This year the Vesak celebration were organized by The Buddhist Community Center Letchworth (BCCL) on 14th ,17th and 18th May, 2014. Special retreat (Sill programs) were arranged at the temple premises on 14th Vesak Poya Day (full moon day) and 17th Saturday with the guidance of the Chief Incumbent Most Ven. Dediyawal Wimala Thero and the resident monk Most Ven. Mathugama Palitha Thero. The Most Ven. Wimala Thero conducted the Astangha Maha Sill and meditation sessions to the Upasaka, Upasikas (devotees) on both days followed by Dhamma sermons, Dhamma discussions and Buddha Pooja were conducted by Most Ven. Palitha Thero. A large turnout of devotees observed Sill on both days. A special sill program for children was organized from 9.00 a.m. to 12.00 noon on 18th May.

The Vesak celebration was held by Buddhist Cultural Center Letchworth (BCCL) on 25th and 26th May, 2013. A special retreat (Sill program) was arranged at the temple premises with the guidance of the resident monk ven. Mathugama Palitha Thero. on Saturday 25th May. There was a large turnout of devotees who observed Sill.

The Vesak celebration was held by Buddhist Cultural Center Letchworth (BCCL) on 5th and 6th May, 2012. A special retreat (Sil program) was arranged at the temple premises with the guidance of the Chief Incumbent Ven. Dediyawala Wimala Thero and the resident monk Ven. Kahaduwe Shanthideva Thero on Saturday 5th May. There was a large turnout of devotees who observed Sill. Ven. Kahaduwe Shanthidewa Thero delivered a Dhamma sermon and conducted the days program including meditation, Buddha Pooja and invoking blessings to all.

A 'BUDDHA DAY' retreat program was held at Letchworth Buddhist Temple on 22nd May 2011 from 08.30am to 04.30pm to commemorate 2600 years completion of Enlightenment of The Lord Buddha, his Birth and Passing away.