The deepest parts of the Earth's crust can reach temperatures of around 1,832 degrees Fahrenheit (1,000 degrees Celsius).

However, it's important to note:

* This is a general estimate. The actual temperature at the base of the crust varies depending on location and geological factors.

* The crust is not uniform. The oceanic crust is much thinner and hotter than the continental crust.

* The boundary between the crust and the mantle is not a sharp line. It's a transition zone where temperatures gradually increase.

So, while 1,832 degrees Fahrenheit is a good approximation for the deepest parts of the crust, the exact temperature can vary.