diff --git a/temperature_data_analysis/tests/data/sample_temperatures.csv b/temperature_data_analysis/tests/data/sample_temperatures.csv
new file mode 100644
index 0000000..7ab70b6
--- /dev/null
+++ b/temperature_data_analysis/tests/data/sample_temperatures.csv
@@ -0,0 +1,11 @@
+timestamp,temperature_c
+2024-04-01T00:00:00Z,15.3
+2024-04-01T00:05:00Z,15.7
+2024-04-01T00:10:00Z,15.5
+2024-04-01T00:15:00Z,15.8
+2024-04-01T00:20:00Z,16.0
+2024-04-01T00:25:00Z,16.1
+2024-04-01T00:30:00Z,15.9
+2024-04-01T00:35:00Z,15.6
+2024-04-01T00:40:00Z,15.4
+2024-04-01T00:45:00Z,15.7
\ No newline at end of file