Thursday 20 July 2017
(Week 29)

Seasons

Meteorological Seasons

Northern Hemisphere

Spring: 1 March to 31 May
Summer: 1 June to 31 August
Autumn: 1 September to 30 November
Winter: 1 December to 28 February

Southern Hemisphere

Spring: 1 September to 30 November
Summer: 1 December to 28 February
Autumn: 1 March to 31 May
Winter: 1 June to 31 August

Astronomical Seasons

Northern Hemisphere

Spring: 21 March to 20 June
Summer: 21 June to 20 September
Autumn: 21 September to 20 December
Winter: 21 December to 20 March

Southern Hemisphere

Spring: 21 September to 20 December
Summer: 21 December to 20 March
Autumn: 21 March to 20 June
Winter: 21 June to 20 September

World Map Northern Hemisphere
World Map Southern Hemisphere