What precise area does the South East England regional total cover? It does look as though there have been some considerable variations in rainfall across it, as we only had 59% of the local LTA in August, and I think that 'fairweather' posting from Essex has also seen a dry month. I think it comes down to the rain having come in storms of torrential rainfall which dumped large amounts in some places and nothing at all in others. If the official recording stations have been in places that got hit by the heavy rainfall, this would give an imprecise view of the overall picture.
It is also worth noting that here the year total to end August is exactly 100% of the LTA total for that period, which would give the impression that rainfall had been normal in this part of the country. But that would be entirely misleading because the figure was substantially affected by the very wet February (275% of monthly LTA) which was followed by weeks of desiccating NE winds which turned the ground from a quagmire to bone dry, combined with 5 months of below average rainfall (Apr-Aug here has given 59% of LTA for those months), resulting in an agricultural drought.
This all just goes to show that averaged statistics (whether averaged over space or time - or both) can give a misleading impression if local and temporal variations from the average are not taken into account. It all reminds me of the joke that someone with his head in an oven and his feet in a freezer is, on average, perfectly comfortable.
Originally Posted by: AJ*