Monthly Climate Summary for December 2005 at Hampstead  
                        home daily
            Wet first week and last two days, otherwise dry, very sunny, and rather cold   back forward
                       
Overall mean temperature was 4.6 ēC which is -0.4 degC compared with the 1971-2000 average
Mean day maximum (09-21) was 7.2 ēC              
Mean night minimum (21-09) was 2.6 ēC              
Mean 24hr maximum (09-09) was 7.5 ēC which is 0.0 degC compared with the 1971-2000 average
Mean 24hr minimum (09-09) was 1.7 ēC which is -0.8 degC compared with the 1971-2000 average
  Highest day max was 12.1 ēC on  the   24          
  Lowest day max was 0.2 ēC on  the 29          
  Highest night min was 7.8 ēC on  the 16          
  Lowest night min was -4.2 ēC on  the 18          
  Lowest grass min was -4.8 ēC on  the 28          
                       
Total rainfall this month was 42.7 mm which is 64.7 per  cent of the 1971-2000 average  
  Highest daily fall was 19.6 mm on  the 30          
Number of hours with rain was 62.0 hrs              
Equiv. TSR rainfall duration was 43.4 hrs which is 76.1 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 82.7 hrs which is 183.9 per  cent of the 1971-2000 average  
Equiv. C/S sunshine total was 91.0 hrs which is 183.9 per  cent of the 1971-2000 average  
  Highest daily sun was 6.1 hrs on  the 19          
                       
Maximum  snow depth  was 2.0 cm on the 30          
                       
Mean sea-level pressure at 09Z 1018.3 mbar which is +3.3 mbar compared with the 1961-1990 average
  Highest pressure at 09Z 1041.1 mbar on  the 10          
  Lowest  pressure at 09Z 982.2 mbar on  the 2          
                       
Number of days with:                    
Air Frost 8   0.2mm rain 18   No  sun 2   Snow lying 4  
Grnd Frost 27   1.0mm 5   3h  sun 13   Snow/sleet 3  
Max < 0ēC 0   5mm 3   6h  sun 1   Hail 0  
Max > 10 5   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:                 
Driest, sunniest and coldest December since 2001      
Only 3.4mm rain fell between the 8th and 28th inc.