How long does it usually take you to complete an entire story—from planning to writing to posting (if you post your work)?
It depends. I’ve had instances where I have an idea for a story and am so driven with it that I finish the story quickly—like that day. Other times where I noodle on a story longer. I’ll have the beginning written, but need time away for the characters to “enlighten” me as to their intentions. Or I’ll know upfront how it is going to end, but need to then figure out how we get there. Other pieces hang a bit because they don’t work – first draft done, but massive revision needed.
Now that I’m more consistent with my mini-writer’s notebook, I can jot down ideas in advance and story fixes as they come to me versus relying on remembering them later. Once a story first draft is done, I’ll either take it immediately for feedback from my writers group or put it away to sit for a little bit then return to it and revise.
I’m curious to hear how this process works for others.
Barbara McDowell 
I’m a slow writer. The only stories I’ve written in a day, first draft, are flash. Maybe it’s because I don’t every write a true first draft. I always edit as I write, so even if I’m on fire for a story, it would take me at least a week to finish the draft — and then I’d fiddle with it for a while after that. Some of my stories have been in revision for years. 😕
Ah yes, I have few stories still not quite there. I looked in my “in process” folder and saw a couple where version one was started in 2000. The stories are around version 3 now, but a bit lost.