I am a little surprised about the problems some gardeners have with irrigation. The entire US West has a Mediterranean climate. The northern boundary ends in southern WA, if I remember right but it really reaches up here if we only consider the growing season. Characteristic is that most precipitation falls during the winter.
Here, the average rainfall for the months of summer: less than 2 inches. Humidity makes a difference to plant stress. It falls below 20% every summer afternoon. (Except yesterday when we had a shower of rain and it stayed at 50%

!)
"Drought" has to do with averages and falling below them. I imagine that a drought is locally catastrophic when native flora require 20" through the 3 months of summer and gets only 10". Okay, that would be very bad there but an unheard of wet summer here.
Maybe the entire country around here is set up for these conditions. You want to grow something other than wheat, use irrigation. I'm putting down 3/4" to 1" of water twice a week. Have I already said it? During the summer months, it would be best to have about 1/2" to 3/4", 3 times each week ... on the rockiest soil this side of the Rockies! Generally, I can't schedule irrigation that often.
The water pressure is there, I suppose because it is needed. I broke the last of my lighter weight rainbird sprinkler stands, recently. I run two on the little veggie garden easily,
too easily. Watched too far from the valve to get it shut off, or race to put my custom concrete block on the feet of the stand. It fell over backwards because of the water pressure! Distance in "hose feet" from that valve: 275 feet. My feet don't travel that fast ... I need better foresight

. Broken plastic fitting can be replaced ...
Steve