The entire world's ecology is based around appropriate seasonal temperatures. It hit 40 C (104 F) in England last summer, a temp which was considered theoretically impossible. Northern CA just got hit with so much rain 20 people died. Forty-five people died in the surprise Buffalo blizzard last month. The Great Salt Lake is at 63% normal surface area, and 20 million migratory birds rely on it for breeding and eating.

Early spring-like temps--instead of Winter temps--are convenient for you softies, but these horrifically abnormal temps are going to disrupt the lives of insects (and the birds that feed on them), plants budding, hibernation cycles, etc.