Delhi Sees Wettest April in Over a Decade as Unseasonal Rains Bring Mixed Relief
In a surprising turn of events, intense and unexpected rainfall has drenched Delhi, marking the city's wettest April since 2010. This meteorological anomaly occurred even as maximum temperatures stubbornly remained above normal levels on Saturday, providing only a brief and limited respite from the oppressive heat that has gripped the capital.
Rainfall and Temperature Data Highlights
According to the India Meteorological Department (IMD), Delhi recorded 12.4 mm of rainfall over the past 24 hours, pushing the cumulative total for April to 28.2 mm. This figure is a staggering 147% above the normal rainfall of 16.3 mm for the month so far. Notably, this is the highest April rainfall since 2010, with the second-highest being 27.7 mm recorded in 2015.
On Saturday, the maximum temperature in Delhi was recorded at 39.5 degrees Celsius, which is three notches above the normal level. However, this was lower than Friday's season-high of 41 degrees Celsius. The Ridge area experienced the day's peak temperature at 41.3 degrees Celsius. In contrast, the minimum temperature dropped to 19.8 degrees Celsius, two notches below normal, compared to 24 degrees Celsius the previous day, reflecting the cooling effect of the rain.
IMD Forecast and Future Temperature Trends
The IMD has indicated that there is unlikely to be any significant change in maximum temperatures over the next three days. Maximum temperatures are expected to hover between 39 and 41 degrees Celsius on Sunday and 38 to 40 degrees Celsius on Monday. Following this period, a rise of 2-3 degrees Celsius is anticipated thereafter, signaling a return to hotter conditions.
"No large change in maximum temperatures is expected during the next three days, with a rise of 2-3°C thereafter," the department stated in its official update.
Impact on Air Quality and Enforcement Actions
The rainfall also brought a temporary improvement in air quality. The Air Quality Index (AQI) improved to 152, categorizing it as 'moderate', on Saturday, a significant drop from 263 ('poor') recorded a day earlier. According to the Early Warning System, air quality is likely to remain in the moderate category on April 19 and 20, but is expected to slip back to poor on April 21.
In related environmental news, the Commission for Air Quality Management (CAQM) reported findings from a 15-day drive conducted in March-April. The drive uncovered several violations, leading to proposed closures for nine units, sealing of diesel generator sets in 18 units, show-cause notices for 11 units, and environmental compensation for six units. Since April 2, a total of 46 enforcement actions have been taken to address air quality concerns.
This combination of unseasonal rainfall and persistent heat underscores the volatile weather patterns affecting Delhi, with implications for both daily life and environmental health.
