Season Calculator
Find which season any date falls in: day of year, days in the season, and astronomical boundaries for the Northern Hemisphere. Free, fast, and accurate.
About This Calculator
Enter any date to find which season it falls in for the Northern Hemisphere. Also shows the day of the year and total days in that season.
Frequently Asked Questions
When do the seasons start?
Spring starts March 20, Summer June 21, Fall September 23, and Winter December 21 (approximate dates for the Northern Hemisphere).