We all have really important moments, a few times in our lives.
Tofugu has almost been eaten by the hungry shark many times.
How many times do I have to say the same thing before you understand?
If someone asks you what occurrence or what degrees they're really trying to ask you how many times something happened. Sometimes they're asking what temperature it is too.
The reading is a combination of kun'yomi and on'yomi readings. That being said, both readings for both kanji are the readings you learned already, so you should be able to read this.