|Differences exist in climate across Pennsylvania and the time frame for providing optimum conditions for trout angling during the spring is earlier in portions of southern Pennsylvania. Warmer temperatures there provide conditions better suited for trout angling at an earlier time in the spring. However, these same warming conditions also can limit trout angling opportunities by mid-spring. The combination of a mid-April opening day and the potential for these waters to become too warm for trout angling by mid-May constricts the amount of time that trout angling can be provided.
Another issue that an earlier opening day in southeastern Pennsylvania addresses is the potential for movement of stocked trout prior to opening day, as well as the fact that some fish die between the time of stocking and opening day. The staggered opening days will provide the opportunity to stock trout in southeastern Pennsylvania earlier for the earlier opening day and shift the stocking to the other regions for the later opening day. This will effectively help to shorten the times between stocking and opening day throughout the state.”