Monthly Climate Summary for  January 2007  at Luton (Cranleigh Gardens)
                          home daily
                        Exceptionally mild but very unsettled till the 20th, then a brief wintry episode. Mild at the end.   back forward
                         
Overall mean temperature was 6.9 ēC which is +2.9 degC compared with the 1971-2000 average  
Mean day maximum (09-21) was 9.5 ēC which is +3.1 degC compared with the 1971-2000 average  
Mean night minimum (21-09) was 4.4 ēC which is +2.7 degC compared with the 1971-2000 average  
Mean 24hr maximum (09-09) was 9.6 ēC                
Mean 24hr minimum (09-09) was 4.1 ēC                
  Highest day max was 13.4 ēC on  the   9                 
  Lowest day max was 3.4 ēC on  the 23            
  Highest night min was 11.3 ēC on  the 9            
  Lowest night min was -3.4 ēC on  the 26            
  Lowest grass min was -7.7 ēC on  the 26            
                         
Total rainfall this month was 76.0 mm which is 111.6 per  cent of the 1971-2000 average    
  Highest daily fall was 14.2 mm on  the 9            
Number of hours with rain was                    
Equiv. TSR rainfall duration was 76.4 hrs which is 112.0 per  cent of the 1971-2000 average    
  Highest no of wet hrs   hrs on  the              
  Highest duration 9.0 hrs on  the 31            
  Mean rainfall intensity 0.99 mm/hr                
                         
Total CS sunshine this month was 68.3 hrs which is 129.8 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 7.7 hrs on  the 31            
                         
Maximum  snow depth  was 1.5 cm on  the  24            
                         
Mean sea-level pressure at 09Z 1016.0 mbar which is +1.4 mbar compared with the 1961-1990 average  
  Highest pressure at 09Z 1031.8 mbar on  the 27            
  Lowest  pressure at 09Z 985.9 mbar on  the 18            
                         
Number of days with:                      
Air Frost 5   0.2mm rain 24   No  sun 8   Snow lying 1    
Grnd Frost 14   1.0mm 16   3h  sun 11   Snow/sleet 4    
Max < 0ēC 0   5mm 6   6h  sun 3   Hail 0    
Max > 10 17   10mm 2   9h  sun 0   Thunder 0    
Max > 20 0   25mm 0   12h sun 0   Fog at 09Z 0    
Max > 30 0         15h sun 0   Gale 1    
                         
Notable events during the month:                  
Warmest January since 1975 (only 1975 and 1921 were warmer)              
Sunshine: 24.6h 1st-18th,  43.7h 19th-31st