Weather Station Hardware > What Weather Station Should I Buy?

PWS for Rachio?

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redcoat:
Thanks for the responses everyone!

the Davis is more than I was hoping to spend. Not sure if I'd need something extra to sync the data, too?

What would I be missing out on if I went with the one I linked?


--- Quote from: weatherdoc on April 25, 2023, 03:24:51 PM ---I do have a question for redcoat: how do you know a couple of Wunderground stations near you are off by ~20%?

--- End quote ---
I have 2 very close to me and the rainful was 20% different. I guess it could be accurate, but didn't smell right given the extent of the storm we had.

SteveFitz1:
Whatever station you choose, I'd definitely recommend also getting a CocoRahs rain gauge and put near the weather station. That will always give you a very accurate source for comparison to whatever your weather station is giving you. Then you'll know for sure how well the weather station is performing.

weatherdoc:

--- Quote ---I have 2 very close to me and the rainful was 20% different. I guess it could be accurate, but didn't smell right given the extent of the storm we had.
--- End quote ---

Ah, okay, looking at two different stations, not comparing it to a manual gauge at your house, I misunderstood. If you look at the attached image (rdu-cocorahs.png) from the Raleigh area on 23 April, you can see a wide range of rain totals, some rain gauges are fairly close together. Look at sw-rdu-cocorahs.png - those two stations are 28% different and 1.4 miles apart. So, it depends how far the stations are from each other. With this type of storm that had embedded convection, 20% difference between the stations is possible.

I agree with SteveFitz1 - having a CoCoRaHs gauge next to your weather station will help verify the weather station gauge's accuracy. No need to pay for a Davis just to make sure your irrigation system is running on the right days!

BTW, I went to NC State for my MS and PhD in Atmospheric Sciences and lived in North Raleigh and also near Rolesville off of Rt 401.

redcoat:
Sounds good.

Silly question - is there a way to empty a CoCoRaHs without just turning it upside down? Does it come off easily?

I'm thinking of putting the PWS on the roof - is it ok to have the CoCoRaHs somewhere nearby at ground level?

SteveFitz1:
You have to turn it over to drain it. You lift the funnel off and pour out the contents of the inner tube and outer tube if there's rain in it.

I have mine adjacent to my VP2 sitting about 6 feet off the ground.

Steve

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