Yay for interactive maps! But booo for depressing stats.
This map looked at a LOT of cities across the US and decided how many "pleasant" days each one had... basically- temperatures between 55 and 80, without much precipitation.
DC: 48-66 pleasant days [depending on the suburb]
SALT LAKE CITY: 39 pleasant days
VIRGINIA BEACH: 70 pleasant days
And of course LOS ANGELES has over 180 pleasant days. Must be nice.
Check out the whole interactive map below: