diff --git a/src/services/consumption.service.spec.ts b/src/services/consumption.service.spec.ts
index ca2d8e95b09bbf47ca5c6ba09717109840ad0865..384bb583109386f398532a53f6942442259efcd8 100644
--- a/src/services/consumption.service.spec.ts
+++ b/src/services/consumption.service.spec.ts
@@ -10,6 +10,7 @@ import {
   FluidStatus,
   TimePeriod,
 } from 'models'
+import { mockAvgTemperature } from 'tests/__mocks__/avgTemperature.mock'
 import mockClient from 'tests/__mocks__/client.mock'
 import {
   fetchDayDataComplete,
@@ -513,6 +514,23 @@ describe('Consumption service', () => {
     })
   })
 
+  describe('fetchAvgTemperature', () => {
+    it('should return the average temperature when data is available', async () => {
+      mockClient
+        .getStackClient()
+        .fetchJSON.mockResolvedValueOnce(mockAvgTemperature)
+      const result = await consumptionDataManager.fetchAvgTemperature(2023, 5)
+      expect(result).toBe(mockAvgTemperature.values[0].average_measurement)
+    })
+    it('should throw an error when no data is available', async () => {
+      mockClient
+        .getStackClient()
+        .fetchJSON.mockResolvedValueOnce({ nb_results: 0 })
+      const result = await consumptionDataManager.fetchAvgTemperature(2023, 5)
+      expect(result).toBe(null)
+    })
+  })
+
   describe('saveDoc & saveDocs', () => {
     it('should saveDoc', async () => {
       const mockQueryResult: QueryResult<DataloadEntity> = {
diff --git a/src/services/consumption.service.ts b/src/services/consumption.service.ts
index 57ccc0eb33b970a7634eee1983bcdeb40d89907a..bdd8ba0986acf45bda318329278e1e046ca2e2e3 100644
--- a/src/services/consumption.service.ts
+++ b/src/services/consumption.service.ts
@@ -647,11 +647,8 @@ export default class ConsumptionDataManager {
         )
       if (result && result.nb_results !== 0) {
         return result.values[0].average_measurement
-      } else {
-        throw new Error(
-          `No average temperature found for ${avgTemperatureDate}`
-        )
       }
+      throw new Error(`No average temperature found for ${avgTemperatureDate}`)
     } catch (error) {
       const errorMessage = `fetchAvgTemperature error : ${error}`
       logStack('error', errorMessage)
diff --git a/tests/__mocks__/avgTemperature.mock.ts b/tests/__mocks__/avgTemperature.mock.ts
new file mode 100644
index 0000000000000000000000000000000000000000..d50cee3d44528f1648043aa66f05490b3c3c899c
--- /dev/null
+++ b/tests/__mocks__/avgTemperature.mock.ts
@@ -0,0 +1,16 @@
+/* eslint-disable camelcase */
+import { AvgTemperatureResult } from 'models'
+
+export const mockAvgTemperature: AvgTemperatureResult = {
+  fields: ['identifiant', 'average_measurement', 'month'],
+  layer_name: '',
+  nb_results: 1,
+  table_href: '',
+  values: [
+    {
+      average_measurement: 17.6,
+      identifiant: '69123002',
+      month: '2023-05',
+    },
+  ],
+}