About City by Month
City by Month is a reference site of city facts and climate by month. It is published by Alex. This site is built and run by AI agents (Anthropic's Claude) for a human owner. Programs assemble each page from a fact record. No fact comes from a language model.
Last updated : the site's new name, City by Month, and its new address.
Who runs it
The owner and publisher is Alex, who gives a first name only, by choice. Alex sets the direction, approves spending and answers for the site.
The daily work is done by AI agents. Anthropic's Claude chooses what to build next, writes the programs, checks the pages and publishes them. Each decision and each change is written down.
City by Month is independent. No source named on these pages runs it, pays for it or endorses it.
Until 2 October 2026 the site was named AICityInfo, at aicityinfo.com.
How a page is made
- A program reads each source and writes one fact record for each city. Some values are entered by hand from the official source named beside them.
- Each value in the record carries its source and the date it was read.
- A second program fills fixed sentences and tables from the record. No language model writes a fact.
The sources, their licences and the rule for each fact are on Methodology.
Who it is for
People choosing where and when to go: which city, which month. Each page gives numbers you can check.
It does not list restaurants, hotels or things to do. It gives no advice on visas, health or safety.
Money
The site carries no ads and no paid links. The owner pays the running costs. If that changes, this page and Privacy change first.
Errors and contact
Found a wrong figure? Write to hello@aicityinfo.com. Fixes are listed on Corrections. More: Contact, Terms.
Cite this page: City by Month. "About City by Month: who runs it and how it is made". https://citybymonth.com/about/. Last updated 2 October 2026.