Monthly Climate Summary for  July  1983 at Whipsnade,  Beds
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                                         Dry and sunny; very hot especially mid-month       back forward
                         
Overall mean temperature was 19.4 ēC which is +3.5 degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 24.9 ēC which is +4.3 degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 13.9 ēC which is +2.7 degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 24.9 ēC                
Mean 24hr minimum (09-09) was 13.9 ēC                
  Highest day max was 30.8 ēC on  the   16            
  Lowest day max was 18.1 ēC on  the 20            
  Highest night min was 18.8 ēC on  the 16            
  Lowest night min was 7.7 ēC on  the 1            
  Lowest grass min was 6.6 ēC on  the 21            
                         
Total rainfall this month was 23.4 mm which is 47.8 per  cent of the 1971-2000 average    
  Highest daily fall was 9.9 mm on  the 31            
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 250.1 hrs which is 131.4 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 14.3 hrs on  the 5            
                         
Maximum  snow depth  was 0.0 cm on  the               
                         
Mean sea-level pressure at 09Z 1019.3 mbar which is +2.0 mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1028.0 mbar on  the 20            
  Lowest  pressure at 09Z 1009.6 mbar on  the 24            
                         
Number of days with:                      
Air Frost 0   0.2mm rain 7   No  sun 0   Snow lying 0    
Grnd Frost 0   1.0mm 6   3h  sun 26   Snow/sleet 0    
Max < 0ēC 0   5mm 1   6h  sun 19   Hail 1    
Max > 10 31   10mm 0   9h  sun 15   Thunder 7    
Max > 20 29   25mm 0   12h sun 7   Fog at 09Z 0    
Max > 30 1         15h sun 0   Gale 0    
                         
Notable events during the month:                  
The temperature reached or exceeded 25ēC on sixteen days, but reached 30ēC on only one. Several nearby thunderstorms, but none passed  20th
overhead.