In my opinion, temperatures could rise to 25- 30 degrees Celsius immediately and stay at this point!
To overcome the last cold days I got a nice prescription for everyone who is pining for warm rays of sunshine: 70s and 60s hippie music! :)
Listen to bands as Jefferson Airplane, Mammas& Pappas, Fleetwood Mac, The Doors, Simon & Garfunkel, Janis Joplin,Crosby, Stills & Nash, The Grateful Dead, The Beatles (Magical Mystery Tour),Canned Heat and Jimi Hendrix at least once a day. Close your eyes while listening and dream away for some minutes. The best thing against depression and bad mood! ;) Peace& Love!
Some impressions of Woodstock attended by "Going up the Country" by Canned Heat!