Monthly Climate Summary for September 2003 at Milhaguet (Carreau)
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         Changeable with alternating warm and cool spells. Heavy rain 5th-10th.     Back Forward
                       
Overall mean temperature was 15.7 ēC which is -0.5 degC compared with the 1971-2000 average
Mean day maximum (09-21) was 21.9 ēC which is -1.3 degC compared with the 1971-2000 average
Mean night minimum (21-09) was 9.5 ēC which is +0.3 degC compared with the 1971-2000 average
Mean 24hr maximum (09-09) was 21.9 ēC              
Mean 24hr minimum (09-09) was 9.5 ēC              
  Highest day max was 27.1 ēC on  the   18          
  Lowest day max was 16.0 ēC on  the 8          
  Highest night min was 13.9 ēC on  the 22          
  Lowest night min was 4.4 ēC on  the 24          
  Lowest grass min was 2.2 ēC on  the 25          
                       
Total rainfall this month was 73.3 mm which is 80.5 per  cent of the 1971-2000 average  
  Highest daily fall was 17.8 mm on  the 5          
Number of hours with rain was 63.0 hrs              
Equiv. TSR rainfall duration was 44.1 hrs which is   per  cent of the 1971-2000 average  
  Highest no of wet hrs 18.0 hrs on  the 8          
  Highest equiv duration 14.4 hrs on  the 8          
                       
Total sunshine this month was 168.6 hrs which is 92.6 per  cent of the 1971-2000 average  
Equiv. C/S sunshine total was 185.5 hrs which is 92.6 per  cent of the 1971-2000 average  
  Highest daily sun was 9.4 hrs on  the 3          
                       
Maximum  snow depth  was 0.0 cm on  the             
                       
Mean sea-level pressure at 09Z   mbar which is   mbar compared with the 1961-1990 average
  Highest pressure at 09Z   mbar on  the            
  Lowest  pressure at 09Z mbar on  the            
                       
Number of days with:                    
Air Frost 0   0.2mm rain 10   No  sun 0   Snow lying 0  
Grnd Frost 0   1.0mm 8   3h  sun 27   Snow/sleet 0  
Max < 0ēC 0   5mm 6   6h  sun 14   Hail 0  
Max > 10 30   10mm 2   9h  sun 1   Thunder 0  
Max > 20 21   25mm 0   12h sun 0   Fog at 09Z 0  
Max > 30 0   50mm 0   15h sun 0   Gale 0  
                       
Notable events during the month:                
Markedly cool, cloudy and wet period from  late on the 5th to the 10th, rainfall totalling 54mm        
Heavy thunderstorm rain on the evening of the 5th: 7.0mm in 5 mins, 12.3mm in 10 mins, 13.4mm in 15 mins, 14.3mm in 20 mins