First create the following helpers in 'Settings - Devices & Services - Helpers'

- input_number.day_temp_max
- input_datetime.day_temp_max_time
- input_number.day_temp_min
- input_datetime.day_temp_min_time
- input_number.day_wind_max
- input_number.highest_daily_recorded_rainfall
- input_number.highest_weekly_recorded_rainfall
- input_datetime.highest_weekly_rainfall_date
- input_number.highest_monthly_recorded_rainfall
- input_datetime.highest_monthly_rainfall_date
- input_number.highest_recorded_remp
- input_datetime.highest_temp_date
- input_number.lowest_recorded_temp
- input_datetime.lowest_temp_date
- input_number.highest_recorded_wind_speed
- input_datetime.highest_wind_speed_date
- input_number.last_month_rain
- input_number.rain_yesterday

Then create the automations using the automation files provided.
**Make sure to change any sensor entity (in my case gw1100a_v2_2_3_###) to use the name of your entity.**