Update data/climate_data.py

data/climate_data.py

@@ -358,7 +358,10 @@ class ClimateData:
                     winter_design_temp = st.number_input(
                         "Winter Design Temp (99.6%) (°C)",
                         min_value=-50.0,
-                        max
+                        max_value=10.0,
+                        value=0.0,
+                        step=0.5,
+                        help="Enter the winter design temperature in °C"
                     )
                     summer_design_temp_db = st.number_input(
                         "Summer Design Temp DB (0.4%) (°C)",