What's the duration of seasons in Reign of Giants DLC?

I'm playing it now and the summer abruptly ended by turning into winter on about 27th day. But now that it's day 37, it's raining, which looks kinda like spring, but when the rain stops, it becomes freezing cold again.

What seasons last for how long and what are the environmental effects to be aware of (such as rain, frog hail, megaheat)?

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What's the duration of seasons in Reign of Giants DLC? - Aerial Photography of Snow Covered Trees

What's the duration of seasons in Reign of Giants DLC? - Woods Covered With Snow

How long is Summer in DST?

Summer is prevalent in all versions of Don't Starve (DS, RoG & DST) and lasts 20 Days in the single-player base version of Don't Starve, but lasts only 16 days in Reign of Giants (single-player) and Don't Starve Together.

How long does Spring last in DST?

With the Default Preferences, it lasts 20 days. Therefore, the first Spring lasts either from day 1 to 20, or from day 37 to 56. During the beginning and especially the middle of Spring, Dusks are very long (affecting player's sanity) but they quickly go shorter towards the last third of the season.

Is Reign of Giants a DLC?

Don't Starve: Reign of Giants is downloadable content for Don't Starve. The Reign of Giants DLC was announced on January 15, 2014 and released on April 30, 2014 on PC (Windows/Linux/Mac) and on July 22, 2014 on PlayStation 4.

How many days are in a DST year?

A full year in the game is 70 days long. Each season now has its own "Giant", or boss mob, that spawns sometime during the respective season.

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