2020 Summer Package

The document reports that 94% of 242 analyzed U.S. cities saw an increase in average summer temperatures since 1970, with summer nights warming faster than days. It highlights that 74% of cities experienced at least one additional week of above-normal temperatures, with the most significant increases concentrated in the Southeast and Texas.

• The vast majority of analyzed U.S. cities have experienced warming summer temperatures since 1970, with 94% (228 of 242) recording an increase and 42% (101 cities) warming by more than 2℉.
• There has been a significant increase in the number of days with above-normal summer temperatures; 93% of cities recorded an increase, and 74% (179 cities) saw an extra week or more of such days.
• The most extreme increases in days above normal—specifically those recording a month or more of additional days—are concentrated in Texas and the Southeast United States.
• Summer night temperatures are increasing more rapidly than daytime temperatures, with 53% (128 of 242) of cities recording a rise in low temperatures of more than 2℉ since 1970.

APA

Climate Central (2020). 2020 Summer Package. https://www.climatecentral.org/climate-matters/2020-summer-package

Chicago

Climate Central. 2020 Summer Package. 2020. https://www.climatecentral.org/climate-matters/2020-summer-package.

Wikipedia

{{cite report |author=Climate Central |title=2020 Summer Package |date=27 May 2020 |url=https://www.climatecentral.org/climate-matters/2020-summer-package |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{climatecentral20202020, author = {{Climate Central}}, title = {{2020 Summer Package}}, institution = {Climate Central}, year = {2020}, month = may, url = {https://www.climatecentral.org/climate-matters/2020-summer-package}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }