Monthly Attribution Overview - August 2024

The report finds that August 2024 temperatures were elevated across much of the U.S., particularly in the South and Southwest, with Texas experiencing the highest anomalies. Using the Climate Shift Index (CSI), the analysis shows that the Southwest and South had the highest number of days where temperatures were at least three times more likely due to climate change. San Juan, Puerto Rico, recorded its hottest August on record, and Amarillo, Texas, was the most unusually hot city, 6.27°F above normal.

• August 2024 temperature anomalies in the U.S. were elevated in the South and Southwest, while much of the East Coast from South Carolina to Maine was unusually cool. Texas experienced particularly high temperatures, with a state average 3.11°F higher than normal and four cities recording anomalies exceeding 5°F.
• The Climate Shift Index (CSI) indicates that the South and Southwest experienced the highest frequency of days where temperatures were at least three times more likely because of climate change. Cities in the Southwest averaged at least 15 such days, while those in the South averaged 9.5.
• San Juan, Puerto Rico, experienced its hottest August on record, with 29 days reaching CSI 5, meaning temperatures on those days were at least five times more likely to occur due to climate change.
• Amarillo, Texas, was the most unusually hot city in August 2024, recording a temperature 6.27°F above normal. Long-term trends show that Augusts in Amarillo have warmed by 4.4°F on average since 1970.
• Reno, Nevada, is the fastest-warming ACIS station for August, having warmed 11.2°F on average since 1970, despite having an unusually cool August in 2024 with a daily temperature anomaly of -0.62°F.

APA

Climate Central (2024). Monthly Attribution Overview - August 2024. https://www.climatecentral.org/report/monthly-attribution-overview-august-2024

Chicago

Climate Central. Monthly Attribution Overview - August 2024. 2024. https://www.climatecentral.org/report/monthly-attribution-overview-august-2024.

Wikipedia

{{cite report |author=Climate Central |title=Monthly Attribution Overview - August 2024 |date=3 September 2024 |url=https://www.climatecentral.org/report/monthly-attribution-overview-august-2024 |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{climatecentral2024monthly, author = {{Climate Central}}, title = {{Monthly Attribution Overview - August 2024}}, institution = {Climate Central}, year = {2024}, month = sep, url = {https://www.climatecentral.org/report/monthly-attribution-overview-august-2024}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }