I agree that summer can decrease productivity when people think of leisure and feel lower energy and attention, but it is not always true that bad weather boosts productivity when it may result in sleepiness. Konnikova provides a study in which students were less productive after seeing “pleasant
outdoor photographs” (para. 3). Another research suggests that hot weathers decrease attention and energy (Konnikova 5). I myself can feel less inclined to study if I know I would rather go out, and when it is too warm, I feel lazier too. However, bad weather is not that good for my productivity as well. When it is cold, I would rather sleep than work. Perhaps, like heat, there should be the right kind of coldness that is good enough for comfort but not too comfortable to feel lazier. Too much heat and coldness are both possible antecedents to being lazy.
Summer can make us lazy but so can cold weather. I like how Konnikova supported her arguments with studies but my anecdotal evidence disagrees with some of her points. When it is cold enough to feel sleepy, I am less, not more, productive. Different temperatures can affect my feelings toward work; too much coldness or hotness can be bad for my productivity.