Fall Records for Rochester

Fall Records for Rochester
(September - October - November)

Warmest		Coldest
1) 53.6	1931	1) 41.8	1976
2) 52.6	1963	2) 42.3	1991
3) 50.7	2007	3) 42.5	1985
	2005		1911
5) 50.5	1953	5) 43.1	1993
6) 50.3	2011		1959
	1914	7) 43.2	1887
8) 50.1	1998	8) 43.4	1995
9) 50.0	2001		1951
	1994	10) 43.7	1996
	1948

normal temperature is 47.7 degrees

Wettest		Driest
1) 14.91	1986	1) 1.49	1976
2) 13.60	2010	2) 2.34	1944
2) 13.48	1911	3) 2.48	1999
3) 12.21	1970		1953
4) 11.81	1973	5) 2.71	1939
5) 11.73	1934	6) 2.76	1910
6) 11.64	1972	7) 2.87	1952
7) 11.50	1983	8) 3.09	2003
8) 11.33	1931	9) 3.14	2011
9) 11.09	1993	10) 3.15	1888

normal precipitation is 7.60 inches

Fall weather typically begins by the second week in September and lasts until the first part of November. Fall is therefore another short season, lasting just a little longer than two months. Average high temperatures drop from the low 70s in the beginning of September to the upper 50s by the middle of October. The cooling then accelerates during late fall with normal highs only around 40 degrees by the 12th of November. Average lows fall from the low 50s in beginning of September to the middle 20s by mid November. The average first frost in Rochester occurs during the end of September and start of October.

Average precipitation drops sharply from the summer to the fall, with October and November only averaging around or slightly above 2 inches. September is somewhat higher, averaging around 3 inches. This decrease is mainly due to the fact that tropical type air masses usually stay south of Minnesota in October and the likelihood of thunderstorms drops to around two days per month in Rochester.

While September and October are typically among the sunnier months in Rochester with an average of 9 clear days, November is the cloudiest month of the year. November only averages 5 clear days, with 19 cloudy days. So the chance to see some sunshine during November is only around 37%, or close to one-third of the time. This increase in clouds is due to the onset of the winter season stratus clouds.

The first snowflakes of the season usually occur in October, as does the first measurable snow. However, the better chances for accumulating snows come in November, which averages over 5 inches for the month.

Wind speeds typically increase during the fall season with October and November having average speeds between 12 and 13 mph. The prevailing wind direction is still from the south, but northwest winds occur more frequently in November.