So, could you guys post ur hashrate and temperatures?

I'm pretty sure you get lower hashrates if your temps are below 45-50C.
At the moment, some of my S7's are getting cooled by direct -17C outdoor air, which keeps the temp on the boards at 33C (Thats what the sensor says anyway.., not sure if this is accurate when getting blasted by -17C air). The hashrate avg is 4.7TH/s @ 625Mhz
Some other S7's are "cooled" with indoor air, which keeps the temp on the boards at 65-70C, these are hashing at 4.99TH/s avg. @ 625Mhz.

The ones cooled by outdoor air used to hash at 4.99TH/s as well.

Conclusion:
Board temps below 45-50C = Bad? ^^