Plot daily temperatures

Here is the attempt to plot the daily max and min temperature. The plot looks very crowded: 

 Here is the code that generate it: 

 import pandas as pd

import matplotlib.pyplot as plt

import matplotlib.dates as mdates

df_max = pd.read_csv('tmax.csv')

df_min = pd.read_csv('tmin.csv')

df_max['Date'] = pd.to_datetime(df_max['Date'], dayfirst=True).dt.to_period('D')

df_min['Date'] = pd.to_datetime(df_min['Date'], dayfirst=True).dt.to_period('D')

# Reset the index

df_max = df_max.reset_index()

df_min = df_min.reset_index()

# Convert Period to datetime

df_max['Date'] = df_max['Date'].dt.to_timestamp()

df_min['Date'] = df_min['Date'].dt.to_timestamp()

# Plotting

plt.figure(figsize=(16,6))

plt.plot(df_max['Date'], df_max['t_max'], color='red', label='MaxTemp')

plt.plot(df_min['Date'], df_min['t_min'], color='blue', label='MinTemp')

plt.legend()

plt.xlabel('Date')

plt.ylabel('Temperature')

plt.gca().xaxis.set_major_formatter(mdates.DateFormatter('%Y-%m')) # Format dates as 'YYYY-MM'

plt.gcf().autofmt_xdate() # Slant dates for better readability

plt.show()