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Annual climate summary - 2021

The annual mean land surface air temperature averaged over India during 2021 was +0.44 C above the long-term average (1981-2010 period). The year 2021 was the fifth warmest year on record since nationwide records commenced in 1901. However, this is lower than the highest warming observed over India during 2016 (anomaly of +0.71 C).The winter (January to February) and post-monsoon (October to December) seasons with all India mean temperature anomalies of +0.78 C and +0.42 C respectively mainly contributed to this warming. The all India mean temperatures during the other two seasons; pre-monsoon (March to May) and monsoon (June to September) seasons, were also above normal with anomalies of +0.35 C and +0.34 C respectively. The 2021 annual rainfall over the country as a whole was 105% of its Long Period Average (LPA) value for the period 1961-2010. The monsoon season rainfall over the country as a whole was 99% of its LPA. The seasonal rainfall during the Northeast monsoon season (October – December) over the NE Monsoon core region of the south peninsula was 171% of its LPA. The NE Monsoon rainfall (579.1 mm) received over core region was highest since 1901.

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