time of a leaves end
Autumn, often known as fall in the US and Canada, is one of the four temperate seasons. Autumn marks the transition from summer into winter, in September or March when the arrival of night becomes noticeably earlier. One of its main features is the shedding of leaves from some trees as they pave way for further growth.
The equinoxes might be expected to be in the middle of their respective seasons, but temperature lag means that seasons appear later than dates calculated from a purely astronomical perspective. The actual lag varies with region. Some cultures regard the autumnal equinox as "mid-autumn", others with a longer lag treat it as the start of autumn. Meteorologists use a definition based on months, with autumn being September, October and November in the northern hemisphere, and March, April and May in the southern hemisphere.
In North America, autumn is usually considered to start with the September equinox. In traditional East Asian solar term, autumn starts on or around 8 August and ends on about 7 November. In Ireland, the autumn months according to the national meteorological service, Met Éireann, are September, October and November. However, according to the Irish Calendar, which is based on ancient Gaelic traditions, autumn lasts throughout the months of August, September, and October, or possibly a few days later, depending on tradition. In Australia, autumn officially begins on 1 March and ends 31 May.
Etymology
The word autumn comes from the Old French word autompne, and was later normalised to the original Latin word autumnus. There are rare examples of its use as early as the 12th century, but it became common by the 16th century.
Before the 16th century, harvest was the term usually used to refer to the season, as it is common in other West Germanic languages to this day . However, as more people gradually moved from working the land to living in towns, the word harvest lost its reference to the time of year and came to refer only
The equinoxes might be expected to be in the middle of their respective seasons, but temperature lag means that seasons appear later than dates calculated from a purely astronomical perspective. The actual lag varies with region. Some cultures regard the autumnal equinox as "mid-autumn", others with a longer lag treat it as the start of autumn. Meteorologists use a definition based on months, with autumn being September, October and November in the northern hemisphere, and March, April and May in the southern hemisphere.
In North America, autumn is usually considered to start with the September equinox. In traditional East Asian solar term, autumn starts on or around 8 August and ends on about 7 November. In Ireland, the autumn months according to the national meteorological service, Met Éireann, are September, October and November. However, according to the Irish Calendar, which is based on ancient Gaelic traditions, autumn lasts throughout the months of August, September, and October, or possibly a few days later, depending on tradition. In Australia, autumn officially begins on 1 March and ends 31 May.
Etymology
The word autumn comes from the Old French word autompne, and was later normalised to the original Latin word autumnus. There are rare examples of its use as early as the 12th century, but it became common by the 16th century.
Before the 16th century, harvest was the term usually used to refer to the season, as it is common in other West Germanic languages to this day . However, as more people gradually moved from working the land to living in towns, the word harvest lost its reference to the time of year and came to refer only
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