Monthly Climate Summary for  February 2009  at Luton (Cranleigh Gardens)
                          home daily
                        Cold with frequent snow during the first half; mild and dry second half     back forward
                         
Overall mean temperature was 4.0 ēC which is -0.2 degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 6.7 ēC which is -0.3 degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 1.3 ēC which is -0.1 degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 6.7 ēC                
Mean 24hr minimum (09-09) was 1.0 ēC                
  Highest day max was 13.8 ēC on  the   27                 
  Lowest day max was 0.0 ēC on  the 2            
  Highest night min was 7.0 ēC on  the 25            
  Lowest night min was -5.2 ēC on  the 3            
  Lowest grass min was -9.1 ēC on  the 12            
                         
Total rainfall this month was 74.1 mm which is 160.0 per  cent of the 1971-2000 average    
  Highest daily fall was 28.2 mm on  the 9            
Number of hours with rain was                    
Equiv. TSR rainfall duration was 63.3 hrs which is 123.2 per  cent of the 1971-2000 average    
  Highest no of wet hrs   hrs on  the              
  Highest duration 16.0 hrs on  the 21            
  Mean rainfall intensity 1.17 mm/hr                
                         
Total CS sunshine this month was 55.8 hrs which is 79.5 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 8.2 hrs on  the 21            
                         
Maximum  snow depth  was 16.0 cm on  the  6            
                         
Mean sea-level pressure at 09Z 1016.2 mbar which is +1.0 mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1032.3 mbar on  the 21            
  Lowest  pressure at 09Z 988.4 mbar on  the 5            
                         
Number of days with:                      
Air Frost 12   0.2mm rain 13   No  sun 10   Snow lying 13    
Grnd Frost 18   1.0mm 9   3h  sun 11   Snow/sleet 9    
Max < 0ēC 0   5mm 4   6h  sun 1   Hail 0    
Max > 10 6   10mm 3   9h  sun 0   Thunder 0    
Max > 20 0   25mm 1   12h sun 0   Fog at 09Z 1    
Max > 30 0         15h sun 0   Gale 0    
                         
Notable events during the month:                  
18cm level snow on the evening of the 6th, equals max depth in Feb 1991