Monthly Climate Summary for December 1993 at Whipsnade, Beds
                          home daily
                              Unsettled, windy, and very wet. Brief wintry spell 25th-28th       back forward
                         
Overall mean temperature was 4.6 ēC which is +0.7 degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 6.7 ēC which is +0.5 degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 2.5 ēC which is +1.0 degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 7.2 ēC                
Mean 24hr minimum (09-09) was 1.7 ēC                
  Highest day max was 12.9 ēC on  the   19            
  Lowest day max was -0.3 ēC on  the 27            
  Highest night min was 10.2 ēC on  the 19            
  Lowest night min was -2.9 ēC on  the 27            
  Lowest grass min was   ēC on  the              
                         
Total rainfall this month was 117.4 mm which is 165.4 per  cent of the 1971-2000 average    
  Highest daily fall was 13.8 mm on  the 12            
Number of hours with rain was                    
Equiv. TSR rainfall duration was   hrs which is   per  cent of the 1971-2000 average    
  Highest no of wet hrs   hrs on  the              
  Highest duration   hrs on  the              
  Mean rainfall intensity   mm/hr                
                         
Total CS sunshine this month was 56.5 hrs which is 116.5 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 5.8 hrs on  the 9            
                         
Maximum  snow depth  was 1.0 cm on  the  22            
                         
Mean sea-level pressure at 09Z 1005.2 mbar which is -9.4 mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1026.4 mbar on  the 5            
  Lowest  pressure at 09Z 980.4 mbar on  the 15            
                         
Number of days with:                      
Air Frost 7   0.2mm rain 23   No  sun 10   Snow lying 1    
Grnd Frost   1.0mm 20   3h  sun 11   Snow/sleet 10    
Max < 0ēC 1   5mm 9   6h  sun 0   Hail 0    
Max > 10 7   10mm 4   9h  sun 0   Thunder 0    
Max > 20 0   25mm 0   12h sun 0   Fog at 09Z 3    
Max > 30 0         15h sun 0   Gale 3    
                         
Notable events during the month:                  
Snow lay 4cm deep on the morning of the 28th, but a thaw quickly followed