Data request: efficiency/range as a function of battery temp

I'm thinking that when my battery is around 30deg F, I get a substantial hit to efficiency when driving (of close to 1 miles per kWh, climate control off brrr) over the battery at more like 55 degF, and I'd love to compare my experience against a standard. I'm thinking something like the Tony Williams range chart only showing efficiency (in miles per kWh) as a function of battery temperature (via OBDM) and speed (with climate control off of course). Any takers, or do we have something like that already?