I've heard it is really hot in the summer, specifically at DL. I'll be there the second week of July. Is it hot? Most will probably say "yes," but I reside in Florida. It's not only hot, but it's also humid. I'm looking for a comparison of some type. I've been to WDW in the summer and vow to never do it again.....by the time you reach your first ride you're soaked in sweat...yuck. Will I have the same experience at DL and will I need a sweater in the evening? Any info would be greatly appreciated. 


no really it is and it will feel cooler then the same temps at WDW! The heat builds through out the day. So you will start off coolish. Not like FL where you are out the gate in the 80's. It will cool down at night high 60's usually.
. It won't be too bad in the morning and it will get cooler come the late afternoon. Chill off with a nice dole whip in the tiki room! 
But you're right, it doesn't rain in SoCal in summer the way it does in FL. I love the summer rains at WDW though.
Anaheim averages 10 to 14 inches of rain per year. Last year we had about 3 to 4 inches for the whole year. This year we got to about 9 inches of rain and that seemed like a lot. Compared to 50 inches in Orlando per year Southern Califonia qualifies as no rain. It is a safe bet it will not rain at all in Anaheim from June through September. It probably will not rain from October through early December. Christmas Day and New Year's Day are usually great days to put on your bathing suit and spend some time in the spa. If it does rain between October and December it will be a light rain and will not last long. When it does rain it will be a few days in January or February. Maybe a few April and May showers and that is it. So it may rain a little on 10 or so days a year in SoCal, but the other 355 days are nice. That seems close enough to no rain.