Terrible winter? Blame it on the jet stream. Great summer? Praise be to the jet stream for being in the right place (i.e. not over the UK for a very pleasant change). But what exactly is this jet stream that everyone keeps talking about, and why does it have such a large influence on our weather?
Here in the UK we do like to moan about the weather. We especially like to moan if it exposes flaws in preparing for said weather, such as a dusting of snow crippling London's transport networks, or inadequate clean-up operations afterwards, as experienced in last winter's near-biblical floods.
The summer solstice has been and gone and the nights are drawing in. Sorry for that. But don't despair, we've still got another two months of summer left - so let's chat about sunlight, the significance of the UV Index and why the ozone layer plays a crucial role our relationship with the sun.
Naturally, summer does have its good points. People are happier, nicer and more sociable when it's a scorcher. They're also hornier, so everyone, including the fat and unattractive, have a greater chance of getting lucky.
The success and failure of invasions and military expeditions between Britain and Europe have always depended on the weather, from Julius Caesar onwards. But the role the weather and meteorologists played in the 1944 Normandy landings was critical.
The British Red Cross is warning beach-goers not to trust the old myth that fresh urine is the best treatment for jellyfish stings, as experts confirmed an impending influx of barrel jellyfish over the next few months due to warmer weather.
Britain's warm, wet winter brought floods and misery to many living across southern England, with large parts of Somerset lying underwater for months. When in January rainfall was double the expected average over wide areas, many people made cautious links between such extreme weather and global climate change.
The Met Office now has a team of space weather advisors, monitoring and forecasting potential disruption to the UK due to extra terrestrial events. By this, I mean the possible disruption to the technologies and infrastructure we all now heavily depend upon, including communications systems, power networks, satellite services like GPS, and the aviation industry.
Sometimes you can go on, feeling a certain way for the longest time, and then in an instant, everything changes. Something shifts within us. And suddenly, we can't even remember the way we used to feel. We only know how we feel now.
Although uncommon, Summer-Onset SAD does affect some people, with symptoms opposite to those in the winter; sufferers can experience weight loss, insomnia, loss of appetite, and agitation at this time of year. Summer-Onset SAD is not as widely recognised as the winter form of the syndrome, but it is something that does exist, and people should be aware of it.
Increasing evidence and scientific analysis is showing why these events are associated with human induced climate change. The related impacts are becoming more widespread and complex, affecting society from health issues to agriculture, from transportation to economics, and becoming more severe, long-lasting and costly with increasing frequency.
With a lot of our rail infrastructure and most of Somerset under water, not to mention water levels continuing to rise across Britain it is fair to say we are in the midst of a national crisis. He might not be in the top ten list of people I love in retail, but when former Tesco CEO Terry Leahy spoke about the occasional difficulties brands have - from local service problems to major outage and inconvenience - his catchphrase was "never waste a good crisis". It stuck with me and comes to mind now; not least because I love a paradox. The idea of a major problem being an opportunity is a tough one for executives to grasp whilst it's all happening.
As a weather presenter, I get to examine the latest Met Office charts so I know exactly when I'm going to need an umbrella. But which one? Over the years I've tried them all. I've tried big and small, traditional and high-tech. I've been wooed with lightweight materials, sturdy frames, hard-to-ignore colours and all sorts of other clever new gizmos.
Back in the world of politics Ed Miliband has said that 'Britain is sleepwalking to a climate crisis', and while the polar vortex is gripping the States in its icy fingers Senator John Kerry has called climate change a 'weapon of mass destruction' and is due to make a speech that will apparently convince all climate deniers of the truth of the C-word.
While we can be grateful that we live in a country where the state can mostly respond effectively to environmental disasters, and local communities are remarkably resourceful and resilient, I can't help wondering whether some real needs are being missed... are we are missing a trick as a country if we can't find a way to capitalise on the huge appetite for voluntary action?
The great majority of scientists agree; so do most senior politicians. Now voters are tending to think the same way: the floods are probably the result of climate change.