US suggestions
stace001 said:
This part of the novel is set in Long Island (present day). Would it be 55 or 60m/ph?
It's normally 55 mph on the highways but that goes up to 65 mph if the area is more rural, a situation not likely to occur in LI.
City streets it will normally be 35 mph or in tightly congested areas, 30 or 25 mph. Thru a school or hospital zone, 20 mph.
Cars at speed... Driving a normal passenger car at 75mph is considered quite fast although many people do that on the open highway, even though the highest posted speed limits in the US are normally only 70mph on the "Interstate" premium federal highways.
A sports model like a hot Mustang or Corvette can easily go 130+ mph. Depending on the driver that can be dangerous, of course. And naturally an exotic like a Lambo can run in the 200+ mph category.
Some other suggestions for things using the "Imperial" system (miles, Fahrenheit, etc.)
Zero C = 32 F = a chilly day
anything less than 32 F is fairly uncomfortable.
Normal comfy temp is about 72F.
Pleasantly warm day would be 78-82 F
Unpleasantly hot weather is anything above 90F, and above 100F is seriously bad news.
On Long Island in the winter you can sometimes get below zero (F) which is quite cold for anyone. Winter temps can vary from a chilly 32F (zero C) to lower, or on a sunny winter day, up to the 40s and low 50s.
Summer can be unpleasantly muggy and hot, highs above 90F at times.
Those may help you with your "feel" for Fahrenheit temps.