1st in Winter:
Old Moon
2nd in Winter:
Snow Moon
Last in Winter:
Sap Moon
1st in Spring:
Grass Moon
2nd in Spring:
Milk Moon
Last in Spring:
Rose Moon
1st in Summer:
Thunder Moon
2nd in Summer:
Green Corn Moon
Last in Summer:
Fruit Moon
1st in Autumn:
Harvest Moon
2nd in Autumn:
Frost Moon
Last in Autumn:
Long Night Moon
3rd of four in any season:
Blue Moon
Oops: forgot to credit it! http://www.fabandpp.org/cotm/moons.htm