What the Flower Moon 2018 refers to
The Flower Moon 2018 is a widely used name for the full Moon that falls in May 2018. It follows the tradition of seasonal full Moon names used by many cultures to track months before modern calendars. This full Moon is called the Flower Moon because it occurs at the time many flowers are blooming across much of North America and other northern regions. It is also known as the Corn Planting Moon or the Milk Moon in some traditions, reflecting agricultural and natural signs of the season.
Date and times for the 2018 Flower Moon
The Flower Moon 2018 reached peak fullness on the morning of Tuesday, May 29, 2018. The exact moment of full Moon was at 14:20 UTC. For observers in different time zones, the visual appearance of a full Moon can extend across the night of May 28–29, appearing full on the nights before and after the precise time. There were no lunar or solar eclipses during this event in 2018.
Full Moon timing by region (representative)
| Region | Full Moon peak on May 29, 2018 | Evening visibility |
|---|---|---|
| Eastern Daylight Time (UTC-4) | 10:20p.m. | Visible all night |
| Central Daylight Time (UTC-5) | 9:20p.m. | Visible all night |
| Mountain Daylight Time (UTC-6) | 8:20p.m. | Visible all night |
| Pacific Daylight Time (UTC-7) | 7:20p.m. | Visible all night |
| UTC | 2:20p.m. | Visible in afternoon following local moonrise |
These times are indicative; moonrise and moonset vary by specific location and horizon features, but the Moon appears full through the night in most populated areas of North America.
Naming origin and cultural context
The name Flower Moon comes from Algonquian and other Indigenous traditions in the eastern and northern parts of what is now the United States and Canada. It marks the season when spring flowers are abundant and has been used historically for planting and ceremonial purposes. Colonial settlers adopted these names, which later entered modern astronomical culture. Similar patterns appear in other languages, where May’s full Moon may reference blooming, milk, or livestock, but Flower Moon is the predominant English name used in contemporary astronomy guides and calendars.
How the Flower Moon fits into lunar cycles
The Flower Moon is a regular full Moon, not an astronomical anomaly. Full Moons occur roughly every 29.5 days as the Moon orbits Earth, and their calendar dates shift each month. Because the lunar year is about 11 days shorter than the solar year, the dates of full Moons move earlier relative to the seasons over successive years. In 2018, the Flower Moon was not a supermoon, meaning its distance from Earth at fullness was within the typical range rather than at a notably close perigee. It was also not a blue Moon (the second full Moon in a calendar month), but simply the scheduled May full Moon.
Observing the Flower Moon in 2018 and beyond
To observe the Flower Moon, minimal equipment is required. It can be viewed with the naked eye, though binoculars or a small telescope enhance surface detail such as craters and lunar maria. No special eye protection is needed. For the best experience, rise early or stay up late to watch moonrise, which often appears larger near the horizon due to atmospheric effects and foreground landmarks. Check local moonrise and moonset times for your location, and avoid areas with bright artificial lighting to maximize visibility. The term Flower Moon remains a useful seasonal marker for May in guides, folklore, and sky calendars.
Quick reference summary
- Definition: Full Moon in May, named Flower Moon for spring blooms.
- Full moment in 2018: May 29, 2018 at 14:20 UTC (10:20p.m. EDT).
- Visibility: Full Moon visible all night from North America; apparent size and brightness typical for a full Moon.
- Type in 2018: Ordinary full Moon, not a supermoon or blue Moon.
- Cultural context: Reflects Indigenous and colonial naming traditions tied to seasonal plant growth.
FAQ
Reader questions
Was the Flower Moon 2018 a supermoon?
No. The Moon’s distance at fullness in May 2018 was within the ordinary range for full Moons; it was not a supermoon, which requires a close perigee near the full Moon phase.
Why is it called Flower Moon?
The name comes from natural indicators in many regions where spring flowers bloom, aligning with Indigenous and settler naming systems that use full Moons to track the year.
Did the Flower Moon coincide with an eclipse in 2018?
No. There was no eclipse associated with the Flower Moon in 2018. Lunar and solar eclipses did occur in 2018 but on different dates.