New Delhi: Monsoon is expected to arrive over Kerala on June 1, its normal arrrival date.Secretary, Ministry of Earth Sciences, M Rajeevan in a tweet on Thursday said: “Extended range forecast suggests monsoon will arrive over Kerala on time, around June 1. This is an early indication. “The official IMD forecast will be on May 15 and rainfall forecast update around May 31,” M Rajeevan said. “Early analysis indicates monsoon will arrive around June 1 over Kerala.. Like we have projected earlier its likely to be a normal monsoon this year,” Rajeevan said.India received above-average monsoon rains for two straight years, and another normal season this year will help the agriculture sector in particular.