Climatic controls on species and their distributions are predicted to become more influential in the coming decades. In North America, one species expected to be especially impacted by climate change is the American pika (pika). This species is adapted to cold weather and struggles to thermoregulate as temperatures rise. It is also highly territorial, making pika populations easy to monitor. These characteristics have made pikas useful for studying climatic controls on habitat occupancy throughout their range. Southern subspecies might be especially vulnerable to warming; a 2016 study of O. p. saxatilis in the southern Rocky Mountains projected possible extirpation in Rocky Mountain National Park (ROMO). We evaluated evidence for this prediction using 2016-2024 occupancy data from 72 permanent plots established 15 km south of ROMO. We found no evidence of declining occupancy through 2024, but generalized linear modeling of occupancy as a function of climatic covariates demonstrated that winter temperature and winter snowfall were the most robust predictors. Plots with higher snowfall during cold winter temperatures were more likely to remain occupied, while wetter years and warmer winters reduced occupancy, likely due to a less insulating snowpack. Such climatic controls suggest an uncertain future for this subspecies.