Monthly Climate Summary for December 2009 at Milhaguet, Haute Vienne
                          home daily
                       Mild changeable start; intensely cold third week with some snow       back forward
                         
Overall mean temperature was 3.7 ēC which is -0.6 degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 6.0 ēC which is -1.4 degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 1.3 ēC which is +0.2 degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 6.0 ēC                
Mean 24hr minimum (09-09) was 0.4 ēC                
  Highest day max was 12.2 ēC on  the   9            
  Lowest day max was -3.8 ēC on  the 19            
  Highest night min was 8.4 ēC on  the 7            
  Lowest night min was -10.2 ēC on  the 19            
  Lowest grass min was   ēC on  the              
                         
Total rainfall this month was 120.5 mm which is 102.1 per  cent of the 1971-2000 average    
  Highest daily fall was 13.9 mm on  the 21            
Number of hours with rain was                    
AWS  rainfall duration was 41.9 hrs which is   per  cent of the 1971-2000 average    
  Highest no of wet hrs   hrs on  the              
  Highest duration 5.4 hrs on  the 21            
  Mean rainfall intensity 2.87 mm/hr                
                         
Total est sunshine this month was 9.5 hrs which is 190.0 per  cent of the 1971-2000 average    
Equiv. C/S sunshine total was   hrs which is   per  cent of the 1971-2000 average    
  Highest daily sun was 2.0 hrs on  the 8            
                         
Maximum  snow depth  was 8.0 cm on  the  20            
                         
Mean sea-level pressure at 09Z 1011.8 mbar which is -6.8 mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1031.4 mbar on  the 10            
  Lowest  pressure at 09Z 986.6 mbar on  the 24            
                         
Total number of days with:                      
Air Frost 11   0.2mm rain 21   No  sun 15   Snow lying 4    
Grnd Frost 0   1.0mm 17   3h  sun 0   Snow/sleet 7    
Max < 0ēC 6   5mm 10   6h  sun 0   Hail 0    
Max > 10 7   10mm 5   9h  sun 0   Thunder 1    
Max > 20 0   25mm 0   12h sun 0   Fog at 09Z 9    
Max > 30 0         15h sun 0   Gale 0    
                         
Notable events during the month: