The northwestern coniferous forest biome has similar to the northern temperate grasslands of the
Western plains. But, these biomes have very different climate

conditions. The proximity to the coast is one
factor that heavily influences the climate of the northwestern
coniferous forest biome. Prevailing winds blow from the west to the
east and deliver moisture to the

first. Eventually, the winds encounter the Rocky Mountains. As this
moist air rises up the mountains, it

causing
the moisture to

and precipitate. As a result,
the average precipitation in the northwestern coniferous forest is

the temperate grasslands.