In 2024, the city’ s annual average temperature was 19.4 deg;C, 1.0 deg;C higher than the long-term average and 0.1 deg;C higher than 2022, ranking as the second highest in historical records and climatically assessed as significantly elevated. Annual average temperatures ranged from 19.0 deg;C (Hengshan, Hengdong) to 19.8 deg;C (Changning City), reflecting a pattern of higher temperatures in the south compared to the north. Compared to the long-term average, temperatures were 0.7 deg;C higher (Hengshan, Hengdong, Hengyang urban area) to 1.4 deg;C higher (Changning). At Nanyue Mountain Station, the average temperature was 13.2 deg;C, 1.2 deg;C higher than the long-term average.

    The annual extreme minimum temperatures across counties (cities, districts) ranged from -4 deg;C (Hengshan) to -1.4 deg;C (Changning City), while Nanyue Mountain recorded an extreme minimum of -12.2 deg;C. The annual extreme maximum temperatures in counties (cities, districts) varied from 38.2 deg;C (Hengshan) to 39.0 deg;C (Leiyang), with Nanyue Mountain’s extreme maximum temperature reaching 28.9 deg;C.

    In 2024, the city’ s annual average temperature was 19.4°C, 1.0°C higher than the long-term average, ranking as the second highest in historical records. Temperatures were normal in winter, spring, and summer, while autumn saw above-average warmth. The annual average number of high - temperature days was 52.1, 13.0 more than the long-term average. The city's annual average precipitation was 1186.17 mm, 12.7% less than the long-term average. Winter precipitation was scarce, while other seasons were normal. Despite reduced precipitation, rainfall distribution was relatively even, resulting in mild drought conditions. The annual average number of rainy days was 136.9, 20.5 days fewer than the long-term average. The annual average sunshine duration was 1518.9 hours, 83.8 hours more than the long-term average. Winter saw significantly more sunshine, while other seasons normal.

In 2023, the city’s annual average sunshine duration was 1,518.9 hours, 83.8 hours more than the long-term average but 151.3 hours fewer than the previous year. Across counties (cities, districts), sunshine hours ranged from 1,426.8 hours (Hengyang urban area) to 1,658.4 hours (Hengshan), with anomalies ranging from -56.6 hours (Hengyang urban area) to +238.2 hours (Hengshan). Nanyue Mountain recorded 1,344.2 hours of sunshine, 108.9 hours below its long-term average.

In 2023, the city’s annual average precipitation was 1,186.17 mm, 12.7% below the long-term average but 15% higher than the previous year. Precipitation across counties (cities, districts) ranged from 1,014.2 mm (Hengyang urban area) to 1,311.3 mm (Leiyang City). Compared to the long-term averages, precipitation anomalies ranged from -305.6 mm (Hengyang urban area) to -66.8 mm (Qidong), with percentage anomalies of -23.2% (Hengyang urban area) to -5.3% (Qidong), reflecting a pattern of higher precipitation in the central-north and lower in the south. Nanyue Mountain recorded 1,678.9 mm of precipitation, 345.1 mm (17.1%) below its long-term average.

The city’s annual average number of rainy days was 136.9, 20.5 days fewer than the long-term average but 1.1 days more than 2022. Rainy days in each county (city, district) ranged from 128 (Hengnan) to 150 (Changning), with deviation values of - 32.8 (Hengnan) to - 15.4 (Changning) compared to the same period. Nanyue Mountain had 194 rainy days, 3.9 above its long-term average.