25th June..

With the Monsoon trough getting established over NW plains...Monsoon moved into UP, Delhi NCR and east Rajasthan

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South West Monsoon moves into Mumbai & Delhi simultaneously !

It's not very often that we see this..in fact in the author's last 55 years of weather experience,  I've noticed only on two occasions 

1. When Delhi got the Monsoon a day before Mumbai 

2. On the same day.