure at 09Z 1016.8 mbar which is +1.6 mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1034.0 mbar on  the 5            
  Lowest  pressure at 09Z 994.0 mbar on  the 28            
                         
Number of days with:                      
Air Frost 6   0.2mm rain 9   No  sun 1   Snow lying 0    
Grnd Frost 10   1.0mm 5   3h  sun 21   Snow/sleet 1    
Max < 0ēC 0   5mm 2   6h  sun 16   Hail 4    
Max > 10 27   10mm 0   9h  sun 10   Thunder 1    
Max > 20 4   25mm 0   12h sun 2   Fog at 09Z 0    
Max > 30 0         15h sun 0   Gale 0    
                         
Notable events during the month:                  
Maximum of 26.4ēC on the 16th was the highest in April since the same date in 1949.          
Only 8.1mm of rain fell during the 47-day period from 8th March to 23rd April.            
31-day sunshine total of 228.7h from 19th March to 18th April