I'm 60 years old; at what age can I make monthly withdrawals from a traditional IRA for income? And at what rate are they taxed at?

The magic number to withdraw from an IRA without penalty is 59.5 ... yes, fifty-nine and one half. So if you're 60, you're good to go! Withdrawals from an IRA are regular income, taxed at your marginal rate.

59 1/2. Taxed at ordinary income rates.

Your good to go. Any month you take out is considered income and added to any earned income you have.

You can do it now. They are taxed at many different rates. The rate is calculated based on the total of all of your income for the year and could be many different numbers depending on how much other income you have.

Anytime, at 60 you're old enough that there's no penalty. The tax rate depends on your total income. The withdrawals are taxed as ordinary income.