Purvis is located in Lamar County, Mississippi, and has a humid subtropical climate characterized by hot, humid summers and mild winters. Summers are typically long and hot, with temperatures often reaching the high 90s Fahrenheit (mid-30s Celsius), while winters are generally mild with temperatures ranging from the mid-30s to mid-50s Fahrenheit (1-12 degrees Celsius). The area experiences a moderate amount of rainfall throughout the year, with the wettest months being January and December.

In terms of hydrology constituents, Purvis benefits from several nearby bodies of water, including the Bouie River and Black Creek. These waterways provide opportunities for fishing, kayaking, and canoeing. Additionally, there are numerous lakes and ponds in the area that offer recreational activities such as boating and swimming.

Outdoor recreation opportunities in Purvis include exploring the nearby DeSoto National Forest, which offers hiking trails, camping sites, and opportunities for bird-watching and wildlife viewing. The town is also home to several parks and recreational facilities, providing options for sports activities, picnics, and family outings.

In conclusion, Purvis, Mississippi, offers a humid subtropical climate with hot summers and mild winters. The presence of rivers, creeks, and lakes provides opportunities for various water-based activities, while the surrounding forests and parks offer a range of outdoor recreational opportunities.