All's not as it appears, this tale has many twists -
but if I wasn't here documenting the story
would that mean that the plot did not exist?

— Peter Hammill

Solstice Moon Illusion

The full Moon of June 18th is a "solstice moon", coming only two days before the beginning of northern summer.

See more here

http://science.nasa.gov/headlines/y2008/16jun_moonillusion.htm