Recently, the Earth had one of its warmest summers on record

According to NASA and NOAA, summer 2022 will feature historic heat waves, widespread drought, and torrential rains (NOAA). June through August tied 2020 for the Warmest Summers worldwide since 1880. Northern Hemisphere summer tied 2019 for most generous ever.

The Northern Hemisphere had its second-warmest summer on record, according to NOAA.

How each data set treats polar temperatures explains the difference. NASA’s data set has more Arctic and Antarctic inputs, a region warming faster than others.

Both data sets show this summer was abnormally warm, and the world has warmed dramatically since 1980. Since 1980, summers have warmed 0.47°F (0.26°C) per decade.

According to climate scientist Gavin Schmidt, August was the warmest in North America.

NASA and NOAA agree that 2022 will be among the ten warmest. 2022 will likely be the eighth year in a row more generous than the late 19th century.

June-July highlights

The summer was hot from the start. June, July, and August were the sixth warmest on record. June 2022 tied for the most scalding June on record, July for third, and August ranked second globally.

All five of the warmest June-August periods since 2015 show that global warming is accelerating.

June brought extreme heat, broken monthly records, and global weather disasters. Heavy rain and melted snowpack caused historic flooding and evacuations near Yellowstone National Park.

Extreme rain and drought this summer.

Japan experienced its worst June heat wave since 1875. Record rainfall caused flooding and evacuations in southern China. Troms, Norway, set a new temperature record for the month.

Record heat waves in Europe marked July. London’s 104-degree temperature set a national record. France, Germany, Spain, and Ireland set monthly records. The heat wave caused widespread fires and the worst glacier melt in the Alps, triggering a fatal avalanche in Italy.

Half of Europe was under drought warnings in August, the worst in 500 years. August brought intense heat to the U.S., especially the West.

Warmest Summers

August was above-average globally. The Northern Hemisphere’s warmest August was tied with 2020.
China’s hottest August and summer ever. This summer’s heat wave and drought in China shrank Poyang Lake by more than two-thirds.

The heat was global. New Zealand had its second warmest August on record, while Belgium had its warmest since 1833.

Warmer-than-average temperatures in Brazil fueled the Amazon wildfires. August had the most fires since 2010 (33,000).

Due to the heat, August had the fifth-lowest sea ice extent on record.

Arctic and Antarctic sea ice in August (left) (right).

Warmest Summers

Antarctica’s sea ice extent fell 4.2% below average in August. Antarctica’s monthly record has fallen for three straight months. In August 2022, Arctic sea ice was 16.2% below the 1981-2010 average, the 13th-smallest on record.

A wetter-than-normal monsoon season brought Pakistan intense rainfall. In August, floods in southern Pakistan killed nearly 1,500 people. Precipitation totals varied globally—wetter-than-normal weather in Pakistan, the southwest U.S., northern Japan, and western India.

Warmest Summers

The western U.S., western Europe, and Southeast Asia saw drier-than-normal weather. These dry conditions hindered crop growth, hampered hydropower generation, and fueled wildfires.

Summer fits into a warmer overall year. Year-to-date, the world has seen above-average temperatures. 2022 is the sixth warmest year from January to August, with a global average temperature of 1.55 degrees above the 20th-century average.

2016 is the most genial year on record, but 2022 has a 0.1% chance of surpassing it.

All ten warmest years have occurred since 2010. 2022 could join the top 10 if the trend continues.

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