The India Meteorological Department designated four of these as cyclonic storms, which have maximum sustained winds of at least 65 km/h (40 mph) averaged over three minutes.

A depression in September killed 59 people after dropping torrential rainfall over Bangladesh and adjacent West Bengal.

[3] Twin depressions formed during June on opposite sides of India, which helped intensify the monsoon over the country.

Early on May 5, the JTWC classified the system as Tropical Cyclone 01A about 370 km (230 mi) west-southwest of Kochi, India.

[2] Increased wind shear, cooler waters, and dry air rapidly weakened the convection, exposing the center and causing the storm to deteriorate quickly into a depression.

[5] While an active tropical cyclone, the storm dropped torrential rainfall to the Lakshadweep group offshore western India.

[1] This broke the record for the highest daily rainfall total related to a North Indian Ocean cyclone.

On May 19, the cyclone made landfall along northwestern Myanmar near Sittwe, with maximum sustained winds estimated at 165 km/h (105 mph) by the IMD.

[1][2][4] The storm rapidly weakened over land, although its remnants spread rainfall into northern Thailand and Yunnan province in China.

[4] Winds from the cyclone reached 157 km/h (98 mph) in Myanmar,[4] occurring in conjunction with heavy rainfall and a high storm surge.

[7][13] Although damage was heaviest in Myanmar, the cyclone's effects also spread into neighboring Bangladesh, where strong winds knocked over trees and capsized two ships.

[1] On June 11, and again on the following day, the JTWC issued a Tropical Cyclone Formation Alert (TCFA), although the system never strengthened beyond its initial stages.

[1] For about ten days in September, a monsoon depression persisted around the northern edge of the Bay of Bengal onto adjacent landmasses, initially associated with an upper-level low.

Located within a col, or weakness between ridges, the depression meandered over eastern India, weakening into a remnant low on September 15.

[15] In nearby Bangladesh, the depression produced additional flooding after a similar disaster occurred in July, temporarily isolating about 1 million people, and killing 19.

[17] Cyclone Onil quickly attained its peak intensity on October 2 with winds of 100 km/h (60 mph) and a barometric pressure of 990 mbar (hPa; 29.23 inHg).

However, dry air quickly entered the system, causing it to rapidly weaken to a depression just off the coast of Gujarat, India.

[19] The drainage system of Hyderabad sustained significant damage, leading to several protests and demonstrations by city residents.

[18] For several days in early October, the depression dropped rainfall across southeastern India, which was heaviest after it re-intensified over land.

In West Bengal, the floods killed 3,000 migratory birds and damaged ₹1.1 billion rupees (US$23.9 million) worth of crops; 51 people also died in the state.

[1] The third large flood event of the year,[23] the depression caused its most severe impact in northeastern India, where 218 people were killed,[1] including 112 in the city of Goalpara alone.

The precipitation led to a snowstorm in Tibet, reaching 60 mm (2.4 in) in one location; this marked the highest daily snowfall for the station in October, and caused a loss of crops and livestock.

[1] Moving northward, the system's convection continued to organize around the center, and the JTWC classified it as Tropical Cyclone 04A on November 4.

[1] Despite good outflow, the convection failed to intensify further and was limited to the eastern portion, and the JTWC did not estimate 1 minute winds higher than 75 km/h (45 mph).

[25] A tropical disturbance was observed on November 19 about 800 km (500 mi) southeast of Colombo, Sri Lanka in the Bay of Bengal.

[25] It entered the Arabian Sea on November 26, and despite being located unusually close to the equator, the system maintained convection about its circulation, aided by low wind shear.