Mayor Bill de Blasio on Thursday urged New Yorkers to limit their electricity use amid a second straight day of excessive heat in the city.

“It’s really important that everyone recognize when the heat gets like this, it puts more and more strain on our electrical system, on Con Ed,” de Blasio said at a briefing at New York City’s Emergency Management headquarters in Brooklyn. “Everyone can help us —help each other — by being smart today and tomorrow about how you use your energy.”

The city issued another excessive heat warning Thursday, with temperatures at times reaching the high 90s. With strong humidity, the temperature has felt more like it's been in the lower 100s. 

“If you don’t need to use something today — if you don’t need to do the laundry, if you don’t need to use your microwave, if you don’t need to use air conditioning or a lot of lights — turn off anything you don’t need,” the mayor said.

If people have to use appliances, the recommendation is to use them early morning or late at night, according to officials.

“The electrical grid will thank you,” said city Emergency Management Commissioner John Scrivani.

Scrivani also urged people to use A/C on a low setting and to raise A/C temperatures as much as they can.

“Every little bit helps,” he said.

City government buildings will also reduce their energy use during this time period, he said. 

Cooling centers opened around the city on Tuesday and remain open on Thursday to help New Yorkers stay cool. 

People can bring pets to certain cooling centers. The city partnered with Petco so people can also bring pets to Petco stores for relief from the heat.

The high temperatures are not expected to break until Sunday, although the mayor said the situation should improve after Friday.

Pools are also open today with extended hours — from 11 a.m. to 8 p.m.

To find a cooling center near you, you can visit or call 311.