Gurb, you can probably relate to the longest day of the year this far north meaning sunset lasts until about 11pm with red still visible until midnight....then first light about 3:30am. By about 4am the birds are so annoying you have to close the window and blinds just to get back to sleep, then to wake up to full sunlight at 6am. I don't know how they stay sane up in northern canada and alaska.
40 years ago we used to portage into a lake system north of Kenora about 50 miles. There is a huge difference in just that 100 or so miles. I don't think the sun even goes all the way down there.
The daylight changes pretty fast as you go north, here in Grand Forks we have 16 hours and 2 minutes of actual sun today and 70 miles south in Fargo it is 10 minutes less. It is light a lot longer than that and if it is clear you can see the red tint to the north all night. Both of you are about 70 miles farther north than me so you can add a little more daylight.
Yes, even 100 miles makes a pretty big difference in length of day. Going a little further south I was in Chicago a couple years ago at the end of july, I looked outside at about 8:30pm and it was pitch black, really caught me off guard.