Sumner, Texas is a small town located in Lamar County in the northeastern part of the state. The climate in Sumner is characterized as humid subtropical, with hot summers and mild winters. Average high temperatures range from the mid-90s Fahrenheit in the summer to the mid-50s in the winter. Precipitation is relatively evenly distributed throughout the year, with slightly higher amounts during the spring and fall months.

The hydrology constituents in Sumner are primarily composed of creeks and small rivers. The town is situated near the North Sulphur River, which offers opportunities for outdoor activities such as fishing and canoeing. Additionally, the nearby Pat Mayse Lake provides further recreational opportunities including boating, swimming, and camping. The lake is known for its abundance of largemouth bass, crappie, and catfish, attracting fishing enthusiasts.

Sumner, Texas may be a small town, but it offers a pleasant climate and various outdoor recreation opportunities. Whether one is interested in exploring the local waterways or enjoying activities on the nearby lake, Sumner provides a peaceful and scenic environment for outdoor enthusiasts.