That 6 week hot streak lasted 4 months. Janish had over an .800 OPS in Augest. Granted he wasn't playing everyday during it, but that makes it even more impressive, and less likely to be a "streak" and instead an actual change in skill level.
And Juan Castro never had a hitting streak with an OPS over .800 that lasted 100 AB. He never had one that lasted more than 8.