Yes, but you should not expect good blooming performance during the darker third or half of the year. Some roses will make long spindly growth and lean toward the sun. It might be better to reduce fertilizer and maybe water for these. Is this something that will get worse as trees grow over time?

Even in November or February, some roses will do OK with this exposure, especially those with multiflora heritage, generally not hybrid teas.

I have an area on the north side of the house. In spring-summer-half-of-autumn it is about 6-8 hrs of sun. In half-of-autumn and winter, 1 hour of sun. The roses do well and have for the 4 years since I planted them. I think if they get lots of sun over the course of the growing season, they can get by with a few months of shade because they've been able to store up some carbohydrates in the sunny portion of the year.

Of course, I am in a mild climate--that doesn't hurt either.

But as michaelg said, if this is due to tree growth and it will get shadier over time, plant something else, or consider removing or pruning some trees...

I don't know how well they would do in your particular part of the country, but one class of roses with a lot of multiflora heritage that is famous for growing & blooming in shade is the Hybrid Musk class of roses. They aren't small roses, but rather true flowering shrubs, often 5' high or higher. Many of them are also nicely fragrant, and many of them have white, pale pink, or pale peach/apricot colored flowers. The flowers are usually small and fairly simple in effect, but they're borne in variously sized clusters.

The trees casting the shade are well established and look like they have already reached their full height, or close to it. One is a maple and will eventually drop all of it's leaves, the others are very tall pines on my neighbors property that are pretty far away but cast long shadows.
I have a couple of roses in pots right now and they are doing well, their growth has slowed lately but that could be as much from the cooler temperatures as it could be from the extra shade. The Joseph's Coat is getting leggy but since it's a climber I think that's normal...

Thanks for the advice!