Monthly Climate Summary for  May  2007  at Hampstead  
                        home daily
                                    Dull and very wet;  variable temperatures   back forward
                       
Overall mean temperature was 12.9 ēC which is +0.9 degC compared with the 1971-2000 average
Mean day maximum (09-21) was 16.8 ēC              
Mean night minimum (21-09) was 8.8 ēC              
Mean 24hr maximum (09-09) was 17.0 ēC which is +0.7 degC compared with the 1971-2000 average
Mean 24hr minimum (09-09) was 8.7 ēC which is +1.1 degC compared with the 1971-2000 average
  Highest day max was 24.8 ēC on  the   24          
  Lowest day max was 6.8 ēC on  the 28          
  Highest night min was 13.1 ēC on  the 25          
  Lowest night min was 3.5 ēC on  the 29          
  Lowest grass min was 0.5 ēC on  the 29          
                       
Total rainfall this month was 95.0 mm which is 161.1 per  cent of the 1971-2000 average  
  Highest daily fall was 29.0 mm on  the 27          
Number of hours with rain was 126.0 hrs              
Equiv. TSR rainfall duration was 88.2 hrs which is 245.0 per  cent of the 1971-2000 average  
  Highest no of wet hrs 21.0 hrs on  the 27          
  Highest equiv duration 17.4 hrs on  the 27          
Mean rainfall intensity 1.08 mm/h              
                       
Total sunshine this month was 132.1 hrs which is 73.4 per  cent of the 1971-2000 average  
Equiv. C/S sunshine total was 145.3 hrs which is 73.4 per  cent of the 1971-2000 average  
  Highest daily sun was 12.2 hrs on  the 23          
                       
Maximum  snow depth  was 0.0 cm on the            
                       
Mean sea-level pressure at 09Z 1012.4 mbar which is -2.8 mbar compared with the 1961-1990 average
  Highest pressure at 09Z 1024.7 mbar on  the 23          
  Lowest  pressure at 09Z 998.4 mbar on  the 27          
                       
Number of days with:                    
Air Frost 0   0.2mm rain 19   No  sun 3   Snow lying 0  
Grnd Frost 0   1.0mm 16   3h  sun 17   Snow/sleet 0  
Max < 0ēC 0   5mm 6   6h  sun 10   Hail 0  
Max > 10 30   10mm 2   9h  sun 4   Thunder 0  
Max > 20 6   25mm 1   12h sun 1   Fog at 09Z 0  
Max > 30 0         15h sun 0   Gale 0  
                       
Notable events during the month: