Temperatures

Average maximum 21.1°C
Average minimum 7.3°C
Average (15 min) 14.4°C
Average (max+min) 14.2°C
Maximum 27.1°C 17th
Minimum 0.9°C 24th
Lowest maximum 14.3°C 23rd
Highest minimum 11.3°C 9th

Humidity

Max percentage 99% 5th and 14th
Min percentage 22% 14th

Max dewpoint 17.7°C 17th
Min dewpoint -1.1°C 23rd

Wind

Max 10 min speed 14.5 kph 22nd
Max gust speed 46.7 kph 22nd
Predominate dir N (17%)

Barometric pressure

Maximum 1033 hpa 24th
Minimum 1000 hpa 22nd
Average 1020 hpa

Rainfall total 9.4mm
Rainfall max rate 23.9 mm/hr 6th
No of rain days 5 over 0.2mm 2 over 2mm

Total rainfall for August and September 15.7mm; the plants in the garden
are showing the effects - A very marked change from late summer to
early autumn weather on the 22nd as since then the maximum temperature
has been 20°C. Up to the 22nd only five September days had maxima
20°C.


Alan Gardiner
Chiswell Green, St Albans
N51:44 W00:22
101m ASL