Groundhog Day API vs wttr.in
Same instrument, two spec sheets — measured, not claimed.
Groundhog Day API vs wttr.in: common questions
Which is more reliable, Groundhog Day API or wttr.in?
On our scheduled checks, wttr.in leads on measured uptime — Groundhog Day API at —% versus wttr.in at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Do Groundhog Day API and wttr.in need an API key?
Neither needs a paid key — Groundhog Day API is callable with no signup, and wttr.in is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Groundhog Day API and wttr.in from the browser?
Yes — both Groundhog Day API and wttr.in send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are Groundhog Day API and wttr.in free for commercial use?
Groundhog Day API has unclear commercial terms, and wttr.in has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.