I haven't seen an improvement yet, and below please find more evidence of rather significant differences what you see KRDU report and what RACHIO pulls from KRDU (>110% of field capacity in one case). KNCRALEI221 is my nearest station, but KRDU is only 1.7miles away.
I also observe that when I sometimes go back a few days later, history seems to get rewritten. First I thought I was just unable to write numbers down correctly, but since it has happened repeatedly, I would need to annotate every change.
The inaccuracy of the base data combined with the moisture forecast shake my confidence a bit. You can easily see that my .46 in top (110% field capacity) is quite sensitive to .53 in differences in readout.
Also, in the graph below, you see me (or better rachio) irrigate a full round on May 21, right ahead of a forecasted weather system. I understand that scattered showers are difficult to get, but large area wide soaks are different.
SUGGESTION: currently irrigation seems an all or nothing when level at 0. In the case above, and having seen projected rain not coming through, it would be great to be able to instruct the system (from your software, or user doing it manually) to only go 30% or whatever fraction, as a safety. This could save quite a lot of water, while still dealing with the uncertainty of forecasts.
Has something changed that I am not aware of. It seemed more accurate last year...
Thanks for all your great help on this forum.