It's a new month, so I thought you might be interested in seeing what an average May looks like and what the outlook is for the month ahead. Let's start with the average May weather...
An average high of 78 on the 1st of month, warms to 85 by the 31st. We're actually going to be pretty close to that number today, but cooler weather is expected by the weekend. Average low temperatures warm also, from a cool 55 at the start of the month to a still mild 64 by the end. The hottest May temperature is 99, which we've hit on the 27th (1926), the 29th (1914) and the 30th (also 1914). Our record low for the month is 32 (2 May 1909 and 7 May 1944). Rainfall averages 5.11". The spread ranges from only .32" in 1951 to 11.88" in 1983.
Our spring so far has been characterized by cooler and wetter than average conditions. And it looks like overall that trend may continue for the next 31 days. Our friends at the Climate Prediction Center analyze global weather patterns and past weather cycles to put together monthly and seasonal outlooks. Here's what they're saying about May 2013.
The map above highlights the expected temperature trend for May. Areas from the central plains to the Gulf Coast are likely to be cooler than average for the month as a whole. That includes us in north Alabama and southern Tennesee where there's a 30-40% chance we'll continue that cool trend we've seen this spring.
The above map shows areas that are expected to have greater chances of either above or below average rainfall. We are just on the edge of the wetter than average area, with around a 30% chance that May 2013 will turn out wetter than normal.
WAFF 48 Storm Team