Why the search results look the way they do
A date that carries a festival attracts writing about the festival. Pages about a 31 October birth tend to lead on the coincidence, then attach a handful of Scorpio adjectives, and stop. None of that is wrong exactly, but none of it is checkable either, and none of it distinguishes this birthday from any other in the sign.
There is a second reason the copy repeats. Most of it is generated from a table of sign date ranges, so every date inside a range gets the same paragraph with the number changed. A table of that kind holds one row per sign, not one row per day, and text generated from it can only ever be as detailed as its source. The layers that would separate them, the longitude and the face, are not in the table, so they never make it into the text.
The number the tables leave out
At noon on 31 October the Sun sits close to eight degrees of Scorpio. Across the years from 1930 to 2035 the value runs between about 7.1 and 8.5, a spread of well under ninety minutes of arc from one extreme year to the other. Put another way, the extreme years differ by rather less than two days of solar motion, and most years cluster nearer the middle of that band than the edges.
It stays that tight because the calendar and the orbit are kept in step by the leap year rule. Each ordinary year lets the Sun arrive about six hours late, and each leap day claws that back. Over a century the two effects cancel rather than accumulate, which is precisely what the Gregorian calendar was designed to do. The century rule, which skips the leap day in most years divisible by a hundred, keeps the same balance holding over far longer spans than the one quoted here.
The face this degree belongs to
Eight degrees puts the Sun inside the first ten degree face of Scorpio, with a little under two degrees of it left. The Chaldean sequence of decan rulers, which runs through the planets in order of apparent speed, lands Mars on this face. The triplicity scheme assigns it to Scorpio itself, and so points at Mars once more under the traditional rulership, or at Pluto under the modern one.
What the older material reads into a doubled attribution is intensity of the ordinary sort: single mindedness, a preference for the whole of something over part of it, difficulty letting a matter drop. That is interpretation and should be treated as such. The degree and the face are facts about a position, and what anyone reads into them is a separate question.
The parts a birthday cannot supply
Three placements are usually treated as the frame of a chart: the Sun, the Moon and the Ascendant. The date fixes the first and only narrows the second. On this day the Moon will be in one of two or three signs depending on the year and the hour, and it can change sign partway through the day.
The Ascendant is entirely undetermined by the date. It depends on the local horizon, so both the clock time and the birthplace are needed, and it turns over roughly every two hours. Anyone born on 31 October in the morning and anyone born that evening share a Sun and very little else. That is a good reason to treat the sun sign as the opening line of a description rather than the whole of it.
Questions people ask about this
Is 31 October always Scorpio?
Yes. The Sun has been in Scorpio for over a week by this point in every year of the modern range, and Sagittarius is still three weeks off, so there is no boundary anywhere near.
Where exactly is the Sun on 31 October?
Near eight degrees of Scorpio. Noon values from 1930 to 2035 fall between roughly 7.1 and 8.5. Your own figure depends on the year, the hour and the place, which the widget above accounts for.
Which Scorpio decan is 31 October?
The first one, zero to ten degrees. The Sun is close to the end of that band but does not reach the line at ten in any year of the modern range.
Does Halloween mean anything astrologically?
Not in the technical sense. It sits near the midpoint between the autumn equinox and the winter solstice, which is a solar fact, but no chart calculation treats the date as special.
Why do other pages about this birthday all sound the same?
Because most are built from a table of sign dates, which contains no information that varies within a sign. The degree and the decan do vary, and those are what separate one date from the next.
What does the date not tell me?
The Moon within two or three possibilities, the Ascendant not at all, and the house positions of everything. All of those need an hour and a birthplace.