下面是完整代码:
```python
ax.plot(seattle_weather["MONTH"], seattle_weather["MLY-PRCP-NORMAL"])
ax.plot(austin_weather["MONTH"], austin_weather["MLY-PRCP-NORMAL"])
# Customize the x-axis label
ax.set_xlabel("Time (months)")
# Customize the y-axis label
ax.set_ylabel("Precipitation (inches)")
# Add the title
ax.set_title("Weather patterns in Austin and Seattle")
# Display the figure
plt.show()
```