diff --git a/homeassistant/components/lyric/sensor.py b/homeassistant/components/lyric/sensor.py
index 4cdcbe5cfdd005..ec5b1aaddfddfc 100644
--- a/homeassistant/components/lyric/sensor.py
+++ b/homeassistant/components/lyric/sensor.py
@@ -133,6 +133,14 @@ class LyricSensorAccessoryEntityDescription(SensorEntityDescription):
         value_fn=lambda room, _: room.room_avg_humidity,
         suitable_fn=lambda _, accessory: accessory.type == "IndoorAirSensor",
     ),
+    LyricSensorAccessoryEntityDescription(
+        key="room_average_temperature",
+        translation_key="room_average_temperature",
+        device_class=SensorDeviceClass.TEMPERATURE,
+        state_class=SensorStateClass.MEASUREMENT,
+        value_fn=lambda room, _: room.room_avg_temp,
+        suitable_fn=lambda _, accessory: accessory.type == "IndoorAirSensor",
+    ),
 ]
 
 
diff --git a/homeassistant/components/lyric/strings.json b/homeassistant/components/lyric/strings.json
index b9547c8251475c..b1d822bd896c61 100644
--- a/homeassistant/components/lyric/strings.json
+++ b/homeassistant/components/lyric/strings.json
@@ -61,6 +61,9 @@
       "outdoor_temperature": {
         "name": "Outdoor temperature"
       },
+      "room_average_temperature": {
+        "name": "Room average temperature"
+      },
       "room_humidity": {
         "name": "Room humidity"
       },