Summer rain smell?

Why does summer rain smell nice and all the other seasons don't smell like anything at all?
The smell called petrichor, which is a combination of plant oils and the chemical compound geosmin, is released from the soil when it rains [1]. When the first fat drops of summer rain fall to the hot, dry ground, a distinct odor is noticed [2]. Scientists first documented the process of petrichor formation in 1964 and researchers from the Massachusetts Institute of Technology studied the mechanics of the process in the 2010s [3].  Petrichor's main ingredients are made by plants and bacteria that live in the ground [3]. A byproduct of their activity is an organic compound called geosmin which contributes to the petrichor scent [3]. Alcohol molecules tend to have a strong scent, but the complex chemical structure of geosmin makes it especially noticeable to people even at extremely low levels [3].
The smell of summer rain, known as "petrichor," is the result of a mixture of plant oils and the chemical compound geosmin, which are both released from the soil when it rains [1]. The aroma then gets into the air and is spread by the wind [1]. Scientists from MIT, using high-speed cameras, observed how raindrops trap tiny air bubbles as they hit the ground [2]. They believe the bubbles then shoot upwards through the raindrop and erupt into a fizz, producing extremely fine liquid droplets or solid particles that remain suspended in the air as fog or smoke, known as aerosols [2]. The results are published in the journal Nature Communications [2]. The authors suspect that the tiny particles that are released into the environment not only spread noticeable aromatic elements from the soil but also bacteria and viruses stored there [2]. They found that more particles were produced by light or moderate rainfall compared with heavy downpours, which are then spread by the wind [2].