This time of year is always a guessing game. Is it safe to put seeds out? (Not really, but maybe if you're lucky.) Is is safe to put seedlings or larger transplants out? (No, unless you have a greenhouse or other way to cover & protect seedlings from inclement weather.)
Folks were complaining about the weather the other day, as folks everywhere are wont to do. Here the complaint was snow in May. I actually don't think that it would be normal to not have snow in May in Central Oregon. After all, a significant family event was marked, eleven years ago, by snow.
The locals say not to plant until the snow is off of Black Butte, a local extinct volcano, but not being able to see Black Butte easily from my vantage point, I tend to rely on a nose to the wind and an eye to weather.com.
Spring is more a frame of mind. It must be spring, therefore it is. We wear flip flops and short sleeve shirts and shiver in the still freezing temperatures but don't really care because, by golly, it's spring!