Snowmelt is a critical source of soil moisture recharge and streamflow across western Canada. Snow droughts – extended periods of low snow accumulation – can be caused by a lack of precipitation (dry snow drought), excessive warmth (warm snow drought), or a combination of both (combined snow drought). This study uses monthly (January to April) ERA5-Land reanalysis temperature, precipitation, and snow water equivalence (SWE) data to examine the spatial patterns, temporal trends, and potential drivers of snow droughts and changes in SWE in western Canada from 1970 to 2024. Early winter (January) is dominated by warm snow droughts, particularly in coastal and low elevation regions. Dry snow droughts are most common in central British Columbia and the southern Coast Mountains in February. Combined snow droughts are concentrated in the southern Interior Ranges in January and March. Modelled SWE trends over the period of observation are strongly negative in coastal areas and in the southern Coast Mountains, and slightly positive in the Interior Ranges and Canadian Rockies. Trends in snow drought frequency and spatial extent vary by region, and suggest that future snow droughts and regional hydrological responses to snowpack change depend on the combined impacts of warming temperatures and precipitation variability, with coastal, lower elevation, and lower latitude snowpacks at the greatest risk.