Spring is a transitional season. It is generally a time when the chill of winter fades away and warmer conditions gradually return. But, as our climate changes, the season is heating up.

According to Climate Central, a non-profit news organization, spring temperatures across the contigous US have increased an average of 2°F over the past fifty years. The western part of the country has seen the largest seasonal upswing. Since 1970, Reno, NV has warmed 7.2°F and El Paso, TX has seen a rise of more than 5°F.

These warmer temperatures may feel like a boon for some, but they also bring a number of negative impacts. Less frost-free days means the allergy season is extended and disease-carrying pests like mosquitos and ticks are able to thrive longer.

Wildlife is also feeling the effects of a warming spring. The phenology, or timing, of important seasonal events like hibernation, migration, and pollination are being skewed from their once well-synced patterns.

Looking ahead, as greenhouse gas emissions continue to increase, so too will the temperature and its accompanying impacts.

Credit: Climate Central