Moon phases for 1931
There are 12 New Moons and 13 Full Moons in 1931. The first New Moon is on 18 January 1931 at 18:36 UT and the first Full Moon is on 4 January 1931 at 13:15 UT. Every time is Universal Time.
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- New Moons12 in 1931
- Full Moons13 in 1931
- First New Moon18 January 1931
- First Full Moon4 January 1931
- Last Full Moon24 December 1931
- Blue Moon31 May 1931
January 1931 Moon phases
- Sunday 4 January 193113:15 UTFull Moon at 13°13′ Cancer
- Sunday 11 January 193105:10 UTLast Quarter at 20°01′ Libra
- Sunday 18 January 193118:36 UTNew Moon at 27°43′ Capricorn
- Tuesday 27 January 193100:06 UTFirst Quarter at 6°06′ Taurus
February 1931 Moon phases
- Tuesday 3 February 193100:26 UTFull Moon at 13°13′ Leo
- Monday 9 February 193116:10 UTLast Quarter at 19°57′ Scorpio
- Tuesday 17 February 193113:11 UTNew Moon at 27°55′ Aquarius
- Wednesday 25 February 193116:42 UTFirst Quarter at 6°07′ Gemini
March 1931 Moon phases
- Wednesday 4 March 193110:36 UTFull Moon at 12°53′ Virgo
- Wednesday 11 March 193105:16 UTLast Quarter at 19°40′ Sagittarius
- Thursday 19 March 193107:51 UTNew Moon at 27°45′ Pisces
- Friday 27 March 193105:04 UTFirst Quarter at 5°34′ Cancer
April 1931 Moon phases
- Thursday 2 April 193120:06 UTFull Moon at 12°07′ Libra
- Thursday 9 April 193120:16 UTLast Quarter at 19°01′ Capricorn
- Saturday 18 April 193101:00 UTNew Moon at 27°02′ Aries
- Saturday 25 April 193113:40 UTFirst Quarter at 4°23′ Leo
May 1931 Moon phases
- Saturday 2 May 193105:15 UTFull Moon at 10°51′ Scorpio
- Saturday 9 May 193112:49 UTLast Quarter at 17°56′ Aquarius
- Sunday 17 May 193115:28 UTNew Moon at 25°45′ Taurus
- Sunday 24 May 193119:39 UTFirst Quarter at 2°39′ Virgo
- Sunday 31 May 193114:33 UTFull Moon at 9°10′ Sagittarius
June 1931 Moon phases
- Monday 8 June 193106:19 UTLast Quarter at 16°30′ Pisces
- Tuesday 16 June 193103:02 UTNew Moon at 24°01′ Gemini
- Tuesday 23 June 193100:23 UTFirst Quarter at 0°35′ Libra
- Tuesday 30 June 193100:47 UTFull Moon at 7°17′ Capricorn
July 1931 Moon phases
- Tuesday 7 July 193123:52 UTLast Quarter at 14°52′ Aries
- Wednesday 15 July 193112:20 UTNew Moon at 22°02′ Cancer
- Wednesday 22 July 193105:16 UTFirst Quarter at 28°26′ Libra
- Wednesday 29 July 193112:48 UTFull Moon at 5°26′ Aquarius
August 1931 Moon phases
- Thursday 6 August 193116:28 UTLast Quarter at 13°14′ Taurus
- Thursday 13 August 193120:27 UTNew Moon at 20°06′ Leo
- Thursday 20 August 193111:36 UTFirst Quarter at 26°28′ Scorpio
- Friday 28 August 193103:09 UTFull Moon at 3°51′ Pisces
September 1931 Moon phases
- Saturday 5 September 193107:21 UTLast Quarter at 11°46′ Gemini
- Saturday 12 September 193104:26 UTNew Moon at 18°26′ Virgo
- Friday 18 September 193120:37 UTFirst Quarter at 24°57′ Sagittarius
- Saturday 26 September 193119:45 UTFull Moon at 2°45′ Aries
October 1931 Moon phases
- Sunday 4 October 193120:15 UTLast Quarter at 10°38′ Cancer
- Sunday 11 October 193113:06 UTNew Moon at 17°15′ Libra
- Sunday 18 October 193109:20 UTFirst Quarter at 24°02′ Capricorn
- Monday 26 October 193113:34 UTFull Moon at 2°10′ Taurus
November 1931 Moon phases
- Tuesday 3 November 193107:18 UTLast Quarter at 9°54′ Leo
- Monday 9 November 193122:56 UTNew Moon at 16°35′ Scorpio
- Tuesday 17 November 193102:14 UTFirst Quarter at 23°46′ Aquarius
- Wednesday 25 November 193107:10 UTFull Moon at 2°03′ Gemini
December 1931 Moon phases
- Wednesday 2 December 193116:51 UTLast Quarter at 9°33′ Virgo
- Wednesday 9 December 193110:16 UTNew Moon at 16°22′ Sagittarius
- Wednesday 16 December 193122:43 UTFirst Quarter at 24°01′ Pisces
- Thursday 24 December 193123:24 UTFull Moon at 2°12′ Cancer
How the phases are defined
A New Moon is the moment the Moon and the Sun share the same ecliptic longitude. A Full Moon is when they are 180° apart. First Quarter and Last Quarter are 90° and 270° from the Sun. Each time above is the exact minute the angle is reached, and the sign and degree are the Moon's own position at that minute.
What these dates are worth
Every time on this page is computed by the engine that casts the charts, not copied from a table. All times are Universal Time (UT), so a date can fall a day either side of your own clock: add your time zone's offset to get local time. The Moon is checked against NASA and JPL values and the planets against published station and ingress dates; the table of what Umbriel checks, and how close it comes is public. Umbriel is for reflection and self-understanding, not prediction.
Retrograde dates 1931 · Ephemeris 1931 · Moon phase calendar · Sky events ahead