2025 Spring Package

Climate Central's analysis of 241 U.S. cities shows that 97% experienced an increase in average spring temperatures between 1970 and 2024, with an average rise of 2.4°F. The Southwest saw the most significant warming, and 80% of analyzed locations now experience at least one additional week of warmer-than-normal spring days. These trends are linked to global warming and contribute to increased wildfire risk, prolonged allergy seasons, and stressed water supplies in the western U.S.

• Between 1970 and 2024, average spring temperatures increased in 234 out of 241 analyzed U.S. cities (97%), with an average increase of 2.4°F. Seventy-one of these cities saw warming of 3°F or more.
• The most significant spring warming occurred in the southern U.S., particularly the Southwest, where temperatures rose by an average of 3.4°F. The highest individual warming was recorded in Reno, Nevada (6.8°F) and El Paso, Texas (6.4°F).
• The frequency of unusually warm spring days has increased in 98% of the analyzed locations. Approximately 80% of these cities now experience at least seven more warmer-than-normal spring days than they did in the early 1970s, with the highest increase occurring in the Southwest (averaging 19 additional days).
• Spring warming is linked to several environmental and health risks, including the prolongation of seasonal allergies, increased disease-carrying pest populations, and the shifting of plant hardiness zones northward.
• Warming springs contribute to higher wildfire risks and water scarcity in the western U.S. Spring is identified as the fastest-growing fire weather season from 1973-2023 in nearly every major U.S. region, and earlier snowmelt creates water deficits affecting agriculture, drinking water, and hydropower.

APA

Climate Central (2025). 2025 Spring Package. https://www.climatecentral.org/climate-matters/2025-spring-package

Chicago

Climate Central. 2025 Spring Package. 2025. https://www.climatecentral.org/climate-matters/2025-spring-package.

Wikipedia

{{cite report |author=Climate Central |title=2025 Spring Package |date=26 February 2025 |url=https://www.climatecentral.org/climate-matters/2025-spring-package |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{climatecentral20252025, author = {{Climate Central}}, title = {{2025 Spring Package}}, institution = {Climate Central}, year = {2025}, month = feb, url = {https://www.climatecentral.org/climate-matters/2025-spring-package}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }