September, the penultimate month of Monsoon 2020 has rained rather well in the second half of the month to cross the normal limit. As on 25th September, the month has recorded 156.4mm rainfall against the normal figure of 149.5mm. All this has happened when the month was struggling with a deficiency of 30% in the first 10 days of the month. The central and eastern parts along with Western Ghats downpour recovered the month from early dampener to saturating rains.
It has been a wavy ride for the monsoon this season. The month of June was +18%, followed by 10% deficiency in July, thereby consuming the surplus and monsoon count starting from zero-zero. However, August turned out to be the rainiest in the last 4decades recoding excess of 27% and closing the month at 110% of LPA (Long Period Average). This was courtesy record 5 low-pressure areas in the Bay of Bengal during the month.
The monsoon rains touched a fresh low when September started on a disappointing note and registered cumulative monthly deficiency of 30% till 10 September. Formation of 2 back to back low-pressure areas reversed the trend to reduce this margin and finally achieving zero-zero on 23Sep. As of 25th, the month has taken a lead of 5%. With this, the monsoon tally has touched 109% of LPA for the 2nd consecutive day.
The remaining days of September will see a gradual decline in weather activity. Also, it will be limited to Northeast India and few parts of Maharashtra and Telangana. The curtains will be drawn with season-ending ‘Above Normal’ registering 108% of LPA.