diff --git a/homeassistant/components/airly/const.py b/homeassistant/components/airly/const.py
index c3dd51e4f69..a860a7a1b5a 100644
--- a/homeassistant/components/airly/const.py
+++ b/homeassistant/components/airly/const.py
@@ -3,6 +3,7 @@ from __future__ import annotations
 
 from typing import Final
 
+from homeassistant.components.sensor import ATTR_STATE_CLASS, STATE_CLASS_MEASUREMENT
 from homeassistant.const import (
     ATTR_DEVICE_CLASS,
     ATTR_ICON,
@@ -50,23 +51,27 @@ SENSOR_TYPES: dict[str, SensorDescription] = {
         ATTR_ICON: "mdi:blur",
         ATTR_LABEL: ATTR_API_PM1,
         ATTR_UNIT: CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
+        ATTR_STATE_CLASS: STATE_CLASS_MEASUREMENT,
     },
     ATTR_API_HUMIDITY: {
         ATTR_DEVICE_CLASS: DEVICE_CLASS_HUMIDITY,
         ATTR_ICON: None,
         ATTR_LABEL: ATTR_API_HUMIDITY.capitalize(),
         ATTR_UNIT: PERCENTAGE,
+        ATTR_STATE_CLASS: STATE_CLASS_MEASUREMENT,
     },
     ATTR_API_PRESSURE: {
         ATTR_DEVICE_CLASS: DEVICE_CLASS_PRESSURE,
         ATTR_ICON: None,
         ATTR_LABEL: ATTR_API_PRESSURE.capitalize(),
         ATTR_UNIT: PRESSURE_HPA,
+        ATTR_STATE_CLASS: STATE_CLASS_MEASUREMENT,
     },
     ATTR_API_TEMPERATURE: {
         ATTR_DEVICE_CLASS: DEVICE_CLASS_TEMPERATURE,
         ATTR_ICON: None,
         ATTR_LABEL: ATTR_API_TEMPERATURE.capitalize(),
         ATTR_UNIT: TEMP_CELSIUS,
+        ATTR_STATE_CLASS: STATE_CLASS_MEASUREMENT,
     },
 }
diff --git a/homeassistant/components/airly/model.py b/homeassistant/components/airly/model.py
index 42091d449e3..6109b6e71d9 100644
--- a/homeassistant/components/airly/model.py
+++ b/homeassistant/components/airly/model.py
@@ -11,3 +11,4 @@ class SensorDescription(TypedDict):
     icon: str | None
     label: str
     unit: str
+    state_class: str
diff --git a/homeassistant/components/airly/sensor.py b/homeassistant/components/airly/sensor.py
index 4544a806349..562cfec10d5 100644
--- a/homeassistant/components/airly/sensor.py
+++ b/homeassistant/components/airly/sensor.py
@@ -3,7 +3,7 @@ from __future__ import annotations
 
 from typing import Any, cast
 
-from homeassistant.components.sensor import SensorEntity
+from homeassistant.components.sensor import ATTR_STATE_CLASS, SensorEntity
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
     ATTR_ATTRIBUTION,
@@ -66,6 +66,7 @@ class AirlySensor(CoordinatorEntity, SensorEntity):
         self._state = None
         self._unit_of_measurement = None
         self._attrs = {ATTR_ATTRIBUTION: ATTRIBUTION}
+        self._attr_state_class = self._description[ATTR_STATE_CLASS]
 
     @property
     def name(self) -> str:
diff --git a/tests/components/airly/test_sensor.py b/tests/components/airly/test_sensor.py
index 925f3acb6d2..7db3c81f44d 100644
--- a/tests/components/airly/test_sensor.py
+++ b/tests/components/airly/test_sensor.py
@@ -2,6 +2,7 @@
 from datetime import timedelta
 
 from homeassistant.components.airly.sensor import ATTRIBUTION
+from homeassistant.components.sensor import ATTR_STATE_CLASS, STATE_CLASS_MEASUREMENT
 from homeassistant.const import (
     ATTR_ATTRIBUTION,
     ATTR_DEVICE_CLASS,
@@ -38,6 +39,7 @@ async def test_sensor(hass, aioclient_mock):
     assert state.attributes.get(ATTR_ATTRIBUTION) == ATTRIBUTION
     assert state.attributes.get(ATTR_UNIT_OF_MEASUREMENT) == PERCENTAGE
     assert state.attributes.get(ATTR_DEVICE_CLASS) == DEVICE_CLASS_HUMIDITY
+    assert state.attributes.get(ATTR_STATE_CLASS) == STATE_CLASS_MEASUREMENT
 
     entry = registry.async_get("sensor.home_humidity")
     assert entry
@@ -52,6 +54,7 @@ async def test_sensor(hass, aioclient_mock):
         == CONCENTRATION_MICROGRAMS_PER_CUBIC_METER
     )
     assert state.attributes.get(ATTR_ICON) == "mdi:blur"
+    assert state.attributes.get(ATTR_STATE_CLASS) == STATE_CLASS_MEASUREMENT
 
     entry = registry.async_get("sensor.home_pm1")
     assert entry
@@ -63,6 +66,7 @@ async def test_sensor(hass, aioclient_mock):
     assert state.attributes.get(ATTR_ATTRIBUTION) == ATTRIBUTION
     assert state.attributes.get(ATTR_UNIT_OF_MEASUREMENT) == PRESSURE_HPA
     assert state.attributes.get(ATTR_DEVICE_CLASS) == DEVICE_CLASS_PRESSURE
+    assert state.attributes.get(ATTR_STATE_CLASS) == STATE_CLASS_MEASUREMENT
 
     entry = registry.async_get("sensor.home_pressure")
     assert entry
@@ -74,6 +78,7 @@ async def test_sensor(hass, aioclient_mock):
     assert state.attributes.get(ATTR_ATTRIBUTION) == ATTRIBUTION
     assert state.attributes.get(ATTR_UNIT_OF_MEASUREMENT) == TEMP_CELSIUS
     assert state.attributes.get(ATTR_DEVICE_CLASS) == DEVICE_CLASS_TEMPERATURE
+    assert state.attributes.get(ATTR_STATE_CLASS) == STATE_CLASS_MEASUREMENT
 
     entry = registry.async_get("sensor.home_temperature")
     assert entry