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
Grouse Mountain of the nearby Grouse Mountain Resort. McPherson also supervised the FMCBC-sponsored first rebuild of the Grouse Grind in the early 1990s, which Grouse Mountain Resort assisted with. Between 2010 and 2015, the rebuild of much of the Grind as rock and wood stairs, plus annual trail maintenance, contributed to the length of the Metro Vancouver seasonal closure of the Grind for six to seven months during winter and spring. The land is owned by the Greater Vancouver Water District (GVWD) arm of Metro Vancouver, but as of May 1, 2017, 185 acres was designated a Metro Vancouver Regional Park. The