Monthly Climate Summary for September 2006  at Luton (Cranleigh Gardens)
                          home daily
                                         Warmest September on record, nights particularly warm; quite sunny too                            back forward
                         
Overall mean temperature was 17.8 ēC which is +3.7 degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 22.1 ēC which is +3.7 degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 13.4 ēC which is +3.7 degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 22.1 ēC                
Mean 24hr minimum (09-09) was 13.4 ēC                
  Highest day max was 29.2 ēC on  the   11                 
  Lowest day max was 17.7 ēC on  the 22            
  Highest night min was 17.8 ēC on  the 5            
  Lowest night min was 5.6 ēC on  the 8            
  Lowest grass min was 3.7 ēC on  the 8            
                         
Total rainfall this month was 50.9 mm which is 79.4 per  cent of the 1971-2000 average    
  Highest daily fall was 14.4 mm on  the 22            
Number of hours with rain was                    
TSR rainfall duration was 24.7 hrs which is 60.7 per  cent of the 1971-2000 average    
  Highest no of wet hrs   hrs on  the              
  Highest duration 5.3 hrs on  the 22            
  Mean rainfall intensity 2.06 mm/hr                
                         
Total CS sunshine this month was 175.2 hrs which is 128.4 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 11.6 hrs on  the 7            
                         
Maximum  snow depth  was 0.0 cm on  the               
                         
Mean sea-level pressure at 09Z 1013.6 mbar which is -2.8 mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1032.3 mbar on  the 8            
  Lowest  pressure at 09Z 1002.4 mbar on  the 14            
                         
Number of days with:                      
Air Frost 0   0.2mm rain 16   No  sun 1   Snow lying 0    
Grnd Frost 0   1.0mm 8   3h  sun 22   Snow/sleet 0    
Max < 0ēC 0   5mm 3   6h  sun 16   Hail 0    
Max > 10 30   10mm 2   9h  sun 7   Thunder 3    
Max > 20 23   25mm 0   12h sun 0   Fog at 09Z 2    
Max > 30 0         15h sun 0   Gale 0    
                         
Notable events during the month: