I have lived in Houston.  In fact I   have lived all over the Country-Hawaii, Oregon, Northern California, Southern California, Arizona, West Texas, New Mexico, Virginia and  of course  Montana.
Using my heat comfort-hunting-shooting-livability index scaling here is how I rate.
1.  Montana   
2.  Oregon-Southern 
3.  Arizona    
4   New Mexico  
5.  West Texas
6.  Hawaii
7.
8.  Virginia-Northern-beltway region
9.  
10. Northern California
11.
12. Southern California
13. Houston
Sorry Zulu, the only reason Houston drops below SoCal is that oppressive weather-heat.
I'll take Montana's two or three months of sub freezing weather over Houston's 8 months plus of soaking  high humidity any day.
Down side, I live in the city, so  can't shoot cannons in the city even for the forth of July, I have to go 200 yards down to the end of the street to the RV park to shoot or drive 6 miles out to the gun club.  But the club is moving to the the Airport, 2 miles away.