I love summer in Oregon. Sure, we're known for our rain. The dreary days stretch out endlessly, but that is only in the winter. When summer comes around, the clouds run away, the sky turns blue, and the days warm. Sunny day after sunny day stretch out, lasting the entirety of July and August. Over two full months with only a trace of rain here and there. And while it may get warm, it hardly ever gets hot like so many other places in the country. Triple digits are rare, maybe a few times a year, and the humidity almost always stays blissfully low. A "muggy" day here would be laughable by the standards set by the rest of the country.
I never realized my favorite part about summer here though until I spent summer days in Maine, South Carolina, and Florida... my favorite part, is that every night brings relief from the warmth of the day. The crystal clear skies bring in cool air. Houses are thrown open, welcoming the coolness. It's almost average to have a low in the 50's, even in the heat of August. Air conditioners are rare in homes here, because of our cool nights. If you open up the house at night, and close it up in the morning, it will stay livable most days.
The landscape also stays fairly green, even though it doesn't really rain. Our months of rain before it creates a high water table, that is fed all summer by the melting snow from the mountains.