The southwest monsoon on Sunday covered the entire country six days before the normal date, as it advanced in the remaining parts of Rajasthan, Punjab and Haryana. Of the 717 districts, 379 have received deficient rainfall so far.
As many as 16 states and Union territories received deficient rainfall in June, with Bihar and Kerala reporting large deficits at 69 per cent and 60 per cent below normal, respectively. India received 136.7 mm rainfall as against the normal of 157.5 mm till June 29.
Initially, it was rains brought by cyclone Biparjoy over Gujarat and Rajasthan that helped in improving the situation a bit, and in the last one week, rains over most of northwest India has resulted in bridging the deficit.
The India Meteorological Department (IMD) said on Sunday the monsoon covered the entire country on Sunday, against the normal date of July 8. The long period average (LPA) of rainfall over the country during July based on the data of 1971-2020 is about 280.4 mm.
The IMD data showed some other states such as Uttar Pradesh, Maharashtra, Karnataka, Jharkhand, Andhra Pradesh and Telangana also received less rainfall than what is normal for June, the first month of the southwest monsoon season.
The south peninsula received 45 per cent less rainfall; Central India received 12 percent less rainfall and east and northeast India’s rain deficient is 20 percent in June.
“The monthly rainfall averaged over the country as a whole during July 2023 is most likely to be normal (94 to 106 per cent of LPA) and most probably within the positive side of the normal,” IMD Director General Mrutyunjay Mohapatra had said on Friday.
The phenomenon of warming of the equatorial Pacific Ocean, called the El Nino conditions, are expected to develop in July. El Nino is known to suppress monsoon rainfall.
Mohapatra said during most of the recent El Nino years, June rainfall has been within the normal range.
“In 16 of the 25 years when June rainfall was below normal, July rainfall has been reported normal,” he had said.
He said 377 weather stations across the country reported heavy rainfall events - 115.6 mm-204.5 mm per day - in June, while 62 stations reported extremely heavy rains, amounting to more than 204.5 mm.
Mohapatra had said the March-to-June summer season saw heatwave conditions across 281 meteorological sub-division days (MSD), the third highest after 578 MSDs in 2010 and 455 MSDs in 2022. If one meteorological sub-division reports heat wave conditions, it is considered as one MSD.
The weather office said during July, normal to above normal maximum temperatures were likely over most parts of the country except some areas of northwest and peninsular India.
It said normal to above normal minimum temperatures were likely over most parts of the country except some areas of northwest India.