When Do The Four Seasons Start And End [work] Guide

Winter begins with the . This is the shortest day of the year and the longest night. The sun is at its lowest point in the sky.

Here is your definitive guide to when the four seasons start, end, and why the dates change.

Note: Dates vary by ±1 day due to leap years and elliptical orbit. In the , the seasons are reversed (e.g., astronomical spring starts September 22). when do the four seasons start and end

The astronomical seasons are defined by the Earth's position relative to the sun. These are the dates most commonly found on wall calendars and are marked by two and two equinoxes .

Meteorologists and climatologists use a different system. They break the seasons into three-month groupings based on the annual temperature cycle rather than the Earth's tilt. This makes it easier to keep consistent climate statistics. In the , the meteorological seasons are: Spring: March 1 – May 31 Summer: June 1 – August 31 Autumn: September 1 – November 30 Winter: December 1 – February 28 (or 29 in a leap year) Winter begins with the

To clear up the confusion, we need to look at the two ways we define seasons: (based on temperature) and Astronomical Seasons (based on the position of the Earth).

Starts March 20 or 21; ends June 20 or 21. Here is your definitive guide to when the

For farmers, climatologists, and poets alike, the start of spring or the arrival of autumn marks a critical transition. However, a glance at a calendar versus an almanac reveals discrepancies. In the Northern Hemisphere, spring is often said to begin around March 20, but meteorologists treat March 1 as the start. This paper clarifies these two systems and provides definitive dates for when each season begins and ends in both hemispheres.

While we often say spring starts on March 21, in recent decades, the date has shifted earlier due to the slight discrepancy between the calendar year (365 days) and the tropical year (how long it takes Earth to orbit the sun).

These are determined by the Earth's position relative to the sun. Solstices mark the longest and shortest days, while equinoxes represent times of equal day and night. In the Northern Hemisphere, the 2026 dates are: Seasons of the Year in the United States - Calendarr