Monthly Climate Summary for November 2011 at Hampstead  
                        home daily
                             Warmest since 1994; also very dry and often foggy   back forward
                       
Overall mean temperature was 9.9 ēC which is 2.8 degC compared with the 1971-2000 average
Mean day maximum (09-21) was 12.2 ēC              
Mean night minimum (21-09) was 7.9 ēC              
Mean 24hr maximum (09-09) was 12.5 ēC which is 2.7 degC compared with the 1971-2000 average
Mean 24hr minimum (09-09) was 7.2 ēC which is 2.9 degC compared with the 1971-2000 average
  Highest day max was 16.6 ēC on  the   3          
  Lowest day max was 7.8 ēC on  the 16          
  Highest night min was 13.6 ēC on  the 3          
  Lowest night min was 1.8 ēC on  the 23          
  Lowest grass min was -4.5 ēC on  the 28          
                       
Total rainfall this month was 34.3 mm which is 53.6 per  cent of the 1971-2000 average  
  Highest daily fall was 22.5 mm on  the 3          
Number of hours with rain was 49.0 hrs              
Equiv. TSR rainfall duration was 34.3 hrs which is 59.1 per  cent of the 1971-2000 average  
  Highest no of wet hrs 13.0 hrs on  the 3          
  Highest equiv duration 10.8 hrs on  the 3          
Mean rainfall intensity   1.00 mm/h              
                       
Total sunshine this month was 63.7 hrs which is 101.1 per  cent of the 1971-2000 average  
Equiv. C/S sunshine total was 70.1 hrs which is 101.1 per  cent of the 1971-2000 average  
  Highest daily sun was 6.8 hrs on  the 13          
                       
Maximum  snow depth  was 2.0 cm on the 30          
                       
Mean sea-level pressure at 09Z 1018.2 mbar which is 3.7 mbar compared with the 1961-1990 average
  Highest pressure at 09Z 1029.6 mbar on  the 24          
  Lowest  pressure at 09Z 995.2 mbar on  the 3          
                       
Number of days with:                    
Air Frost 0   0.2mm rain 16   No  sun 4   Snow lying 0  
Grnd Frost 3   1.0mm 5   3h  sun 9   Snow/sleet 0  
Max < 0ēC 0   5mm 1   6h  sun 3   Hail 0  
Max > 10 25   10mm 1   9h  sun 0   Thunder 0  
Max > 20 0   25mm 0   12h sun 0   Fog at 09Z 8  
Max > 30 0         15h sun 0   Gale 0  
                       
Notable events during the month: