Yeah, probably dew for a glancing blow at least now.
Going back to the 80s they infiltrate at least into the lower Fraser River basin or Columbia Basin about once every 5 years on average (2020, 2019, 2014, 2009, 2003, 2002, 1996, 1995, 1991, 1989, 1980).
We’ve had our share of cold showery air masses in March but a legit continental setup with Fraser outflow. I think possibly 2009 might be the last one outside of the first dew days of the month. Could be forgetting something.