The Earth rotates once in about 24 hours with respect to the sun and once every 23 hours 56 minutes and 4 seconds with respect to the stars (see below). Earth's rotation is slowing slightly with time; thus, a day was shorter in the past.
Hourly Forecast Detailed. 1  0am:The Rochester, WA forecast for Apr 08 is 44 degrees and Clear. There is 80 percentage chance of rain and 11 mph winds from the South. 2  3am:The Rochester, WA forecast for Apr 08 is 41 degrees and Patchy rain possible. There is 89 percentage chance of rain and 9 mph winds from the South.
Rochester is normally free of snow every year from June to September. How Many Snowstorms Rochester Gets. Most days of snowfall in Rochester result in just a skiff of less than an inch left on the ground. For 30 days a year on average, the amount of new snow totals at least an inch. Snowstorms of over five inches a day normally occur a three or four times a year. But major blizzards that dump ten inches or more in one day are rare events.