Meteor showers to watch: Pi Puppids, Lyrids New Jersey Herald According to one source, they are the oldest known meteor showers. The Pi Puppids come from a comet named Grigg-Skjellerup and occur April 18-25, peaking the night of April 23-24, and may have a rate of 18-42 per hour. Moonrise is somewhat after midnight, so moonlight might be less of a concern. Fireball meteor uk