Monthly Climate Summary for   May   2008  at Luton (Cranleigh Gardens)
                          home daily
                       Dry, sunny and warm until mid-month; some heavy downpours during the last week                              back forward
                         
Overall mean temperature was 13.7 ēC which is +2.1 degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 18.8 ēC which is +2.3 degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 8.6 ēC which is +1.9 degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 18.8 ēC                
Mean 24hr minimum (09-09) was 8.6 ēC                
  Highest day max was 26.4 ēC on  the   11                 
  Lowest day max was 11.5 ēC on  the 26            
  Highest night min was 12.7 ēC on  the 31            
  Lowest night min was 0.6 ēC on  the 19            
  Lowest grass min was -3.7 ēC on  the 20            
                         
Total rainfall this month was 97.7 mm which is 183.6 per  cent of the 1971-2000 average    
  Highest daily fall was 35.1 mm on  the 24            
Number of hours with rain was                    
Equiv. TSR rainfall duration was 66.5 hrs which is 224.7 per  cent of the 1971-2000 average    
  Highest no of wet hrs   hrs on  the              
  Highest duration 17.0 hrs on  the 11            
  Mean rainfall intensity 1.47 mm/hr                
                         
Total CS sunshine this month was 170.0 hrs which is 92.0 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 13.6 hrs on  the 11            
                         
Maximum  snow depth  was 0.0 cm on  the               
                         
Mean sea-level pressure at 09Z 1015.2 mbar which is +0.1 mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1025.6 mbar on  the 5            
  Lowest  pressure at 09Z 1001.5 mbar on  the 28            
                         
Number of days with:                      
Air Frost 0   0.2mm rain 15   No  sun 5   Snow lying 0    
Grnd Frost 6   1.0mm 10   3h  sun 19   Snow/sleet 0    
Max < 0ēC 0   5mm 6   6h  sun 15   Hail 0    
Max > 10 31   10mm 2   9h  sun 7   Thunder 2    
Max > 20 14   25mm 1   12h sun 5   Fog at 09Z 1    
Max > 30 0         15h sun 0   Gale 0    
                         
Notable events during the month:                  
115.6 hours of sunshine 1st-14th (8.2h per day);  54.4hours 15th-31st (3.2h per day)          
83.4mm of rain fell between the 24th and 29th (within 132h)