Electric vehicles lose range in extreme temperatures, but new analysis suggests the problem is far worse in cold northern states than in the hot and humid South. A study from Vaisala, a Finnish measurement firm, analyzed how weather and road conditions affect EV range across the Lower 48 states, factoring in temperature, wind, snow resistance, air density, and solar radiation.
The results show a clear geographic split.
States with hotter average temperatures consistently offered better range. The top five states for EV range were Arizona, Florida, Texas, Georgia, and Louisiana. The bottom five were all northern states: Maine, Vermont, New Hampshire, North Dakota, and Minnesota.
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Vaisala’s analysis didn’t just look at temperature by month. It also accounted for how wind and air density change the energy needed to push a car down the road, and how snow on pavement increases rolling resistance. Solar radiation, which can heat up a battery pack, was also part of the model.
The findings create an odd mismatch.
Some states with the best conditions for EV range have the lowest adoption rates. And California, which leads the nation in EV sales, doesn’t actually have ideal weather for maximizing range, according to the findings.
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Florida is the exception.
It ranks second only to California in EV sales, and it’s also one of the top states for range.
Texas also shows strong sales numbers.
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The pattern doesn’t follow the states that have adopted California’s EV mandate, either. Those states tend to be in the colder northern parts of the country, where weather appears to hit range the hardest. Connecticut and Maine, both among the most challenging states according to the analysis, have delayed adopting the mandate. One thing the study doesn’t address is how charging infrastructure varies across these states. A driver in Arizona might have good range but fewer public chargers than a driver in Vermont. That’s a separate problem, but it matters for anyone thinking about buying an EV.
The findings suggest that Southern states, often associated with heat waves and humidity, actually offer a more consistent environment for EV batteries. Cold weather saps battery chemistry and increases the energy needed to heat the cabin. Hot weather also reduces range, but the effect is less severe than what happens in a Minnesota winter. For automakers and policymakers, the takeaway is that range anxiety isn’t the same problem everywhere. A car that loses 30 percent of its range in a North Dakota January might lose only 10 percent in a Georgia summer. That difference could shape where companies push EV sales and where states decide to invest in charging networks.
