HI THERE HONDA EXPERTS!
MY CAR MAKE AN SQUIKING SOUND IN ACCELARATION ONLY A BREAF MOMENT ONLY IN FREEZING TEMPERATURE OUTSIDE
ANYONE HAVE CLUE WHAT COULD BE MAKING THAT WEARD SOUND

 

I think i know the answer to this one.. so i assume your civic si is a stick shift. I also assume this noise happens when your at a full stop and start moving. I assume it only happens in 1st gear. I think you will also only hear this sound when your pushing on your cluch. If so then you are just like me and need to learn to lift your foot off the cluch sooner in 1st gear and thats your problem. Let me know if i was right!