Blue MoonAugust 30th, 2012 at 8:54 am by Michelle Muscatello under General Talk, Tony's Pinpoint Weather Blog
It was a beautiful drive into work overnight with cool, crisp air and moon-lit skies. It will be another great evening/night to sit under the light of the “Blue Moon”. By today’s definition a blue moon is the second full moon of the month. And while it’s not quite as rare as the phrase, “Once in a blue moon” might have you believe… tonight will be the last chance to see a blue moon until 2015.
Usually months have only one full moon, but occasionally there’s a second one. The moon waxes and wanes from one full moon to the next over 29.5 days. Since most months are 30 or 31 days long it is possible to fit two full moons in a single month. This happens every two and a half years, on average. The last blue moon was on December 31, 2009. The next blue moon will be July 31, 2015.