Monthly Climate Summary for  April  2008  at Hampstead  
                        home daily
                Cold and showery between the 5th and 19th; notably snowfall on the 6th   back forward
                       
Overall mean temperature was 8.8 ēC which is +0.4 degC compared with the 1971-2000 average
Mean day maximum (09-21) was 12.9 ēC              
Mean night minimum (21-09) was 4.7 ēC              
Mean 24hr maximum (09-09) was 13.0 ēC which is +0.6 degC compared with the 1971-2000 average
Mean 24hr minimum (09-09) was 4.7 ēC which is +0.3 degC compared with the 1971-2000 average
  Highest day max was 21.1 ēC on  the   26          
  Lowest day max was 4.4 ēC on  the 6          
  Highest night min was 13.4 ēC on  the 27          
  Lowest night min was -1.7 ēC on  the 7          
  Lowest grass min was -5.1 ēC on  the 15          
                       
Total rainfall this month was 56.1 mm which is 100.3 per  cent of the 1971-2000 average  
  Highest daily fall was 14.7 mm on  the 29          
Number of hours with rain was 66.0 hrs              
Equiv. TSR rainfall duration was 46.2 hrs which is 110.0 per  cent of the 1971-2000 average  
  Highest no of wet hrs 12.0 hrs on  the 29          
  Highest equiv duration 10.0 hrs on  the 29          
                       
Total sunshine this month was 135.6 hrs which is 106.1 per  cent of the 1971-2000 average  
Equiv. C/S sunshine total was 149.1 hrs which is 106.1 per  cent of the 1971-2000 average  
  Highest daily sun was 9.1 hrs on  the 22          
                       
Maximum  snow depth  was 6.0 cm on  the 6          
                       
Mean sea-level pressure at 09Z 1011.3 mbar which is -3.9 mbar compared with the 1961-1990 average
  Highest pressure at 09Z 1031.3 mbar on  the 3          
  Lowest  pressure at 09Z 987.3 mbar on  the 30          
                       
Number of days with:                    
Air Frost 5   0.2mm rain 17   No  sun 2   Snow lying 1  
Grnd Frost 9   1.0mm 13   3h  sun 23   Snow/sleet 1  
Max < 0ēC 0   5mm 4   6h  sun 10   Hail 3  
Max > 10 24   10mm 1   9h  sun 2   Thunder 1  
Max > 20 1   25mm 0   12h sun 0   Fog at 09Z 0  
Max > 30 0         15h sun 0   Gale 0  
                       
Notable events during the month: