It was, no doubt, a February. About every 30 years, the moon is full on January 2nd, and again on January 31. The next full moon happens to be on March 1! An entire MONTH (well, it was only February, which IS the shortest month) with no full moons!
Full moon February 10th 1865
This is a fallacy. There was, in fact, a full moon in February, 1865. It occurred on 1865 February 10 at 16:27 UTC. The specific chart is the USNO 1865 Moon Phases document. This is not to say, however, that it is impossible for February to miss the full phase. The moon phases cycle every 29.5 days. Februrary, with 28 days (and 29 on a leap year), does miss a phase periodically.
Every month has a full moon. If you look at a calander that has the moon phases, you will see that every month has one.
A blue moon.
A second full moon in a month is a blue moon.
The moon takes one month to complete a revolution around the earth. A full moon occurs when the moon is on the opposite side of the earth from the sun (opposition). The full moon can only happen at this part of the lunar orbit, and it takes one month to complete the orbit; thus, full moon happens once a month.
The full moon only actually lasts one day, so only one day in a month is there a full moon (although it will look full for a few days).
It is still a full moon no matter if it is the first or second it is still new
The common name for the second full moon in a calendar month is a "blue moon". Pop quiz; what month can NEVER have a blue moon? Answer: February.
A blue moon is a second full moon in a calendar month. A blue moon is also the third of four full moons in one season. There was no second full moon in any month in 2005, but there was a third full moon in a season with four full moons. That happened on the 19th of August 2005.
Yes sometimes there are 2 full moons during one month. These do not happen very often and the second full moon is called a 'blue moon', hence the expression, "once in a blue moon".
A blue moon can refer to the second full moon in a month or the moon actually being blue. We sometimes see a full moon twice in one month due to the moon's cycle of slightly less than one month. A moon which is actually blue may result from pollutants or dust in the atmosphere, making the moon look blue.
A month is one cycle of the moon from full through new and back to full. This takes 29.5305882 days. The word "month" in fact has the same roots as the word "moon." More at http://www.moonconnection.com/moon_phases.phtml