Monthly Climate Summary for December 2006 at Hampstead  
                        home daily
       Very mild & unsettled first half; cold and foggy before Christmas; mild, wet end   back forward
                       
Overall mean temperature was 6.4 ēC which is +1.4 degC compared with the 1971-2000 average
Mean day maximum (09-21) was 8.6 ēC              
Mean night minimum (21-09) was 4.8 ēC              
Mean 24hr maximum (09-09) was 8.9 ēC which is +1.4 degC compared with the 1971-2000 average
Mean 24hr minimum (09-09) was 3.9 ēC which is +1.4 degC compared with the 1971-2000 average
  Highest day max was 13.5 ēC on  the   4          
  Lowest day max was 0.2 ēC on  the 22          
  Highest night min was 11.6 ēC on  the 5          
  Lowest night min was -2.9 ēC on  the 22          
  Lowest grass min was -6.5 ēC on  the 21          
                       
Total rainfall this month was 68.2 mm which is 103.3 per  cent of the 1971-2000 average  
  Highest daily fall was 9.5 mm on  the 6          
Number of hours with rain was 100.0 hrs              
Equiv. TSR rainfall duration was 70.0 hrs which is 122.8 per  cent of the 1971-2000 average  
  Highest no of wet hrs 11.0 hrs on  the 1          
  Highest equiv duration 9.1 hrs on  the 1          
                       
Total sunshine this month was 55.5 hrs which is 123.4 per  cent of the 1971-2000 average  
Equiv. C/S sunshine total was 61.1 hrs which is 123.4 per  cent of the 1971-2000 average  
  Highest daily sun was 5.9 hrs on  the 17          
                       
Maximum  snow depth  was 0.0 cm on the 30          
                       
Mean sea-level pressure at 09Z 1020.0 mbar which is +5.0 mbar compared with the 1961-1990 average
  Highest pressure at 09Z 1043.7 mbar on  the 22          
  Lowest  pressure at 09Z 984.2 mbar on  the 8          
                       
Number of days with:                    
Air Frost 6   0.2mm rain 22   No  sun 11   Snow lying 0  
Grnd Frost 10   1.0mm 12   3h  sun 13   Snow/sleet 0  
Max < 0ēC 0   5mm 6   6h  sun 1   Hail 0  
Max > 10 16   10mm 0   9h  sun 0   Thunder 1  
Max > 20 0   25mm 0   12h sun 0   Fog at 09Z 3  
Max > 30 0         15h sun 0   Gale 0  
                       
Notable events during the month:                 
Warmest December since 1988