Im in Virginia around 30 miles south of DC in the United States
So your climate should be something between
Washington DC
http://www.worldweather.org/093/c00270f.htm#climate and
Richmond Virginia
http://www.worldweather.org/093/c00816f.htm#climate
Thats not a big difference.
But compare with my table of Hamburg, Germany
http://www.worldweather.org/016/c00055f.htm#climate
The difference is not so big in the coldest winter month (January), but it is big in the hottest summer months (July/August). In your area the "average daily minimum" is nearly as high as in my area the "average daily maximum", daily average in summer is much higher!
Those high summer temperatures are a problem for hardy Pinguicula, as they come from mountain regions.
I don't know if you can keep them on the long run. From the species that I know personally (P. macroceras, P. grandiflora, P. vulgaris) I would try P. grandiflora first, as they can withstand a little bit (but not much) higher summer temps than the two others and they are offered often.
Perhaps some hardy Pinguicula species from Spain can withstand even higher summer temperatures, but I don't know for sure (those species are seldom offered, even here in Europe and I don't have them).
And I'd try to keep them in full shade all day long during the two hottest months of the year and perhaps provide a shower of cool water in the evenings, if you want to give it a try.
BTW: I'm wondering where you can purchase hardy Pinguicula in the States. I have looked around the CP nurseries as somebody on Terraforums had asked me, but at most I could find temperate species like P. lutea or P. primuliflora, which cannot withstand hard frost as the come from the U.S. Sun Belt.