江苏发布2025年十大天气气候事件

Core Viewpoint - The Jiangsu Provincial Climate Center has reported significant climate anomalies for 2025, highlighting record-high average temperatures, reduced precipitation, and the prevalence of extreme weather events impacting agriculture, ecology, and public life [1][2]. Summary by Sections Temperature and Precipitation - The average annual temperature in Jiangsu reached 17.4°C in 2025, surpassing the previous record of 16.9°C set in 2024, marking a 1.7°C increase from the norm and establishing a new historical high since 1961 [1]. - The average annual precipitation was 1011.4 mm, which is 22.3% lower than in 2024 and 4.9% below the long-term average, with uneven distribution across the region [1]. Extreme Weather Events - The winter of 2024-2025 recorded only 20.5 mm of precipitation from December to February, representing just 17% of the normal winter amount, the lowest since 1961, leading to severe drought conditions [2]. - From December 2024 to April 2025, total precipitation was 66% below the historical average, with 43% of monitoring stations experiencing severe drought for over 40 days [2]. High Temperature Trends - The average number of high-temperature days in 2025 was 31, nearly double the normal of 11 days, tying for the third-highest on record, with a notable heatwave occurring from August 12 to 31 [3]. - The summer of 2025 was characterized by an extended duration, with the average start date of summer recorded on May 21 and the end on October 9, resulting in a summer length of 141 days, the longest since 1961 [3]. Typhoon Impact - Typhoon "Zhu Jie Cao" affected Jiangsu from July 30 to August 3, bringing significant rainfall of 150-350 mm in southern regions, while Typhoon "Hua Jia Sha" caused record rainfall in Baoying [4]. - The autumn of 2025 saw excessive rainfall, with average precipitation doubling the norm, adversely affecting autumn crop production [4]. Monsoon Characteristics - The 2025 plum rain season was atypical, starting on June 11 and ending on July 1, with rainfall intensity significantly lower than average, at 132.2 mm, nearly 50% less than normal [5]. - A notable cold snap occurred on March 2, with temperature drops exceeding 12°C in many areas, setting historical records for temperature declines [5]. Future Implications - The report aims to enhance public understanding of climate conditions and provide scientific references for disaster prevention, agricultural planning, and ecological protection, with ongoing efforts to improve climate monitoring and response capabilities [5].