Statistical distribution type

Screen Link:

My Code:

plt.figure(figsize=(10,3))

plt.subplot(1,2,1)
day.traffic_volume.hist()
plt.grid(False)
plt.title('day')
plt.xlabel('traffic volume')
plt.ylabel('frequency')
plt.ylim(0,8000)
plt.xlim(0,7500)

plt.subplot(1, 2, 2)

night.traffic_volume.hist()
plt.grid(False)
plt.title('night')
plt.xlabel('traffic volume') 
plt.ylabel('frequency')
plt.ylim(0,8000)
plt.xlim(0,7500)

plt.show()

What I expected to happen:

Replace this line with the code output you expected to get

What actually happened:

Replace this line with the actual output/error

I would like to know what type of statistical distribution I have for the night here. It is a mix of exponential with something else.