Depends on lot of things, and CO2 is a LOT less sensible to temperature than propane. My former KJW M9 performed the same way at 20/22 degrees and 2 above zero.
Tous les jours nous nous endormons plus instruits mais pas forcément moins bêtes...
I can do a CTRL+ATL+DEL on your gun !
Gun doc in Montreal on AEG, GBB, GBBR and Bolt rifle (gaz and spring)
Heavy custom builder (including painting)