The names of the months in the Iranian calendar are:
(In Persian, there's no capitalization. I only capitalized these words because that's how they would be if they were written in English. Also, note the commas seem backward in the Persian lists; that's because Persian is written/read from right to left, meaning on the first line, فروردین, pronounced Farvardin, is the first word.)
spring:
فروردین، اردیبهشت، خرداد
Farvardin, Ordibehesht, Khordad
summer:
تیر، مرداد، شهریور
Tir, Mordad, Shahrivar
fall:
مهر، آبان، آذر
Mehr, Aban, Azar
winter:
دی، بهمن، اسفند
Day, Bahman, Esfand