The country experienced the rainiest day of the season on July 26. The country received 14.1 mm of rainfall, against the normal average of 9.7 mm.
The country therefore, witnessed 45% excess rainfall. The biggest contribution to this figure came from Northwest and Central India.
On Sunday, Northwest India received 19.6 mm of rainfall against the normal average of 8 mm. Thus, it received 145% excess rainfall. Similarly, Central India received 18.5 mm of rainfall against the normal average of 10.9 mm, which is 70% excess.
Click here to see the cumulative rainfall data across the country
Weather systems bringing down rainfall deficiency
The well-marked low pressure area over Southwest Rajasthan, which could intensify into a depression very soon, has helped to mitigate the rainfall deficiency in the parched state of Gujarat. The subdivision of Gujarat is now inching towards normal. At present rainfall deficiency here stands at 20%. The system will continue to bring heavy showers in Rajasthan, East Madhya Pradesh and Gujarat.
The depression lying over North Bay of Bengal and adjoining Coastal Odisha is also helping Southwest Monsoon to inch towards normal. Heavy to very heavy showers are likely in North Coastal Odisha and Gangetic West Bengal during next 48 hours.
Both the systems are likely to sustain their strength and not weaken in next couple of days. In rest of July, the daily actual rainfall figure is likely to be more than the normal average.
The country has received normal or near normal rainfall every day, for the last 11 days. Nevertheless, the country seems to be covering the rainfall deficiency at a very slow pace. Courtesy, very high daily average rainfall in the last week of July. As of now, the country has received 398.2 mm of rainfall this season against the normal average of 415.3 mm.
Daily Average Rainfall
Southwest Monsoon is spread over four months from June to September. During this period the daily average rainfall figure varies largely since the beginning of June. The average rainfall in the first week of June remains around 3 mm and reduces gradually by the middle of the month. Most of the contribution to the daily rainfall figure comes from the two pockets of West Coast and Northeast India.
As Southwest Monsoon sets in and covers most parts of the country by end of June, the daily average rainfall figure rises to 8 mm of rain.
The daily normal rainfall figure starts mounting and goes up to 9 mm by middle of July and the figure ranges between 9.5 to 10 mm in the last week of the month. In any case, July is the rainiest month with countrywide average rainfall of 289 mm.
By the second half of August, rain starts decreasing across the country. During the withdrawal phase of Southwest Monsoon, after September 10, on an average the country receives about 5 mm of rainfall.
Image credit - mohamadmoazami.blogfa.com
