The /ask and /selling-first forms collect a first name, email, why you are writing (a move here, a realtor where you live now, or both), optional cities, timeframe, and whatever you choose to write. The checklist field collects only an email. Both are written to a private local store on the server until a mail provider is connected.
Weather and Census requests go to Open-Meteo, the U.S. Census Bureau, and the National Weather Service. Those services see a server request, not your form answers.