Fetches historical daily weather data for a location and date range.
Uses the free Open-Meteo archive API (no API key required).
Usage
fetch_weather_openmeteo(lat, lon, start_date, end_date)
Arguments
- lat
Numeric. Latitude.
- lon
Numeric. Longitude.
- start_date
Date or character. Start date (YYYY-MM-DD).
- end_date
Date or character. End date (YYYY-MM-DD).
Value
data.frame with columns: date, temperature_max, temperature_min,
precipitation_sum, wind_speed_max, rain_sum.
Returns NULL on failure.
