That was this morning. By tomorrow the temperature will be back up again and all the snow will be gone. Forecast is sunny and 65 tomorrow, and 75 for Friday/Saturday.
I guess we would say it's not abnormal to have a day or two of this every fall. On the eastern slope of the mountains this can happen almost any month of the year. There has been recorded snow every in month but July (not every month every year) in this area.