# Annual precipitation in Slope County

Annual precipitation in Slope County was 19.44 inches in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `precipitation_annual`
- Place id: `us-county-38087`
- Unit: inches
- Definition: Total precipitation from January to December, in inches: rain plus the water content of snow and other frozen precipitation. NOAA computes it from its climate divisional dataset (nClimDiv): station readings interpolated onto a 5 km grid and averaged over the area.
- Note: Values are area averages, not the reading at one weather station. NOAA revises the last two years every month.
- Source: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December precipitation, counties (https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping)
- Publisher page: https://invokely.ai/en/publishers/noaa-ncei
- Retrieved: 2026-10-12
- License: Public domain (US government work); NCEI asks users to cite the nClimDiv dataset
- Citation: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.
- Web page: https://invokely.ai/en/annual-precipitation/slope-county-north-dakota
- API: https://invokely.ai/api/v1/series?indicator=precipitation_annual&place=us-county-38087

| Period | inches |
|---|---:|
| 2025 | 19.44 |
| 2024 | 11.46 |
| 2023 | 18.39 |
| 2022 | 15.93 |
| 2021 | 12.03 |
| 2020 | 11.08 |
| 2019 | 22.42 |
| 2018 | 16.93 |
| 2017 | 10.07 |
| 2016 | 15.08 |
| 2015 | 14.82 |
| 2014 | 18.58 |
| 2013 | 25.74 |
| 2012 | 11.29 |
| 2011 | 18.52 |
| 2010 | 16.97 |
| 2009 | 16.6 |
| 2008 | 13.21 |
| 2007 | 13.92 |
| 2006 | 13.37 |
| 2005 | 18.58 |
| 2004 | 14.34 |
| 2003 | 15.66 |
| 2002 | 10.62 |
| 2001 | 13.51 |
| 2000 | 14.89 |
| 1999 | 15.95 |
| 1998 | 19.89 |
| 1997 | 13.38 |
| 1996 | 15.08 |
| 1995 | 15.22 |
| 1994 | 17.05 |
| 1993 | 18.43 |
| 1992 | 12.47 |
| 1991 | 15.81 |
| 1990 | 10.31 |
| 1989 | 12.7 |
| 1988 | 8.76 |
| 1987 | 16.54 |
| 1986 | 18.59 |
| 1985 | 15.14 |
| 1984 | 13.36 |
| 1983 | 12.62 |
| 1982 | 25.02 |
| 1981 | 15.11 |
| 1980 | 11.13 |
| 1979 | 12.65 |
| 1978 | 18.47 |
| 1977 | 20.66 |
| 1976 | 12.91 |
| 1975 | 19.06 |
| 1974 | 13.07 |
| 1973 | 15.86 |
| 1972 | 20.51 |
| 1971 | 22.12 |
| 1970 | 19.88 |
| 1969 | 15.38 |
| 1968 | 13.89 |
| 1967 | 14.88 |
| 1966 | 16.64 |
| 1965 | 16.99 |
| 1964 | 16.55 |
| 1963 | 17.87 |
| 1962 | 19.39 |
| 1961 | 12.96 |
| 1960 | 13.44 |
| 1959 | 11.92 |
| 1958 | 14.24 |
| 1957 | 18.88 |
| 1956 | 12.32 |
| 1955 | 14.88 |
| 1954 | 15.14 |
| 1953 | 17.08 |
| 1952 | 9.21 |
| 1951 | 16.26 |
| 1950 | 14.52 |