This archive contains dry General Circulation Model (GCM) simulations with the Titan Atmospheric Model (TAM) used in “Thermal Inertia Controls on Titan’s Surface Temperature and Planetary Boundary Layer Structure” (Han & Lora, submitted to The Planetary Science Journal). We provide diurnal-cadence outputs near the Huygens and planned Dragonfly landing sites during southern midsummer, as well as global seasonal-cadence outputs spanning one Titan year. We adopted a T21 horizontal resolution (64 × 32 longitude–latitude grid) with 50 vertical atmospheric levels. Contents atmos_diurnal_case1.nc … atmos_diurnal_case4_huygens.nc16-Earth-hour cadence (≈1/24 Titan day), 50 Titan days, region near the Huygens landing site. atmos_diurnal_case1.nc … atmos_diurnal_case4_dragonfly.nc16-Earth-hour cadence (≈1/24 Titan day), 50 Titan days, region near the planned Dragonfly landing site. atmos_seasonal_case1.nc … atmos_seasonal_case4.ncGlobal fields at 384-Earth-hour cadence (≈1 Titan day), spanning 10,752 Earth days (≈1 Titan year). The data starts from souther vernal equinox. NotesCases 1–4 correspond to distinct surface thermal inertia configurations described in the manuscript.