Grouse Mountain mild as the Lower Mainland. In December (the coldest month statistically), Grouse Mountain has an average high and low of and respectively. This freeze/thaw cycle can allow for large amounts of rain to fall on some occasions every winter. Nonetheless, heavy snow is more frequent in the winter, which allows for a deep snow-pack, lasting on average from mid-November until early May. Summer is warm and relatively dry. August is the warmest month, with an average high and low of and respectively. Grouse Mountain has built an observation deck (accessible by elevator) on a 1.5 megawatt wind turbine of Leitwind
Driven grouse shooting years have resulted in shortages of grouse, to the extent that grouse shooting has had to be cancelled in some locations. This has led landowners in upland areas to substitute pheasant and partridge shooting for grouse shooting, with an increased risk of disease spreading from rear-and-release pheasants and partridge to nearby red grouse. The driven grouse shooting industry has been criticised by some conservation bodies for harming moorland habitats and for illegally persecuting predators, particularly the hen harrier, which preys on grouse chicks. The RSPB has called for shoots to be licensed, and former RSPB Conservation Director Dr Mark Avery