Core Viewpoint - The recent weather conditions have significantly impacted agricultural production across various regions in China, with varying temperature and precipitation patterns affecting crop growth and management strategies [1][7]. Weather Characteristics - In the past week, temperatures in most northern agricultural areas were close to or 1 to 2°C higher than the same period in previous years, with some regions experiencing increases of 2 to 4°C, and even over 4°C in parts of Heilongjiang and Inner Mongolia [2][4]. - Southern agricultural areas generally saw temperatures close to or 1 to 2°C lower than normal, with specific regions like southern Jiangnan and southern Guizhou experiencing drops of 2 to 4°C [2]. Precipitation Patterns - Significant rainfall was recorded in various regions, with amounts ranging from 10 to 50 mm in areas like southern Inner Mongolia and most of Sichuan, while parts of Yunnan and Hainan experienced 100 to 250 mm, which is 3 to 4 times higher than normal [4]. - Other agricultural areas received less than 10 mm of rainfall or no precipitation at all [4]. Sunshine Duration - Most agricultural areas experienced sunshine hours close to normal, but regions like northeastern Jiangnan and parts of Heilongjiang saw increases of 30% to 80%, while areas in southern Xinjiang and southwestern regions experienced decreases of 30% to 80% [5]. Future Weather Trends - The next 10 days forecast suitable light and temperature conditions for crops like corn and soybeans in the northeast, while heavy rainfall is expected in northeastern Heilongjiang, potentially leading to short-term flooding in dry farmland [6]. - High temperatures of 35 to 38°C are anticipated in parts of North China and Huanghuai from June 5 to 7, which may disrupt the maturation of wheat and exacerbate soil moisture loss [6]. - From June 6 to 9, significant rainfall is expected in regions including Jianghan and Jiangnan, which could benefit agricultural water reserves but also pose risks of flooding and adverse effects on rice cultivation [6]. Agricultural Production Recommendations - In the northeast, farmers should manage fields based on conditions, ensuring timely seedling checks and water management in rice paddies [8]. - In northern winter wheat areas, irrigation should be applied where moisture levels are low to aid wheat maturation, and harvesting should be expedited in mature areas [8]. - Southern regions should focus on maintaining agricultural water infrastructure and managing low-lying fields to mitigate flooding risks, while also monitoring for pests and diseases [8].

Weather Characteristics and Agricultural Impact Analysis - This week (May 25-31, 2025), northern agricultural regions experienced temperatures close to or 1-2°C higher than the historical average, with some areas in the northeast and northwest exceeding 4°C above average [2] - Southern agricultural regions saw temperatures near or 1-2°C below the historical average, with certain areas in Jiangnan, South China, Yunnan, and southern Guizhou being 2-4°C lower [2] - Precipitation in northern regions ranged from 10-50 mm, while parts of Jiangnan, North China, and Yunnan experienced 50-100 mm, and some areas received 100-250 mm, significantly above the historical average [2] - Sunshine hours were generally close to historical averages, with some areas in northeastern Jiangnan and eastern Heilongjiang seeing increases of 30-80% [2][7] Agricultural Production Impact Analysis - In the northeast, favorable light and heat conditions benefited the growth of dryland crops and rice transplanting [8] - The northern winter wheat region had predominantly sunny weather, facilitating the harvesting of mature winter wheat, although rain from May 30 to June 1 may temporarily hinder harvesting in some areas [8] - In the southern regions, heavy rainfall led to flooding in low-lying fields, affecting crops like lychee and mango, while persistent rain hindered crop growth and pest monitoring [9] Future Weather Impact Forecast and Recommendations - The next ten days are expected to have suitable conditions for the growth of corn and soybeans in the northeast, while heavy rainfall in parts of Heilongjiang may cause temporary flooding [10] - Northern regions will experience mostly sunny weather, which is beneficial for harvesting winter wheat and planting summer corn, but high temperatures (35-38°C) from June 5-7 may disrupt wheat maturation [10] - Recommendations include managing dryland crops and water levels in rice fields, ensuring timely harvesting and planting, and maintaining agricultural water infrastructure in southern regions to mitigate flooding risks [11]