it was hot
Ayer hacía calor.
It was hot yesterday.
Hacía calor fuera.
It was hot outside.
Él se quitó el abrigo porque hacía calor.
He took off his coat because it was hot.
Hacía calor, así es que abrí la ventana.
It was hot, so I opened the window.
Hacía calor.
It was hot.
Hacía calor en la habitación.
It was hot in the room.