HADailySensor

Daily Sensor is a Home Assistant custom component that accumulates readings from a chosen sensor throughout the day and resets at midnight. You can select how values are aggregated: minimum, maximum, sum, average (mean), median, standard deviation, or variation. It's a simple way to produce clear daily summaries from any numeric sensor.

⚠️ Critical Fix Available (v2026.2.6)

If you're experiencing a 500 error when editing Daily Sensor configuration, this fork contains critical bug fixes that are pending merge to the upstream repository.

Issue

The upstream HACS version has a breaking bug that causes a 500 Internal Server Error when attempting to edit existing Daily Sensor configurations via the UI.

Solution

Until PR #105 is merged, install this maintained fork:

Via HACS (Custom Repository):

1. HACS → Integrations → ⋮ (top right) → Custom repositories
2. Add repository: https://github.com/elyobelyob/HADailySensor
3. Category: Integration
4. Click "Add"
5. Search for "Daily Sensor" and install v2026.2.6 or later
6. Restart Home Assistant

What's Fixed:

• ✅ 500 error when editing sensor configuration
• ✅ AttributeError on config_entry property
• ✅ ValueError when source sensor is unavailable
• ✅ Options flow type handling improvements
• ✅ Code quality and formatting improvements

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Configuration

Install the custom component (preferably using HACS) and then use the Configuration --> Integrations pane to search for 'Daily Sensor'. You will need to specify the following:

• Name - Unique name for this daily sensor instance
• Input Sensor - The source sensor to aggregate data from
• Operation - Aggregation method: min, max, sum, mean, median, stdev, or variance
• Unit of Measurement - Display unit for the sensor value
• Interval - Update frequency in seconds (default: 1800)
• Auto Reset - Automatically reset at midnight (default: enabled)
• Preserve on Unavailable - Keep last value when source sensor becomes unavailable (default: disabled)
  • When enabled, the daily sensor retains its current value if the input sensor becomes unavailable (e.g., during Home Assistant restart)
  • When disabled (default), the daily sensor becomes unavailable when the input sensor is unavailable
  • Useful for maintaining accurate daily statistics across HA restarts

All sensors will be reset at 00:00 local time (unless auto-reset is disabled) and can be reset manually by calling the daily.reset service for each instance.

Use case

This component is most frequently used to create a minimum and maximum daily temperature sensor based on a temperature sensor that is provided by a weather station, but can be used for many different things.