Monthly Climate Summary for August 2006 at Hampstead  
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                   A very cloudy month with frequent rain; persistently cool from the 9th   back forward
                       
Overall mean temperature was 17.0 ēC which is -0.2 degC compared with the 1971-2000 average
Mean day maximum (09-21) was 21.3 ēC              
Mean night minimum (21-09) was 12.8 ēC              
Mean 24hr maximum (09-09) was 21.3 ēC which is -0.5 degC compared with the 1971-2000 average
Mean 24hr minimum (09-09) was 12.8 ēC which is +0.2 degC compared with the 1971-2000 average
  Highest day max was 28.6 ēC on  the   6          
  Lowest day max was 16.7 ēC on  the 14          
  Highest night min was 18.3 ēC on  the 7          
  Lowest night min was 9.3 ēC on  the 25          
  Lowest grass min was 0.3 ēC on  the 8          
                       
Total rainfall this month was 74.8 mm which is 120.6 per  cent of the 1971-2000 average  
  Highest daily fall was 20.0 mm on  the 23          
Number of hours with rain was 71.0 hrs              
Equiv. TSR rainfall duration was 49.7 hrs which is 146.2 per  cent of the 1971-2000 average  
  Highest no of wet hrs 11.0 hrs on  the 23          
  Highest equiv duration 9.1 hrs on  the 23          
Mean rainfall intensity 1.51 mm/h              
                       
Total sunshine this month was 128.0 hrs which is 74.5 per  cent of the 1971-2000 average  
Equiv. C/S sunshine total was 140.9 hrs which is 74.5 per  cent of the 1971-2000 average  
  Highest daily sun was 10.5 hrs on  the 8          
                       
Maximum  snow depth  was 0.0 cm on the            
                       
Mean sea-level pressure at 09Z 1013.8 mbar which is -2.5 mbar compared with the 1961-1990 average
  Highest pressure at 09Z 1025.0 mbar on  the 8          
  Lowest  pressure at 09Z 1002.0 mbar on  the 17          
                       
Number of days with:                    
Air Frost 0   0.2mm rain 19   No  sun 1   Snow lying 0  
Grnd Frost 0   1.0mm 13   3h  sun 18   Snow/sleet 0  
Max < 0ēC 0   5mm 3   6h  sun 7   Hail 0  
Max > 10 31   10mm 2   9h  sun 2   Thunder 5  
Max > 20 24   25mm 0   12h sun 0   Fog at 09Z 0  
Max > 30 0         15h sun 0   Gale 0  
                       
Notable events during the month: