The graph below shows how annual and seasonal average temperatures in India have changed since 1901.
The country’s meteorological department follows the international standard of four seasons with some local adjustments: winter (January and February), summer (March, April and May), Monsoon (rainy) season (June to September), and a post-monsoon period (October to December).
- Since 1901, the average surface temperature across the country has risen at an average rate of 0.13°C per decade. Average temperatures have risen more quickly since the mid 1990s (0.26 to 0.56°C per decade since 1995).
- 2016 was the warmest year on record with mean annual temperature 26.45 °C, 2017 was the second-warmest, and 2011–2020 was the warmest decade on record since thermometer-based observations began.