Monthly Climate Summary for February 2009 at Hampstead  
                        home daily
                  Cold and wintry at first, becoming rather mild and dry after mid-month   back forward
                       
Overall mean temperature was 4.4 ēC which is 0.0 degC compared with the 1971-2000 average
Mean day maximum (09-21) was 7.0 ēC              
Mean night minimum (21-09) was 1.8 ēC              
Mean 24hr maximum (09-09) was 7.0 ēC which is -0.2 degC compared with the 1971-2000 average
Mean 24hr minimum (09-09) was 1.7 ēC which is +0.2 degC compared with the 1971-2000 average
  Highest day max was 14.2 ēC on  the   27          
  Lowest day max was -0.1 ēC on  the 2          
  Highest night min was 7.7 ēC on  the 25          
  Lowest night min was -3.7 ēC on  the 2          
  Lowest grass min was -6.9 ēC on  the 7          
                       
Total rainfall this month was 44.2 mm which is 110.6 per  cent of the 1971-2000 average  
  Highest daily fall was 18.5 mm on  the 9          
Number of hours with rain was 67.0 hrs              
Equiv. TSR rainfall duration was 46.9 hrs which is 99.8 per  cent of the 1971-2000 average  
  Highest no of wet hrs 19.0 hrs on  the 9          
  Highest equiv duration 15.8 hrs on  the 9          
Mean rainfall intensity 0.94 mm/h              
                       
Total sunshine this month was 67.6 hrs which is 110.5 per  cent of the 1971-2000 average  
Equiv. C/S sunshine total was 74.4 hrs which is 110.5 per  cent of the 1971-2000 average  
  Highest daily sun was 7.3 hrs on  the 21          
                       
Maximum  snow depth  was 16.0 cm on the 2          
                       
Mean sea-level pressure at 09Z 1016.1 mbar which is +0.7 mbar compared with the 1961-1990 average
  Highest pressure at 09Z 1032.7 mbar on  the 21          
  Lowest  pressure at 09Z 988.3 mbar on  the 5          
                       
Number of days with:                    
Air Frost 12   0.2mm rain 16   No  sun 5   Snow lying 7  
Grnd Frost 15   1.0mm 8   3h  sun 11   Snow/sleet 7  
Max < 0ēC 1   5mm 2   6h  sun 1   Hail 2  
Max > 10 7   10mm 1   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: