Here is SE Ohio we pretty much have the same climate that DC does and I can say that there is no way without a grrenhouse that they have tomatoes now. Ours are now covered with flowers but the fruit is still weeks away.
I look for 60 degree nights to send my plants into high gear. We’ve only had a few of them so far but it looks like the last few have gotten things moving at a pretty good pace.
I have peppers forming on the plants but only a couple of flower buds on the tomatoes.
I planted snap peas and maters, my snap peas are long gone, but while they were in season, they exploded...but my maters are but small bb-sized and weeks away from ripening.
Ed
I don’t believe SE Ohio has had anything near the same weather as we have had in DC this spring.