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 |
|---|---|---|---|
| 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.
For more information contact: climate.dnr.state.mn.us