YOU SAID:
Snow was falling on Riverside.
INTO JAPANESE
リバーサイドには雪が降っていました。
BACK INTO ENGLISH
It was snowing on Riverside.
INTO JAPANESE
リバーサイドでは雪が降っていました。
BACK INTO ENGLISH
It was snowing in Riverside.
INTO JAPANESE
リバーサイドでは雪が降っていました。
BACK INTO ENGLISH
It was snowing in Riverside.
That didn't even make that much sense in English.