well tomorrow is the big day... the PWS goes up... here is where I am...
I bought this PWS:
Ambient Weather WS-1400-IP Link: http://amzn.com/B00O9YIEJW
This all in one weather station is unique compared to competitors because it is the only one in its price range that includes solar and UV sensors which are used by Rachio to help calculate more accurate evaporation rates. Of course it also includes the standard wind, rain, temp, humidity, and pressure sensors. By itself it will transmit to a small included box called the Observer-IP that will send your data to Weather Underground (AND ONLY WEATHER UNDERGROUND, at least out of the box... stay with me...) or you can optionally later add a console for your home with an LCD screen. For me I plan on viewing the data on my computer, iPhone, and iPad using a variety of apps.
I then purchased a small personal router:
TP-LINK TL-MR3020 http://amzn.com/B00634PLTW
This small router will then be flashed with software from Meteobridge: http://www.meteobridge.com/wiki/index.php/Home that turns it into what is called a "meteobridge". The software is free to try for 14 days but then requires a payment of $70. You then plug the small Observer-IP box that came with the weather station into this meteobridge and the meteobridge will then update not only Weather Underground with the data but basically every other major weather site of your choice including the PWSweather.com site that Rachio uses to display weather stations. It will also update a personal website if you have one. It does all this WITHOUT REQUIRING a computer to be on. This basically means I can leave the Observer-IP box, meteobox, and my home's wi-fi router router running and I get 365 24/7 updates of weather data even if all my personal computers are off.
Tonight I dug a 28 inch deep, 6 inch wide hole using a post hole digger and tomorrow morning I will purchase a galvanized chain link top rail that comes in a 10.5 ft size, but I will cut 18 inches off the bottom: http://www.homedepot.com/p/YARDGARD-1-3-8-in-x-10-ft-6-in-17-Gauge-Galvanized-Top-Rail-328913DPT/100322532
This rail will go into the hole with Quikrete leaving about 7 ft. above ground which will plug directly into a 5 inch metal pipe that comes with the weather station (connected to the bottom). So essentially the bottom of my weather station will sit about 7.5 ft above ground level and the top about 8.5 ft above ground level.
By tomorrow night I hope to have everything running and within a few days I hope it appears on all the sites that Rachio sees. I'll try to post some pictures and what I learned when its done.
Total cost of the project will be about $300 including everything.