Weather Station

Level: Advanced 60–90 min

Concepts: StateAlgorithms

Solutions: C# | TypeScript | Python

Implement a weather station system that processes weather data, calculates statistics, and predicts trends. The system should handle various weather parameters and provide meaningful insights.

Requirements

  1. Process weather data
    • Temperature (current, min, max, average)
    • Humidity levels
    • Barometric pressure
    • Wind speed and direction
    • Precipitation amounts
  2. Calculate statistics
    • Daily, weekly, and monthly averages
    • Trend analysis
    • Extreme weather conditions
    • Weather patterns
  3. Generate reports
    • Current conditions
    • Historical data analysis
    • Weather forecasts
    • Alert conditions

Hint

Start by implementing the basic data collection and storage, then add the statistical calculations. Consider using a time-series database or similar structure for efficient data storage and retrieval. Think about:

  • Data validation and error handling
  • Efficient data storage and retrieval
  • Statistical accuracy and precision
  • Real-time processing requirements

Bonus

  • Implement weather prediction algorithms
  • Add support for multiple weather stations
  • Create a visualization system for weather data
  • Implement weather alerts and notifications
  • Add support for different units of measurement

Reference Walkthrough

Full C#, TypeScript, and Python implementations live at tddbuddy-reference-katas/weather-station with the same twenty-four scenarios across all three languages, fluent StationBuilder and ReadingBuilder, a Clock collaborator so tests don’t depend on real time, and configurable alert thresholds.

This kata ships in middle gear — a single commit per language with the full domain design. The Station aggregate records validated weather readings, computes min/max/average statistics across temperature, humidity, and wind speed, and evaluates configurable alert thresholds. See the repo’s Gears section for why that’s a deliberate teaching choice.