Definitely not in the grand scheme of things.
Caveat is that (especially north of Roseburg) with our access to low level arctic air we do see much colder historic extremes than the central valley of CA does. Portland and Bellingham have seen single digit maximums before and -15 to -20F minimums have been achieved in the lowlands. Whereas the whole of Bakersfield to Redding has never seen highs below 29 or minimums below 10 in its recorded history.
The LIA had some amazing weather patterns that likely exceeded anything observed during the 19th century.
In fact, by the 1810s the NPAC storm track had already shifted substantially northward from its (apparent) latitude in the 1600s, indicative of broadening NPAC Hadley Cell in response to heating.
Easy to lose perspective on how substantial the climate change has been over the last 400yrs. The current climate regime is already analogous to the peak of the medieval warm period, and we’re still warming.