pitter-patters

1. When I got up this morning, I heard some pitter-patters out of the windows, I can figure out it is little snowballs from the sound, so I thought it will be a dreadful day again.
    今天早上起床在时候，我听到外面有雨声，从声音中我断定那一定是雪粒，于是我肯定今天将会又是糟糕的一天。