Could warmer weather be a more plausible explanation?

How to say “Could warmer weather be a more plausible explanation?” in Japanese

In Japanese

気温(きおん)が上(あ)がったからだと考(かんが)えるほうが、もっともらしい説明(せつめい)になりませんか。

Kion ga agatta kara da to kangaeru hō ga, mottomorashii setsumei ni narimasen ka.

Could warmer weather be a more plausible explanation? in other languages