But, back to the hashrate drop. Due to the heat hitting the US Pacific NW I know there are some places that cannot keep up with cooling so they are shutting off miners during the day. If you based your cooling on 90F as max sustained outside temperature, with 95F as a limited daytime hours temperature and it's been hitting 100+ every day for hours and hours, yes you might be shutting some things off before your cooling system tells you it's going on vacation. 
So there is some loss from there too.
So there is some loss from there too.Allow me to praise myself, I did not have to shut down a single gear while temps here been ranging between 104F to 116.6F aka 40c to 47c even at night, many schools and businesses did shut down this week because of this, my gears on the other hand which are mostly S9s are mining non-stop, I suppose I got some pretty bad-ass cooling going on.
That is smoking hot.
We did 97-98 f. today.
the asic room did pretty good.
Some downclocks. braiins has been very good at helping the gear stay up.