Water Year Precipitation Maps

The Water Year is defined as the period between October 1st of one year and September 30th of the next. This interval is often used by hydrologists because hydrological systems are typically at their lowest levels near October 1.

Year	Total Precipitation	Departure from Normal	Historical Ranking
2024	map	map	map
2023	map	map	map
2022	map	map	map
2021	map	map	map
2020	map	map	map
2019	map	map	map
2018	map	map	map
2017	map	map	map
2016	map	map	map
2015	map	map	map
2014	map	map	map
2013	map	map	map
2012	map	map	map
2011	map	map	map
2010	map	map	map
2009	map	map	map
2008	map	map	map
2007	map	map	map
2006	map	map	map
2005	map	map	map
2004	map	map	map
2003	map	map	not available
2002	map	map	not available
2001	map	map	not available
2000	map	map	not available
1999	map	map	not available
1998	map	map	not available
1997	map	map	not available
1996	map	map	not available
1995	map	map	not available
1994	map	not available	not available

GIS coverages available upon request. Contact climate.dnr.state.mn.us

• Total Precipitation maps depict the Water Year precipitation totals in inches.
• Departure from Normal maps depict the difference between the Water Year precipitation totals and the "normal", a 30 year average. The units are in inches.
• Historical ranking maps depict Water Year precipitation totals as they rank when compared to Water Year totals over the modern record. The values presented are percentiles. A ranking near zero indicates the year was drier than any found during the period of record. A ranking near 100 designates that the year was wetter than any found on record. A ranking of 50 is equivalent to the "median", a measure of central tendency.