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Has the climate in Changsha changed?

Changsha has warmed about 2.9°F since 1987.

About 0.7°F per decade, measured from Changsha's official daily weather records, 1987–2025. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Changsha's warming is broadly in line with other cities in China — neither unusually fast nor unusually slow.

What has actually changed

Each card compares the 1970s (the first ten years of the record) with recent years (the last ten) — the same span the headline and the chart use.

Freezing nights
1 fewer night
1970s
14 / yr
Recent
13 / yr
Milder winters — fewer frosts
Average temperature
+1.9°F
1970s
62.9°F
Recent
64.8°F
A steady upward drift
Hot days above 90°F
11 fewer days
1970s
58 / yr
Recent
47 / yr
Slightly fewer hot days
Rainy days
4 more days
1970s
144 / yr
Recent
148 / yr
Wetter on average

Changsha's temperature, year by year

Average temperature for each year from 1987 to 2025.

60°62°64°66°68°1987: 63.0°F1988: 62.4°F1989: 61.9°F1990: 63.2°F1991: 62.4°F1992: 63.0°F1993: 61.8°F1994: 63.2°F1995: 63.3°F1996: 62.4°F1997: 63.0°F1998: 64.6°F1999: 63.4°F2000: 63.0°F2001: 63.7°F2002: 64.1°F2003: 63.8°F2004: 64.9°F2005: 64.0°F2006: 65.5°F2007: 65.9°F2008: 65.1°F2009: 65.4°F2010: 64.8°F2011: 64.2°F2012: 63.7°F2013: 66.8°F2014: 65.7°F2015: 63.5°F2016: 63.6°F2017: 64.1°F2018: 64.1°F2019: 63.7°F2020: 63.7°F2021: 65.1°F2022: 64.9°F2023: 64.8°F2024: 65.8°F2025: 66.6°Flong-term trend198719902000201020202025
a warmer-than-average year a cooler-than-average year

Each bar is one year. Most recent years sit above the older ones. Some recent years still came in cool — warming is a slope, not a straight climb.

In day-to-day terms, that long-term shift shows up as about 5 fewer days above 90°F compared with the 1970s.

When in the year the change shows up

How much warmer each month is now than in the 1970s. Useful if you garden or care about a particular season — otherwise the headline above already has the answer.

-1.0°-0.5°0.0°+0.5°+1.0°+1.5°+2.0°+2.5°+3.0°January: +0.4°F+0.4JFebruary: +1.5°F+1.5FMarch: +2.7°F+2.7MApril: +1.6°F+1.6AMay: +1.0°F+1.0MJune: +1.3°F+1.3JJuly: +1.3°F+1.3JAugust: +0.4°F+0.4ASeptember: +0.8°F+0.8SOctober: +1.1°F+1.1ONovember: +1.1°F+1.1NDecember: -0.5°F-0.5D

March has warmed the most — about 2.7°F. The warming runs across the whole year, not just one season.

Methodology & sources

Temperature — 1991–2020 normals computed from 24 years of daily observations at Changsha, a weather station, about 11 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →