Determine the season from a date

Classifies dates into astronomical seasons: Winter, Spring, Summer, or Fall.

Usage

get_season(date)

Arguments

date

Character, Date, or date-time vector coercible with base::as.Date().

Value

Character vector of season names with one value per input date.

Details

Seasons use fixed northern-hemisphere transition dates: Spring begins March 20, Summer begins June 21, Fall begins September 23, and Winter begins December 21.

Examples

get_season("2024-12-25")
#> [1] "Winter"

get_season(as.Date(c(
  "2024-01-15",
  "2024-04-15",
  "2024-07-15",
  "2024-10-15"
)))
#> [1] "Winter" "Spring" "Summer" "Fall"