rain turns into snow with pure planner

https://preview.redd.it/iztivqly1zjg1.png?width=1919&format=png&auto=webp&s=2fa96b6e05f46626ac0aa9b009ef9bb4e96c7add

i set the tempurture up but its still snowing. whenever it rains naturally in no hesi i dont have this problem but when i do it manually it does this