What is normal reading range from ADC pins on Electron

Hello all,

I tried to get readings from bare ADC pins (A1 and A2) on Electron. The readings are 1273 and 1437. I found that the raw readings are not in a close range. Is that normal?

Floating pins will always produce random readings

And the docs would be a good source to look before posting a question about info that’s readily available there.