Cold wave conditions continue in Delhi for 5th day as mercury plunges to 2.9°C
The cold wave conditions were expected to abate from Friday onwards as a feeble western disturbance was approaching and likely to raise the night-time temperature
Cold wave conditions continued for a fifth day, as northwesterly icy winds and dense fog plunged the mercury 4.5 degrees below normal at Safdarjung, Delhi’s representative weather observatory, to 2.9°C, compared to 3.8°C on Wednesday and 3°C on Tuesday, and the air quality remained “very poor”. Air and rail traffic was disrupted as the visibility at Safdarjung dipped to 100 metres and 500 metres at Palam.

Data from the flight tracking website Flightradar24 showed over 200 flights were delayed at the Delhi airport. The average delay time for departures was 49 minutes. Trains were also running late, the Northern Railways said.
The minimum temperature at Safdarjung on Thursday was the lowest since January 18, 2023, when the mercury settled at 2.6°C. The Palam weather observatory recorded a minimum temperature of 2.3°C on Thursday, five degrees below normal and the lowest for it in 20 years. On January 8, 2006, the mercury at Palam plummeted to 0.3°C.
The cold wave conditions were expected to abate from Friday onwards as a feeble western disturbance was approaching and likely to raise the night-time temperatures. The minimum temperature is forecast to rise to a range of 6-8°C on Friday. By Sunday, it is expected to be between 8 and 10°C.
A cold wave is declared when the minimum temperature is below 10°C, while its departure is also 4.5°C or more below normal. The minimum temperature of 4°C or lower is also classified as a cold wave.
The western disturbance expected to start impacting the Himalayan region from Thursday is likely to change the wind direction.
Private forecaster Skymet Weather vice president Mahesh Palawat said the minimum temperatures should rise in the absence of cold northwesterly winds for a few days. “A second, more active western disturbance is expected to bring rain across the plains on January 22 or 23,” he said.
A 24-hour average Air Quality Index (AQI) of 349 (very poor) was recorded at 9am on Thursday, compared to 353 (very poor) at 4pm on Wednesday. “Very poor” air quality was expected until at least January 23.
ABOUT THE AUTHORJasjeev GandhiokJasjeev Gandhiok is an Assistant Editor with Hindustan Times, where he covers environment, climate change, the clean energy transition and wildlife at the National Bureau. Gandhiok has over a decade of experience in journalism and is based in Delhi. He has reported extensively on Delhi and the National Capital Region (NCR). This includes the region's air pollution woes, a polluted Yamuna and on urban wildlife still thriving in the region. He joined HT in October 2021. Prior to that, he had five-year stint at The Times of India in Delhi, where he also covered Delhi, with a focus on environment and wildlife. Gandhiok has covered some recent events around the Capital too, ranging from the farmers' protests, the northeast Delhi riots and the CAA-NRC protests, reporting from the ground on all of these. He also travels across the country to report on how environment and climate change impact everyday life, while also writing on endangered species. His reports in 2019 on toxic leachate from Delhi's landfills led to the National Green Tribunal (NGT) taking suo motu cognisance and ultimately asking the state government to start bio-mining to flatten and remove all three landfills in the capital. He also closely tracks the implementation of government policies on climate, renewable energy and environmental protection. His focus remains on impactful, public-interest journalism which explains how environmental decisions affect people's everyday lives.Read More

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