In Absence of True Seasons We havent had a really sunny September since 2003 (Above 140% of average), most have been average or marginally above. As for May, the only really sunny ones were in the last few years (2018, 2020 and 2023 in Western areas), and before 2018, most were average or a little below. April is the only one really bringing annual totals up, and January is often lifting our winters totals too (2024 the obvious example, and 2022)