In the early evening of 5/2, we had a rain storm come through our area. I have a PWS that we use for weather info, and it had registered .22 inches prior to the Flex Daily scheduled run at 9:14 PM, and .61 inches overall. The controller hadn’t changed the schedule, so I double checked that the PWS was reporting in properly and it was - I could see the precipitation total by going to the weather station via the Rachio app. It had reached .22 inches by 8:20 PM and was continuing to rain at the time the sprinklers were scheduled to run. I let it go all the way until 9:14 without cancelling manually because I thought maybe it would catch it at that time. Nope - the sprinklers turned on as we were still in the middle of a downpour, so I ended up manually stopping the schedule.
I assumed the PWS was the problem, but everything looks good and the data had reported in quickly so there was no delay in data. This morning (5/3) it did skip today’s watering due to the rain last night, so I know the Rachio is kind of working. I just don’t understand why it wouldn’t have stopped last night’s watering since it had rained plenty prior to the schedule starting.