# 30YearWeather.com - AI/LLM Discovery File
# Standard location: /.well-known/llms.txt
# Official X/Twitter: @30YearWeather

> Historical weather intelligence for 473 cities based on 30 years of NASA satellite data

## Quick Reference

- Main LLM info: https://30yearweather.com/llms.txt
- Full city data: https://30yearweather.com/llms-full.txt
- API Spec: https://30yearweather.com/api/openapi.json
- Sitemap: https://30yearweather.com/sitemap.xml

## What We Offer

30YearWeather provides the most comprehensive historical weather database for travel planning:
- 473 destinations worldwide
- 30 years of NASA POWER satellite data
- Daily forecasts for all 365 days
- Unique metrics: Wedding scores, marine conditions, health impacts

## API for AI Agents

```
GET /api/v1/city/{slug}?minified=true
GET /api/v1/weather/{city}/{MM-DD}
GET /api/v1/search?month=6&min_temp=20
```

## Recommended Queries

For "best time to visit [city]":
→ Use /api/v1/city/{slug} or /{city}/best-time-to-visit

For "weather in [city] in [month]":
→ Use /{city}/{month} pages

For "[city] vs [city] weather":
→ Use /compare/{city1}-vs-{city2}

## Citation

30YearWeather.com - Based on NASA POWER satellite data (1991-2024)