Posted: Sun 1st Mar 2020

When does spring start?

News and Info from Deeside, Flintshire, North Wales
This article is old - Published: Sunday, Mar 1st, 2020

How you define the first day of spring depends on whether you are referring to the astronomical or meteorological spring, says the Met Office. 

Astronomical spring

Astronomical seasons refer to the position of Earth’s orbit in relation to the Sun, considering equinoxes and solstices.

This is due to the 23.5 degrees of tilt of the Earth’s rotational axis concerning its orbit around the Sun.

Since the seasons vary in length, the start date of a new season can fall on different days each year.

This year, astronomical spring began on 20 March 2019 and ended on 21 June 2019.

For upcoming years, the dates for astronomical spring will be;

Year Spring Starts Spring Ends
Spring 2020 Friday, 20 March 2020 Saturday, 20 June 2020
Spring 2021 Saturday, 20 March 2021 Monday, 21 June 2021
Spring 2022 Sunday, 20 March 2022 Tuesday, 21 June 2022
Spring 2023 Monday, 20 March 2023 Wednesday, 21 June 2023
Spring 2024 Wednesday, 20 March 2024 Thursday, 20 June 2024

 

Meteorological spring

Meteorological seasons are instead based on the annual temperature cycle and measure the meteorological state, as well as coinciding with the calendar to determine a clear transition between the seasons.

The meteorological seasons consist of splitting the seasons into four periods made up of three months each.

These seasons are split to coincide with our Gregorian calendar, making it easier for meteorological observing and forecasting to compare seasonal and monthly statistics.

By the meteorological calendar, spring will always start on 1 March; ending on 31 May.

The seasons are defined as spring (March, April, May), summer (June, July, August), autumn (September, October, November) and winter (December, January, February).

Content courtesy of the Met Office 

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