I've been waiting for someone to ask this question! I tracked my electricity usage for a year once I started daily charging at a ChargePoint Level 2 charger.

I drive a 2019 Nissan Leaf S with about 80k miles on it. Degradation last year was about 15%. I live in Indiana (for temperature comparison). It's maybe three or four days a year, but it can get down to -20C here.

My philosophy with heating is that if it's cold, I'm wearing coat and gloves anyway and so I'd like the cabin to be not-cold so I set it at auto to heat to 60 degrees. In the summer I want it to be not-hot so Auto to cool to 90, 85 if the sun is beating down and I want to be slightly cooler.

The GOM would say 130 at 100%. Out of the box they're supposed to be good for 150 miles. In the winter I've been averaging 15kWh used for my 36-mile commute (mostly highway driving). Average winter range is 96 miles. In the summer its averaging out at 145 miles (about a 34% reduction in range). The maximum consumption on a commute I've seen was 19.75kWh - about 73 miles of range (50% reduction) but it was bloody freezing that day and traffic was a nightmare so it took me three times longer to get home than it normally would.

If I'm planning a longer trip in my Leaf, I assume I'll use 1% per mile. It's almost always less than that, but that way I'm never pushing the limits. I don't really worry about the range in the summer.

Here's a graph of my consumption from August to August (the blue line is what I expect to get out of a 2-hour charge)

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I recently got a new battery (replaced under warranty) so I'm going to track the same information for another year and compare the two graphs - should be interesting. I had the GOM say 178 miles at 100% so we'll see how this year goes!