Raining during a brisket-flat cook today. Looks like our Q temp is down about 30 degrees. It's Montana so the rain is quite cold: 55 degrees air temp. Anyone have science behind home much rain affects the cooking temp in a Weber?
FYI we attempted to compensate our normal 2x2 (4 coal) fuse which gives us 225 after noticing the temp reduction with a 5 coal fuse, but that wasn't enough, should have gone 6 coals or maybe 7. Rain causing 50% higher fuel consumption seems like a lot, but I suppose there's a lot of heat that's evaporated.
We got 4 more cooking degrees out of stacking another Weber lid on top.
I guess I need a covered place to Q...
I did once Q at 30 below, that took a long while and lot of fuel. Hot and fast hamburgers took an hour.
FYI we attempted to compensate our normal 2x2 (4 coal) fuse which gives us 225 after noticing the temp reduction with a 5 coal fuse, but that wasn't enough, should have gone 6 coals or maybe 7. Rain causing 50% higher fuel consumption seems like a lot, but I suppose there's a lot of heat that's evaporated.
We got 4 more cooking degrees out of stacking another Weber lid on top.
I guess I need a covered place to Q...
I did once Q at 30 below, that took a long while and lot of fuel. Hot and fast hamburgers took an hour.

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