Last year was the driest since records began. Well, since our records began in June 2005, when we started collecting rainfall statistics in our Cambridgeshire garden. The annual rainfall (in mm) since then shows last year very dry, with 2010 on the dry side.
|annual rainfall, in mm|
|average (mean and median) monthly rainfall, in mm|
However, plotting both mean and median points out an anomaly in the April value. Its mean is much higher than its median, indicating a skewed distribution. Let's look at April in more detail:
|April rainfall, in mm|
So yes, it really has been wet. And it's not only our garden, and our short measurement span. It has in fact been the wettest April in the UK for over a hundred years. But it's still officially a drought.