WeatherLink plans & your data
How Pro Weather works with every WeatherLink plan, turning your station's readings into a permanent archive you own.
Your station's data lives in your Davis WeatherLink account, on one of WeatherLink's subscription plans. Pro Weather works with all of them. This page explains what each plan gives you, how Pro Weather behaves on each, and the value it adds on top.
Two different “Pro” plans
WeatherLink Pro / Pro+ is Davis's subscription for your station's data, paid to WeatherLink. Pro Weather Pro is this app's plan, paid to us. They are completely independent. You can run Pro Weather on a free WeatherLink Basic plan, or pair a WeatherLink Pro station with Pro Weather's free trial.
The WeatherLink plans
WeatherLink's plans mainly differ in how often your station uploads and whether your history is available to apps like Pro Weather:
| WeatherLink plan | Cost | Live data via API | Historic data via API | Upload interval |
|---|---|---|---|---|
| Basic | Free | Current conditions only | Not available | ~15 minutes |
| Pro | Paid (annual) | Current + historic | Full archive | down to 5 minutes |
| Pro+ | Paid (annual) | Current + historic | Full archive | down to 1 minute |
The key difference: only Pro and Pro+ expose your historic data to third-party apps. On Basic, only current conditions are available, at 15-minute intervals. (There's also a negotiated Custom plan, rarely relevant to hobbyists.)
Plans are set by Davis
WeatherLink plan features and pricing are set by Davis Instruments and can change. Check weatherlink.com for the current details.
What Pro Weather needs
Just a free WeatherLink v2 API key. Every plan, including Basic, can generate one. See Connect your WeatherLink station.
How Pro Weather works on each plan
On WeatherLink Pro or Pro+
- Pro Weather reads your station's rich historic archive every few minutes.
- It also backfills your past data: working backwards in time, it imports your existing history as far back as your WeatherLink records go, so your charts, records and almanac can start out full instead of empty.
- Live readings refresh as often as your plan uploads (as frequent as every minute on Pro+).
On WeatherLink Basic (free)
- The historic API isn't available on Basic, so Pro Weather can't import your past data.
- Instead, it archives every current reading as it arrives, building your history forward from the day you connect.
- Live conditions update roughly every 15 minutes, the Basic upload interval.
Either way, Pro Weather keeps collecting and your archive only grows.
The value: a permanent archive you own
This is the big one. WeatherLink Basic keeps only a limited, rolling window of records and doesn't expose history to apps at all. Pro Weather stores every reading your station produces in its own database, permanently. It's never deleted when a subscription lapses, only if you delete the site.
That archive is what powers:
- Historic charts that unlock from 24 hours up to a full year
- All-time records and monthly climate summaries (the almanac)
- The 30-day wind rose
So even on a free WeatherLink Basic plan, your weather history keeps growing and stays yours. The longer your site runs, the richer it gets.
It won't strain your WeatherLink quota
Pro Weather fetches your station's data once every five minutes and caches it, then serves that cached data to every visitor. Your WeatherLink API is polled a handful of times, not once per visitor, so even a busy site stays light on your quota.
Which WeatherLink plan should I use?
- Just getting started? A free WeatherLink Basic plan is enough to publish a complete, live site. Your history builds up from the day you connect.
- Want history from day one, or the finest resolution? Upgrade your station to WeatherLink Pro (or Pro+) so Pro Weather can import your past data and refresh more often.
Remember, these are WeatherLink (Davis) plans, separate from your Pro Weather plan.