Weather

Summer 2019: Hot across Northern Hemisphere, but southern Wisconsin stayed cool

Hot temperatures were hard to escape during the summer of 2019, which was the warmest on record for the Northern Hemisphere. 

From June through August, global surface temperatures were more than 2 degrees Fahrenheit above the 20th century average.

Summer 2019 broke temperature records without the presence of a strong El Niño event in the Pacific Ocean, usually a driving force behind a boost in thermometer readings.

Paris set an all-time hottest temperature reading in July, while Anchorage, Alaska, saw an unprecedented heat wave where temperatures hit 90 degrees for the first time in history.

According to NOAA, the five hottest meteorological summers in the Northern Hemisphere have all occurred in the past five years.

Across southern Wisconsin, however, some might argue that summer never fully arrived.

We've been, in certain ways, fortunate here in the Midwest and in Madison in particular, that it's been reasonably comfortable," Wisconsin assistant state climatologist Ed Hopkins said.

Madison typically averages about 15 90-degree days a year. We've had only six days of 90-degree heat in all of 2019.

Hopkins points to the position of the jet stream as why we've been cool for the summer.

"We've been on the cooler side. I mean, it's been warm at times, but it's been a lot warmer if you go down into Illinois or into the High Plains."

The summer season is definitely holding on to southern Wisconsin. High temperatures are expected to remain in the 80s with the humidity sticking around into this weekend. 


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