Bad Weather = Cloning Problems?

I have a perpetual grow that allows me to harvest 2 plants a week. 80% of my finishing plants started life in my cloning domes (10% re-grows and 10% seedlings). Maybe it's just my imagination - but seems to me that my problem getting clones to root lately has coincided with the advent of real bad weather here in the upper Midwest. Present humidity outside is 69% and has been high like that for weeks. Anyone have an educated guess as to wether or not the weather and my cloning problems are related?

I haven't changed my usual protocol for cloning despite the weather. Maybe I need to?

BigSteve.

If the temps of your grow room are lower it could change things a little. Plants in colder rooms can get sometimes grow more rigid stems. If the stem being used for a cutting is tougher and a little more woody as opposed to soft and green it can take it longer to root.

I wold think high humidity would help if anything. Now if you are running more heat, it may be lower indoors . But in the UMW, I'd think you'd be running heat whether a "bad" year or not.

I appreciate the insights guys. Something to mull over.

BigSteve.

I think coldness can have a huge impact on growing roots out of cuts and seedlings. Get a 10$ seedling heat mat and things should improve.