Why Delhi’s winter chill remains missing? Experts weigh in on delay

New Delhi: As November progresses, Delhi’s winter chill remains conspicuously absent. The city continues to experience average daytime temperatures of around 28°C, well above the seasonal norm. Despite Diwali celebrations and predictions of a harsh winter following a scorching summer, residents are left wondering when the cool, crisp air will finally arrive.

Record-Breaking Heat Lingers

October 2024 was the hottest in 74 years, and the warming trend shows no sign of abating. According to the Indian Meteorological Department (IMD), November’s temperatures are expected to remain 4-6°C higher than average. Daytime highs are unlikely to drop below 30°C until the latter half of the month, prolonging Delhi's unseasonably warm spell.

Impact of Missing Western Disturbances

A key factor behind the delayed winter is the absence of Western Disturbances—weather systems from the Mediterranean that typically bring rain and cooler air to North India. Since the monsoon’s retreat in October, Delhi has received minimal rainfall, leaving the region approximately 80% drier than usual. This lack of precipitation has intensified the warmer conditions, keeping Delhiites in an extended autumn phase.

Global Climate Phenomena at Play

Adding to the unusual weather, global factors like El Nino and La Nina are impacting regional patterns. El Nino, which generally triggers warmer conditions, was expected to ease this winter but has persisted in a neutral state. Meanwhile, La Nina, associated with cooler weather, may develop between late November and December. However, its exact timing and strength remain uncertain, leaving experts cautious in their predictions.

The IMD anticipates a weak Western Disturbance between November 16 and 21, but its impact will likely be restricted to the upper Himalayan region. For Delhi, this means no immediate relief from the warm temperatures or the dry spell.

Adapting to Changing Seasons

As Delhi waits for winter’s chill to set in, the prolonged warmth highlights the shifting rhythms of the city’s seasons. Residents may need to prepare for warmer Novembers in the future as global weather patterns continue to evolve.