Best place to live in the United States with temperature not escaping 50-90 F except for freak occurrences (assuming a 60-80 range will result in too short a list).
City Name:
Explanation:
City Name: San Diego
Explanation: 'Cause it’s a really nice spot.
I don’t think there is any place in the US that meets those criteria. San Diego is a good bet, but average lows are 48 in Dec and 49 in Jan. So it isn’t a freak occurrence to see mid 40s temperature.
Let’s be optimistic and not include average lows and only consider the mean between the typical average high and average low.
If temperature is your number one priority, I don’t think you can beat Honolulu. The coldest recorded temperature…ever…was 47. The hottest recorded temperature…ever…was 95.
The average daily swing is 65/80 in the winter, and 75/88 in the summer.
It’s amazing what being near the equator and surrounded on all sides by thousands of miles of water will do to moderate your climate.
Yes it is the best I’ve ever experienced, I’ve lived there (and I want it back!).
Most of the area around SF Bay fits this bill, notice this is different from saying the SF Bay Area. Think SF, Daly City, Marin City, Oakland, Berkeley Albany etc… with temps there rarely dropping into the forties or rising much past 90. You can extend the typical lows and highs 20 degrees each way by travelling as little as 20miles east or SE from any of those citites.
Yep, I was coming here apparently to agree with aerodave and ClarenceClancy
State: Hawaii
Reason: it’s just paradise (unless you need to find a job)
Yeah, Honolulu is amazing!
Key West, Florida, fits your criteria. Highest of the average highs is 90 and lowest of the average lows is 64.
Like others have said, Hawaii has the best temperature range - never too hot and never too cold. Hawaii has the highest record low temperature (12 degrees F) and is tied with Alaska for the lowest record high temperature (100 degrees F).
Yep, that sort of range as described in the OP pretty much means you are in Hawaii, Key West or in one of the island territories that are between the tropics. As smallish islands, we get our temperatures moderated by the ocean and tradewinds.
I’ve never experienced a non-heat-indexed 100F day in SJU nor a night below the upper 50s; and up in the hills I’ve never experienced below 45F.
(And BTW that 12F low in Hawaii is likely thousands of feet way up Mauna Kea, not at Sea Level)
“Best” is terribly subjective. Many of the places that meet your criteria (Hawaii, St. John, Puerto Rico) are very small, very expensive, and very remote. Great to visit, not so great to live there.
Any of the Caribbean islands are at risk for tropical storms and hurricanes.
San Diego is a wonderful place, but it’s really crowded and expensive. However, I’d pick it over an island if I had to choose. Something about being on the continent appeals to me.
San Juan, Puerto Rico might be good. Wikipedia says that average highs can get up to 87ish, with a record high of 98, but the record low is 60! It looks like the temperature doesn’t vary by a great deal over the course of the year, unlike, say, DC or Philly.
Honolulu or Hawaii in general? I know that most of the islands have desert areas, and Kawaii is one of the rainiest places on Earth, but is there really a lot of variation throughout the state?
According to weather.com, the lowest monthly average for San Francisco is 46°F, and the highest is 70°F, but in reality you would expect temperatures to vary from 55-65 most of the year.
Well, I was just answering the OP’s request for a city. And of all the “cities” in Hawaii, Honolulu is as good for climate as any other. It’s a bit dry in Kona, and in Hilo it rains every goddamned day for 9 months out of the year. Head over to Maui, and I suppose Kihei and Kahului are pleasant enough. But as far as climate is concerned, they put Honolulu in a damned fine place.
A good earthquake might change that. 
However, I do miss the San Francisco climate. It’s so steady, you can barely call it “weather.”
I normally called it “fog”, myself. I interned there during a summer in law school - I was amazed by how much I ended up appreciating the fireplace in the bar next to my apartment.
It’s a great city, though - I’d be happy to live there again.
San Diego gets plenty of rain in the winter, too. When I lived there, all my midwestern friends and relatives chose January and February to come visit. And got drenched!