India Meteorological Department report

India Meteorological Department’s Monthly Climate Summary for April 2026 records faster rise in minimum temperatures than maximum temperatures across India. The pattern is for understanding night-time warming and heat stress.

Night-Time Warming in India:

Dimension	Key Details
Report	The weather pattern is recorded in the Monthly Climate Summary reports published by the India Meteorological Department for April 2026.
Temperature Pattern	Minimum temperatures or night-time temperatures are rising faster than maximum temperatures or daytime temperatures.
Daytime Temperature	Countrywide daytime maximum temperatures are around 0.11°C above the usual average.
Night-Time Temperature	Countrywide night temperatures are 0.5°C above normal.
Western and Central India	Large parts of western India and central India record daytime maximum temperatures close to or below normal levels.
Punjab	Punjab records daytime temperatures around 1°C below normal, while night temperatures are 2.4°C hotter than the state average.
Delhi	Delhi records daytime temperatures below normal, while night temperatures are 2.2°C hotter than usual.
Highest Night Deviation	Chaparmukh in Assam and Phulbani in Odisha record the highest rise in night temperatures among 422 weather stations.
Heat Stress Impact	Warmer nights reduce recovery time for the human body and environment after daytime heat.
Normal Temperature	Normal temperature refers to a long-term average baseline used to determine whether a day is hotter or cooler.
Baseline Period	The India Meteorological Department and World Meteorological Organization use the 1991–2020 average temperature records as the current 30-year baseline.
Below Normal Meaning	Below normal temperature means the reported temperature is cooler than the specific 30-year average for that month, even if absolute heat remains high.