Shelbina, Missouri is a small town located in Shelby County in the northeastern part of the state. The town experiences a humid continental climate with hot summers and cold winters. Summers are generally warm and humid, with temperatures reaching the upper 80s to low 90s °F (30-35 °C). Winters, on the other hand, can be quite cold, with temperatures dropping to the low 20s to upper 30s °F (-5 to 5 °C). Precipitation is evenly distributed throughout the year, with an average annual rainfall of around 40 inches (1016 mm).

As for hydrology constituents, Shelbina is situated in a region with several rivers and streams. The Salt River flows nearby, providing opportunities for recreational activities such as fishing and canoeing. Additionally, the Mark Twain Lake, located to the northwest, offers a variety of water-based activities, including boating, swimming, and camping.

Outdoor recreation enthusiasts in Shelbina can also explore the nearby Shelbina Lake Conservation Area, which offers opportunities for hiking, birdwatching, and hunting. This 775-acre area features diverse wildlife and scenic landscapes, making it an attractive destination for nature lovers.

In summary, Shelbina, Missouri experiences a humid continental climate with hot summers and cold winters. The town benefits from its proximity to various water bodies, including the Salt River and Mark Twain Lake, providing ample opportunities for outdoor water activities. Additionally, the Shelbina Lake Conservation Area offers a range of recreational activities for nature enthusiasts.