Recently I've traveled to Salt Lake City and noticed that there was a "Premium Reserved Parking" section for $10/hour, which seemed like the highest hourly rate I've seen so far. Are there parking spots that are even more expensive?
Here's the full list of conditions:
This must be a regular parking rate, not a one-time special price. So a parking lot that charged solar eclipse visitors $100/hour won't count.
If there's a discount for staying longer, you don't have to apply it. In the case of Salt Lake City airport above, there's a cheaper option for $55/day, but it would still count as $10/hour as that's the base rate someone would have to pay.
If the parking rate is for a fixed number of hours (common for "event" rates), you must divide the amount paid by the maximum number of hours allowed for that amount of money. If the maximum number of hours is not clearly defined, you must divide that rate by 4, as a rough proxy to how long events usually last.
This parking lot must be accessible to the general public
It has to be self-service parking, rather than valet parking
The largest parking fee prorated per hour wins. So if there's a $1000/month rate somewhere, it would count as $1.38/hour after diving by the maximum number of hours allowed at that location.
This has to be an actual business that routinely makes money from selling their parking services. So a random house owner posting a $1m/hour rate next to his garage won't count.