Monthly Climate Summary for   July  2005  at Luton (Cranleigh Gardens)
                          home daily
                              Dull, cool and unsettled first week and last ten days; heatwave mid-month                              back forward
                         
Overall mean temperature was 17.2 ºC which is +0.1 degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 21.7 ºC which is -0.4 degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 12.8 ºC which is +0.7 degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 21.8 ºC                
Mean 24hr minimum (09-09) was 12.7 ºC                
  Highest day max was 30.8 ºC on  the   14                 
  Lowest day max was 14.1 ºC on  the 27            
  Highest night min was 16.9 ºC on  the 15            
  Lowest night min was 9.8 ºC on  the 5            
  Lowest grass min was 7.2 ºC on  the 5            
                         
Total rainfall this month was 40.4 mm which is 90.6 per  cent of the 1971-2000 average    
  Highest daily fall was 17.6 mm on  the 24            
Number of hours with rain was                    
TSR rainfall duration was 34.3 hrs which is 111.4 per  cent of the 1971-2000 average    
  Highest no of wet hrs   hrs on  the              
  Highest duration 9.0 hrs on  the 24            
  Mean rainfall intensity 1.18 mm/hr                
                         
Total CS sunshine this month was 180.2 hrs which is 94.7 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 14.5 hrs on  the 14            
                         
Maximum  snow depth  was 0.0 cm on  the               
                         
Mean sea-level pressure at 09Z 1015.4 mbar which is -1.9 mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1032.3 mbar on  the 11            
  Lowest  pressure at 09Z 1000.7 mbar on  the 25            
                         
Number of days with:                      
Air Frost 0   0.2mm rain 13   No  sun 1   Snow lying 0    
Grnd Frost 0   1.0mm 6   3h  sun 18   Snow/sleet 0    
Max < 0ºC 0   5mm 2   6h  sun 13   Hail 0    
Max > 10 31   10mm 1   9h  sun 10   Thunder 0    
Max > 20 20   25mm 0   12h sun 6   Fog at 09Z 1    
Max > 30 1         15h sun 0   Gale 0    
                         
Notable events during the month:                  
Remarkable sunshine contrasts: 1st-9th averaged 2.8hr per day; 10th-20th 11.8hr per day;  21st-31st 2.2hr per day.      
Max of 14.1°C on the 27th was the lowest in July since 1987              
Lowest min of 9.8°C on the 5th was the second highest extreme minimum on record for July (beaten only in 1991)      
Driest July since 1999