Monthly Climate Summary for February 2011 at Hampstead  
                        home daily
                   A very 'westerly' first half followed by a week of southeasterlies   back forward
                       
Overall mean temperature was 6.4 ēC which is 2.1 degC compared with the 1971-2000 average
Mean day maximum (09-21) was 8.7 ēC              
Mean night minimum (21-09) was 4.4 ēC              
Mean 24hr maximum (09-09) was 8.8 ēC which is 1.6 degC compared with the 1971-2000 average
Mean 24hr minimum (09-09) was 4.1 ēC which is 2.6 degC compared with the 1971-2000 average
  Highest day max was 13.8 ēC on  the   24          
  Lowest day max was 2.9 ēC on  the 28          
  Highest night min was 10.3 ēC on  the 5          
  Lowest night min was -3.3 ēC on  the 1          
  Lowest grass min was -7.0 ēC on  the 8          
                       
Total rainfall this month was 55.9 mm which is 139.7 per  cent of the 1971-2000 average  
  Highest daily fall was 14.1 mm on  the 10          
Number of hours with rain was 82.0 hrs              
Equiv. TSR rainfall duration was 57.4 hrs which is 122.1 per  cent of the 1971-2000 average  
  Highest no of wet hrs 11.0 hrs on  the 10          
  Highest equiv duration 9.1 hrs on  the 10          
Mean rainfall intensity 0.97 mm/h              
                       
Total sunshine this month was 44.3 hrs which is 72.4 per  cent of the 1971-2000 average  
Equiv. C/S sunshine total was 48.7 hrs which is 72.4 per  cent of the 1971-2000 average  
  Highest daily sun was 7.5 hrs on  the 8          
                       
Maximum  snow depth  was 0.0 cm on the            
                       
Mean sea-level pressure at 09Z 1015.3 mbar which is -0.1 mbar compared with the 1961-1990 average
  Highest pressure at 09Z 1029.3 mbar on  the 28          
  Lowest  pressure at 09Z 993.9 mbar on  the 15          
                       
Number of days with:                    
Air Frost 1   0.2mm rain 18   No  sun 11   Snow lying 0  
Grnd Frost 8   1.0mm 13   3h  sun 8   Snow/sleet 0  
Max < 0ēC 0   5mm 2   6h  sun 1   Hail 0  
Max > 10 10   10mm 2   9h  sun 0   Thunder 0  
Max > 20 0   25mm 0   12h sun 0   Fog at 09Z 0  
Max > 30 0         15h sun 0   Gale 0  
                       
Notable events during the month: