How much water is being applied in 45 minutes? If you only have a one gallon emitter, that's less that a gallon and far to little for your palms.

I'm going to assume these were planted from a 24 inch container. You would need at least 4 gallons just to moisten the container soil, plus you want some of the surrounding soil to get wet. Applying a minimum of 8 - 10 gallons should do this.

Try adjusting your irrigation timing and/or adding emitters to apply enough water.

FYI, these palms are sensitive to cold temperatures too. If frost is predicted in the coming months, be sure to cover with a fabric sheet or blanket - not plastic. The cover should extend all the way to the ground with no gaps. That way it traps warmer air inside.

Thank you for the response!

There are two drippers running to each palm, one is a one gallon dripper and the other is a 1-10 gallon dripper I believe (see photo). I've opened it up full so its emmiting all it can. Do you think I should add another line?

I do wish got Mediterranean fan palms instead. Heard they last much better in AZ.

Can I wrap Christmas lights around them for the winter months to battle the frost?

Pigmy palms are much better than Mediterranean fan palms. Don't worry, your palms will bounce back. Don't know what happened to yours. It definitely hasn't been cold enough to do that to your palms, but mine looked way worse than that after last winter. Today, they look great. i put mulch around it and they look beautiful. I have not fertilized them. Did you over fertilize or over water?