For a general listing of events in New York City, try Time Out NY, or the New York Times Arts and Leisure or Weekend sections, etc. There are very many wonderful outdoor events all over the city.
Here, I usually list special events that might not be noticed amid the overwhelming choices available in New York City, but in August we spend much time in the beautiful Hudson Valley and making other short trips.
Since this blog is about the city, I only occasionally list near by trips. If you are going to visit NYC and would like some suggestions about nearby trips, please email me at this site and I will be glad to reply.
This NYC listing will resume at the end of August.