1991 Full Moon: Calendar, Moon Names, & Lunar Eclipses

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Full Moon 1991 — In 1991, there were 12 full moons. The year had a seasonal blue moon, four lunar eclipses, and three full supermoons.

Illustration of the moon phase for the dates of the full moons in 1991

All dates and times are in United States Eastern Time for cities such as New York, adjusted for Daylight Savings Time for part of the year. The dates in your local time may shift.

The four primary lunar phases are the new moon, the first quarter, the full moon, and the last quarter. The lunar month last approximately a month or 29.53 days on average, also called a synodic month.

A new moon is the first lunar phase. The moon itself is not visible, though you may be able to “see” it because it blocks the visibility of the stars behind it. A full moon occurs when the Earth is directly between the Sun and the Moon, allowing the moon to appear illuminated entirely.

The first quarter moon occurs between the new moon and the full moon, and the last quarter moon occurs after the full moon and before the next new moon.

Full Moon in 1991

In 1991, there were 12 full moons, with the first on Wednesday, January 30. January, June, and July each had a penumbral lunar eclipse, and there was a partial lunar eclipse in December.

The dates and times of the full moons were:

Full MoonLunar CycleMoon SignSeason
Wednesday, January 30, 1991 1:10 a.m.Wolf Moon 1991LeoWinter
Thursday, February 28, 1991 1:25 p.m.Snow Moon 1991VirgoWinter
Saturday, March 30, 1991 2:17 a.m.Worm Moon 1991LibraSpring
Sunday, April 28, 1991 4:58 p.m.Pink Moon 1991ScorpioSpring
Tuesday, May 28, 1991 7:37 a.m.Flower Moon 1991SagittariusSpring
Wednesday, June 26, 1991 10:58 p.m.Strawberry Moon 1991CapricornSummer
Friday, July 26, 1991 2:24 p.m.Buck Moon 1991AquariusSummer
Sunday, August 25, 1991 5:07 a.m.Sturgeon Moon 1991PiscesSummer
Monday, September 23, 1991 6:40 p.m.Harvest Moon 1991PiscesAutumn
Wednesday, October 23, 1991 7:08 a.m.Hunter’s Moon 1991AriesAutumn
Thursday, November 21, 1991 5:56 p.m.Beaver Moon 1991TaurusAutumn
Saturday, December 21, 1991 5:23 a.m.Cold Moon 1991GeminiAutumn

Full Moon Names

The names of the full moons in 1991 were:

  • January 30: Wolf Moon (Supermoon)
  • February 28: Snow Moon
  • March 30: Worm Moon
  • April 28: Pink Moon
  • May 28: Flower Moon
  • June 26: Strawberry Moon
  • July 26: Buck Moon
  • August 25: Sturgeon Moon
  • September 23: Harvest Moon
  • October 23: Hunter’s Moon
  • November 21: Beaver Moon (Supermoon)
  • December 21: Cold Moon (Supermoon)

The September full moon is called the Full Harvest Moon because it’s closer to the Autumn Equinox than the October Full Moon.

Blue Moon in 1991

In 1991 there was a seasonal blue moon on Thursday, November 21 because Fall had an extra full moon.

There are two definitions of blue moons. The most common, and the one you likely know, is when two full moons occur in the same month. The second full moon is typically called a blue moon.

The second definition relates to having an extra full moon on the calendar during a season. When a season has four full moons, the third full moon of the season is also called a blue moon or a seasonal blue moon.

When was the Harvest Moon in 1991?

The Harvest Moon was on Monday, September 23. The September Full Moon was the ninth full moon of the year and was the full moon in Pisces. The Full Harvest Moon was the first full moon after the Autumnal Equinox, making it the first full moon of Fall.

Depending on the year, the Full Harvest Moon may either be part of the Summer or Autumn season. In 1991 it was part of Autumn.

1991 Equinoxes and Solstices

Below are the dates for the equinoxes and solstices from 1991. The September Full Moon fell on the same day as the Autumnal Equinox.

Summer had four full moons, with a seasonal blue moon that year.

The 1991 dates of the equinoxes and solstices were:

  • Vernal Equinox (Spring): March 20, 1991 at 11:02 PM
  • Summer Solstice: June 21, 1991 at 5:19 PM
  • Autumnal Equinox: September 23, 1991 at 8:48 AM
  • Winter Solstice: December 22, 1991 at 3:54 AM

Sources

The dates and times provided by NASA in United States Eastern Time adjusted for Daylight Saving Time for part of the year in the United States (USA). Since you may be in a different time zone, the exact dates may shift for your calendar.