While I would suggest you not take those LBC estimated of battery condition too seriously, I doubt that you really have to worry much about pack temperature in your climate.I've just realised from the mileage and number of QC's shown above that I've done one rapid charge every 98ish miles! Which seems much more frequent than I realised.
This suggests that not only have I used the Leaf as a long distance car (not a commuter) which is true but that it has coped well over these last three years and the battery health has stood up to it. All despite not having an active thermal management system and though the temperature does rise dramatically after three charges it's never refused to rapid charge.
This goes against the perceived wisdom... hmmm.
As you can see, even the 2012 LEAFs put through a torture test of twice-daily discharges followed by immediate DC recharges to "100%" in the extremely hot climate of Phoenix Arizona, lost capacity rapidly only during those months with very high ambient temperatures:
The full study:
You can heat up your pack with repeated DC charges, but you will probably not maintain the high temperatures for the long duration required to cause rapid capacity loss.
Further discussion here:
"Benefits of passive thermal management of battery packs
...review... the data from Vehicle/battery pack testing conducted on 2011-2015 vehicles by the AVTA, conducted in an extremely hot environment, Phoenix Arizona.
Vehicle Testing - Light Duty - All | Advanced Vehicle Testing Activity
What you will find is that passively cooled BEVs suffered rapid initial pack capacity loss in this climate, and so did those with ATM systems.
In fact, whatever a cost/benefit analysis of passive vs. ATM show today, the results will almost surely continue to shift to advantage passive designs in the future.
This is primarily because battery pack costs are expected to continue their rapid decline, and typical kWh costs likely will continue to increase in the future as the grid decarbonizes, by replacing cheap fossil fuel generation with more expensive renewable sources."
Benefits of passive thermal management of battery packs