APIt's not all in your head; 2015 was insanely hot.
In fact, according to a new statement by the National Oceanic and Atmospheric Administration (NOAA), it was the hottest year since 1880 — the year we started keeping records of global temperatures.
This new record shatters the previous hottest year record holder — 2014. Meaning that, yes, temperatures keep rising. And that little thing called climate change is to blame.
Don't believe me?
Take a look at this chart NOAA assembled back in September, 2015, which compared the monthly temperatures in 2015 to the rest of the hottest years on record.
When plotted against the average temperatures from the 20th century, it's easy to see that 2015 was clearly on track to win the hottest year award.
By the end of the year, it kept that lead. According to NOAA, all of the globe's surfaces — our oceans, mountains, deserts, and plains — were about 1.62 Fahrenheit warmer than the average global temperature for the entire 20th century.
This smashed the 2014 record by a quarter of a degree Fahrenheit, which may not sound like a lot. But even just a few degrees of warming could have devastating consequences on the planet.
Historically, changes like this have taken place over millennia, not decades. As it is now, Earth and the living beings on it will be hard pressed to adapt to these temperature changes.
The animation below helps put these details into perspective. Quite a few regions across the globe experienced record-breaking temperatures in 2015, while most of the planet saw higher-than-normal temperatures.
As super-hot summers become the new normal, scientists are trying to parse how that heat affects us.
New research published in July 2015 showed elderly Americans are more likely to die if they live in regions with higher-than-average temperatures; in fact, for every 1.8-degree-Fahrenheit rise in average summer temperature, the annual death rate was 1% higher than normal.
The ill effects of last summer's steamy weather weren't limited to humans.
A study published in May 2015 found that climate change could cause 1 out of every 6 animal species to go extinct.
Other research suggests hotter summers could bring an end of some of your favorite wines.
Rising sea temperatures and extreme weather patterns are even driving up the costs of lobster, among other seafood delicacies.
These measurements fall on the heels of the Paris Climate Talks back in December, 2015, in which 195 nations vowed to try and cut greenhouse gas emissions — the biggest contributors to climate change.
But those measures could take decades to merely begin to even out global temperatures. So until then, down a few cold brews and stay cool out there.