Not worried about summer, our record high is somewhere near 80 degrees F, no humidity!  Actually was on the hunt for cold hardy breeds that would lay through winter.  I was worried about my chicks the last few nights as they are still pretty tiny at 7 weeks old and some have better feathers than others and it was down to about 15 degrees F, but they all huddled together and did just fine.
	
		
			
		
		
	
				
			
	
	
