Where I live, the climate fluctuates constantly, but meteorologists blame it on the jet stream, which is predominantly westerly air currents encircling the globe, and in the Springtime, the polar jet stream starts to journey north, following the sun, then this allows the warmer air to move up into the northern regions of the country, and but the jet stream is fickle.
It can allow summer-like uneven temperatures in December & March, only to bring frigid & snow in March, then what this means, of course, is that northerners are constantly increasing their temperature controls to accommodate the changes… And beware heading out to toil in the afternoon without checking the weather station first! The calendar may indicate that it should be warm outside, but the weather channel may predict snow, and people are slowly updating their temperature controls to electronic ones, which adjust the heating system settings automatically, depending on how they are programmed, then smart temperature controls are even more advanced in customization of the homeowners’ preferences.
But when the external temperature gets above sixty five degrees, one may be tricked into thinking that the warm weather is here to stay, periodically turning the heating system off & opening the windows. As the month of May approaches, people often switch their Heating as well as Air Conditioning system from the heating system to the cooling system. And no matter how more than 2 Springtimes you’ve lived through, you can still be fooled by more than 2 warm nights in a row. But then one day, reality hits (again) & the jet stream moves south, delivering frigid weather. The foolhardy make the adjustment to the temperature control again, closing the windows & putting winter season clothes back on. There’s no use complaining about it – that’s just the way it is.