今春[konshun] this spring
昨春[sakushun] last spring
三春[sanshun] three spring months
思春期[shishunki] puberty
春たけなわ[harutakenawa] spring is in full swing

春めく[harumeku] to become spring-like
春一番[haruichiban] first storm of spring
春夏秋冬[shunkashuutou] spring, summer, autumn (fall) and winter
春画[shunga] shunga

秋霖[shuurin] autumn rain
霖雨[rinu] long spell of rain
秋霖前線[shuurinzensen] autumn rain front

春霖[shunrin] spring rain
梅霖[bairin] rainy season
陰霖[inrin] long period of rain