Monthly Climate Summary for November 2009 at Luton (Cranleigh Gardens)
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                               Wettest November since 1970;  warmest since 1994       back forward
                         
Overall mean temperature was 8.4 ēC which is +1.7 degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 10.9 ēC which is +1.4 degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 5.9 ēC which is +2.0 degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 11.0 ēC                
Mean 24hr minimum (09-09) was 5.9 ēC                
  Highest day max was 15.7 ēC on  the   1            
  Lowest day max was 5.5 ēC on  the 30            
  Highest night min was 11.5 ēC on  the 20            
  Lowest night min was -0.1 ēC on  the 9            
  Lowest grass min was -3.2 ēC on  the 9            
                         
Total rainfall this month was 144.2 mm which is 226.0 per  cent of the 1971-2000 average    
  Highest daily fall was 19.5 mm on  the 12            
Number of hours with rain was                    
Equiv. TSR rainfall duration was 76.5 hrs which is 119.9 per  cent of the 1971-2000 average    
  Highest no of wet hrs   hrs on  the              
  Highest duration 10.0 hrs on  the 7            
  Mean rainfall intensity 1.88 mm/hr                
                         
Total CS sunshine this month was 62.4 hrs which is 89.9 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 6.8 hrs on  the 7            
                         
Maximum  snow depth  was 0.0 cm on  the               
                         
Mean sea-level pressure at 09Z 1001.2 mbar which is -12.9 mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1020.4 mbar on  the 9            
  Lowest  pressure at 09Z 985.6 mbar on  the 29            
                         
Number of days with:                      
Air Frost 1   0.2mm rain 25   No  sun 4   Snow lying 0    
Grnd Frost 7   1.0mm 20   3h  sun 10   Snow/sleet 0    
Max < 0ēC 0   5mm 10   6h  sun 3   Hail 1    
Max > 10 20   10mm 6   9h  sun 0   Thunder 1    
Max > 20 0   25mm 0   12h sun 0   Fog at 09Z 2    
Max > 30 0         15h sun 0   Gale 0    
                         
Notable events during the month: