Birthday signs · Scorpio season
What zodiac sign is October 31?
Under the tropical zodiac, October 31 is set in Scorpio. Each noon UTC on October 31 in the 101 years from 1930 through 2030 finds the Sun in Scorpio, at 7.1° to 8.6° Scorpio. Day 8 or 9 of Scorpio season is October 31, located in the early part and associated with the element water.
Calculated across 1930–2030 · checked .
October 31 is Scorpio
| Scorpio at noon UTC | 101 of 101 years, 1930–2030 |
|---|---|
| Nearest change of sign | at least 7 days away |
| Birth time needed for the sign | no |
October 31 at a glance
| Sign | ♏︎ Scorpio, the Scorpion |
|---|---|
| Element and mode | water, fixed |
| Polarity | negative (feminine) |
| Ruler | Mars (traditional); Pluto (modern, 20th-century assignment) |
| Sun on this date | 7.1° to 8.6° Scorpio at noon UTC, 1930–2030 |
| Day of the season | day 8 or 9 of Scorpio season |
| Decan | first (0°–10°), face of Mars |
| Sidereal sign (Lahiri) | Libra |
| Day number | 4 (modern numerology) |
Rulers: Ptolemy; modern list.6
The decan: early Scorpio
| Noon Sun | 7.1° to 8.6° Scorpio |
|---|---|
| Decan | first (0°–10°) |
| Face ruler, Chaldean order | Mars |
Faces after Lilly, in Chaldean order.3
October 31 by the numbers
| Day number | 4 (3 + 1 = 4) |
|---|---|
| Month-day number | 5 (1 + 4) |
| System | modern numerology, digit sums |
Digit sums as numerology guides give them.4
Where the date falls in the season
| Day of Scorpio season | 8 or 9 |
|---|---|
| Scorpio season opened | October 23 (37 years) or October 24 (64) |
| Scorpio season closed | November 21 (48 years) or November 22 (53) |
| Element and mode | water, fixed |
| Traditional ruler | Mars |
Seasons by the noon-UTC rule; rulers after Ptolemy.2
Born at this point in Scorpio season
Born on October 31, early in Scorpio, this person arrives while the season is still finding its footing. Their intensity shows up as a habit of watching people closely before they speak. They notice who is holding back and who wants to be asked twice. Friends bring them difficult conversations, and they handle those with patience. The harder part is letting others see how much a single remark has stung them.
Interpretation, not prediction.
The sidereal sign
| Sidereal sign, Lahiri ayanamsa | Libra, all 101 years |
|---|---|
| Noon Sun, sidereal Libra | 13.6°–14.9° |
| Convention | Indian (Vedic) astrology |
Ayanamsa convention.5
Born on October 31
- Hokusai (1760–1849), Japanese artist
- John Keats (1795–1821), English Romantic poet
- Chiang Kai-shek (1887–1975), Chinese politician, military leader, and President of the ROC
- Norodom Sihanouk (1922–2012), Cambodian monarch and politician
- Herman Van Rompuy (1947), Belgian politician; former Prime Minister of Belgium and first permanent President of the European Council
- Zaha Hadid (1950–2016), Iraqi British architect, designer and painter
- Peter Jackson (1961), New Zealand film director, screenwriter, producer and actor
- Marco van Basten (1964), Dutch association football player
Birth dates checked on Wikidata.7
October 31 in history
Observed on this date:
- Día de la Canción Criolla (Peru)
- Allantide (Cornwall)
- Halloween (Ireland, Canada, United Kingdom, United States and other places)
- Hop-tu-Naa (Isle of Man)
- Samhain in the Northern Hemisphere, Beltane in the Southern Hemisphere; begins on sunset of October 31 (Gaels, Welsh people and Neopagan Wheel of the Year)
- The first day of the Day of the Dead, celebrated until November 2 (Mexico)
- Girl Scouts Founders Day (United States)
- King Father's Birthday (Cambodia)
- National Unity Day (India)
- Reformation Day (Slovenia, parts of Germany, Chile, various Protestant churches with a particular emphasis in Lutheran and Reformed ones)
Events on October 31:
- 802: Empress Irene is deposed and banished to Lesbos. Conspirators place Nikephoros, the minister of finance, on the Byzantine throne.
- 1864: Nevada is admitted as the 36th U.S. state.
- 1923: The first of 160 consecutive days of 100° Fahrenheit at Marble Bar, Western Australia.
- 2000: Soyuz TM-31 launches, carrying the first resident crew to the International Space Station. The ISS has been crewed continuously since then.
- 2020: Berlin Brandenburg Airport opens its doors after nearly 10 years of delays due to construction issues and project corruption.
How the answer was worked out
The tropical longitude of the Sun on October 31 was calculated at noon UTC for every year from 1930 through 2030 by Astronomy Engine, with each year's sign read from it.1 How the Machine works
Questions people also ask
What zodiac sign is October 31?
Among 101 sampled years from 1930 to 2030, October 31 is Scorpio in every case, counting the Sun at noon UTC.
Is October 31 on a zodiac cusp?
No. Between 1930 and 2030, the noon Sun stood in Scorpio on every October 31, and no October 31 lies within 7 days of a sign change.
What decan is October 31?
October 31 is found in the first decan of Scorpio (0°–10°) in every sampled year, and the corresponding Chaldean face ruler is Mars.
What is the birthday number for October 31?
Modern numerology gives October 31 a day number of 4 and a month-day number of 5, found by summing the digits.
Sources
- Astronomy Engine JavaScript reference — Don Cross, Astronomy Engine. Verified .
- Ptolemy, Tetrabiblos, Book I — LacusCurtius, University of Chicago. Verified .
- Decan (astrology): the faces of the planets (after Lilly) — Wikipedia. Verified .
- Life Path Number — Numerology.com (practitioner site). Verified .
- Ayanamsa (Lahiri and other sidereal conventions) — Wikipedia. Verified .
- Scorpio (astrology) — Wikipedia. Verified .
- Wikipedia: October 31 — Wikipedia (Wikimedia On this day feed); birth dates checked on Wikidata. Verified .