Born On Box

May 31 Birthday

Zodiac sign, birthstone, birth flower and more for everyone born on May 31.

The zodiac sign for May 31 is

Gemini

Gemini runs May 21 – June 20. May 31 is day 11 of 31 in Gemini season, in the 2nd decan.

Zodiac sign

Gemini

Twins · Air · Mutable

Birthstone

Emerald

Birth flower

Lily of the valley

Also hawthorn

Ruling planet

Mercury

Decan ruler: Venus

How common

#326 of 366

10,757 US births a year

Day of the year

Day 151

Day 152 in a leap year

May 31 zodiac sign: Gemini

Gemini is ruled by Mercury, the planet of communication. The Twins are linked with curiosity and conversation, and with having two sides: interested in everything, and quick to move on.

Symbol♊ Twins
DatesMay 21 – June 20
ElementAir
ModalityMutable
Ruling planetMercury
Traitscurious, witty, adaptable, talkative
StrengthsQuick-thinking, sociable, versatile and good with words.
WeaknessesRestless, inconsistent and easily bored.
Opposite signSagittarius
Most compatible withAries, Leo, Libra, Sagittarius, Aquarius

The 2nd decan of Gemini

Each sign is split into three decans of about ten days. May 31 falls in the 2nd decan, which is co-ruled by Venus, the planet of Libra. Astrologers say this adds a touch of Libra (diplomatic, fair) to the Gemini personality.

May 31 birthstone: Emerald

Everyone born in May shares the same birthstone.

StoneColorHardness (Mohs)Said to symbolize
EmeraldGreen7.5–8Rebirth, love and wisdom

May 31 birth flower: Lily of the valley and Hawthorn

More about May birthdays

How common is a May 31 birthday?

May 31 is the 326th most common birthday in the US out of 366. An average of 10,757 babies were born on it each year from 1994 to 2014, 4% fewer than on an average day.

Based on US birth records, 1994–2014. See every date ranked.

What day of the week was May 31?

Here’s the day of the week May 31 fell on each year, and the Chinese zodiac animal for someone born that day.

Birth dateDay of the weekChinese zodiac
May 31, 2030FridayMetal Dog
May 31, 2029ThursdayEarth Rooster
May 31, 2028WednesdayEarth Monkey
May 31, 2027MondayFire Goat
May 31, 2026SundayFire Horse
May 31, 2025SaturdayWood Snake
May 31, 2024FridayWood Dragon
May 31, 2023WednesdayWater Rabbit
May 31, 2022TuesdayWater Tiger
May 31, 2021MondayMetal Ox
May 31, 2020SundayMetal Rat
May 31, 2019FridayEarth Pig
May 31, 2018ThursdayEarth Dog
May 31, 2017WednesdayFire Rooster
May 31, 2016TuesdayFire Monkey
May 31, 2015SundayWood Goat
May 31, 2014SaturdayWood Horse
May 31, 2013FridayWater Snake
May 31, 2012ThursdayWater Dragon
May 31, 2011TuesdayMetal Rabbit
May 31, 2010MondayMetal Tiger
May 31, 2009SundayEarth Ox
May 31, 2008SaturdayEarth Rat
May 31, 2007ThursdayFire Pig
May 31, 2006WednesdayFire Dog
May 31, 2005TuesdayWood Rooster
May 31, 2004MondayWood Monkey
May 31, 2003SaturdayWater Goat
May 31, 2002FridayWater Horse
May 31, 2001ThursdayMetal Snake
May 31, 2000WednesdayMetal Dragon
May 31, 1999MondayEarth Rabbit
May 31, 1998SundayEarth Tiger
May 31, 1997SaturdayFire Ox
May 31, 1996FridayFire Rat
May 31, 1995WednesdayWood Pig
May 31, 1994TuesdayWood Dog
May 31, 1993MondayWater Rooster
May 31, 1992SundayWater Monkey
May 31, 1991FridayMetal Goat
May 31, 1990ThursdayMetal Horse
May 31, 1989WednesdayEarth Snake
May 31, 1988TuesdayEarth Dragon
May 31, 1987SundayFire Rabbit
May 31, 1986SaturdayFire Tiger
May 31, 1985FridayWood Ox
May 31, 1984ThursdayWood Rat
May 31, 1983TuesdayWater Pig
May 31, 1982MondayWater Dog
May 31, 1981SundayMetal Rooster
May 31, 1980SaturdayMetal Monkey
May 31, 1979ThursdayEarth Goat
May 31, 1978WednesdayEarth Horse
May 31, 1977TuesdayFire Snake
May 31, 1976MondayFire Dragon
May 31, 1975SaturdayWood Rabbit
May 31, 1974FridayWood Tiger
May 31, 1973ThursdayWater Ox
May 31, 1972WednesdayWater Rat
May 31, 1971MondayMetal Pig
May 31, 1970SundayMetal Dog
May 31, 1969SaturdayEarth Rooster
May 31, 1968FridayEarth Monkey
May 31, 1967WednesdayFire Goat
May 31, 1966TuesdayFire Horse
May 31, 1965MondayWood Snake
May 31, 1964SundayWood Dragon
May 31, 1963FridayWater Rabbit
May 31, 1962ThursdayWater Tiger
May 31, 1961WednesdayMetal Ox
May 31, 1960TuesdayMetal Rat
May 31, 1959SundayEarth Pig
May 31, 1958SaturdayEarth Dog
May 31, 1957FridayFire Rooster
May 31, 1956ThursdayFire Monkey
May 31, 1955TuesdayWood Goat
May 31, 1954MondayWood Horse
May 31, 1953SundayWater Snake
May 31, 1952SaturdayWater Dragon
May 31, 1951ThursdayMetal Rabbit
May 31, 1950WednesdayMetal Tiger
May 31, 1949TuesdayEarth Ox
May 31, 1948MondayEarth Rat
May 31, 1947SaturdayFire Pig
May 31, 1946FridayFire Dog
May 31, 1945ThursdayWood Rooster
May 31, 1944WednesdayWood Monkey
May 31, 1943MondayWater Goat
May 31, 1942SundayWater Horse
May 31, 1941SaturdayMetal Snake
May 31, 1940FridayMetal Dragon

More about May 31

Season (Northern Hemisphere)Spring
Day of the year151 (152 in a leap year)
Days left in the year214 (214 in a leap year)

Want your exact age or a countdown? Try the age calculator on our sister site Day Count Box.

May 31 birthday questions

What zodiac sign is May 31?
People born on May 31 are Gemini (♊), the Twins. Gemini season runs from May 21 – June 20.
What is the birthstone for May 31?
The birthstone for May 31 is the May birthstone: emerald.
What is the birth flower for May 31?
May’s birth flowers are the lily of the valley and hawthorn.
Is May 31 on a cusp?
No. May 31 is well inside Gemini season, so the sign is the same whatever the year.
How rare is a May 31 birthday?
May 31 is the 326th most common birthday in the US out of 366. An average of 10,757 babies were born on it each year from 1994 to 2014, 4% fewer than on an average day.
What day of the year is May 31?
May 31 is day 151 of the year, or day 152 in a leap year.

Other May birthdays