What is the best weather for electric cars?

The ideal weather for an electric car battery is 70°F without precipitation. If the temperature drops to -21°F or rises to 95°F, however, the range of many electric cars will drop by more than a third. Even newer electric cars with battery cooling systems lose their charge in hot and cold weather. So how do you keep your battery working in bad weather?

What effect do rain and high humidity have on the distance covered by an electric car?

Rain does not affect the battery as much as heat or frost, but many owners of electric cars notice that in rainy weather the range is reduced. The car has to spend its energy to run the wipers, headlights, and heating the interior.

When it rains, the car is harder to drive because of the decreased resistance in the tires. If you’ve ever driven through a deep puddle, you may have felt that as soon as the car enters the water, it puts up resistance, and the speed drops. When you drive an electric car on a wet road in the rain, the same thing happens, and the slippery road takes miles off the range.

One of the rules for storing an electric car when you are away for a long time, is to shelter it from bad weather.

How does the cold affect the EV range?

Electric cars become less energy efficient during cold weather. The low temperature significantly reduces the performance of the battery, and its ability to accept a charge. This is due to a decrease in the speed of ion movement and chemical reactions. Professionals know this, but you will not find weather conditions using the Tesla range calculator, as such weather conditions can be quite varied.

Electricity is also spent to maintain an optimal temperature. Energy consumption and the kilowatt-hour to mileage ratio don’t just change because of the need to heat the car. This includes keeping the battery itself at an optimal temperature.

A study by the American Automobile Association showed that when the cabin heating is turned on, the range of any electric car is reduced by 41%. So if a Nissan Leaf is rated for 150 miles of driving, it will only go 87 miles, after which you’ll have to plug the car into a charger.

How does high temperature affect the power reserve?

When the outside temperature reaches 95°F and air conditioning is used inside the vehicle, driving range is reduced by 17%. Extreme temperatures themselves play a role in reducing range. A large negative effect on electric vehicle range is also caused by the use of HVAC in these conditions. 

How does cold weather affect electric car charging times?

The test was conducted for 30 minutes on a Level 3 charging station, with an initial charge corresponding to 20%. In the first case, the temperature was 77°F and the battery was charged to 80%. The second time the temperature was 32°F and the battery charged to 44% at the same time. The right NEMA 14-50 home charger will charge a car in cold weather with about the same consistency.

How do you calculate EV mileage, charge price under normal conditions? 

Use the cost to charge EV calculator to find out your charging cost. It takes into account home use options or is applicable to EVSE networks.  For distance estimation, use the EV range calculator, where you can find out the distance at the current charge and after recharging. To understand how long it will take to wait during the charging process, use the charge time calculator for EV.

How does the weather affect the cost of owning an electric car?

The electric car travels shorter distances in unsuitable weather. This requires more frequent charging. More frequent public charging stations [22] on the route of electric cars will partially solve this problem.  Consequently, the cost of operating the car increases accordingly. For example, another publication, along with the AAA study mentioned above, showed that using a heater when it’s 20°F outside adds almost $25 for every 1,000 miles compared to the cost of driving around town and the highway at 75°F.