# Annual precipitation in Sweet Grass County

Annual precipitation in Sweet Grass County was 22 inches in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `precipitation_annual`
- Place id: `us-county-30097`
- 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/sweet-grass-county-montana
- API: https://invokely.ai/api/v1/series?indicator=precipitation_annual&place=us-county-30097

| Period | inches |
|---|---:|
| 2025 | 22 |
| 2024 | 17.6 |
| 2023 | 23.98 |
| 2022 | 19.37 |
| 2021 | 13.72 |
| 2020 | 17.14 |
| 2019 | 24.74 |
| 2018 | 22.93 |
| 2017 | 22.6 |
| 2016 | 18.07 |
| 2015 | 19.35 |
| 2014 | 22.58 |
| 2013 | 19.82 |
| 2012 | 13.1 |
| 2011 | 22.05 |
| 2010 | 19.7 |
| 2009 | 19.45 |
| 2008 | 19.71 |
| 2007 | 18.19 |
| 2006 | 17.43 |
| 2005 | 21.75 |
| 2004 | 15.76 |
| 2003 | 18.27 |
| 2002 | 16.72 |
| 2001 | 14.75 |
| 2000 | 14.87 |
| 1999 | 15.7 |
| 1998 | 17.89 |
| 1997 | 23.71 |
| 1996 | 20.39 |
| 1995 | 22.12 |
| 1994 | 19.24 |
| 1993 | 23.78 |
| 1992 | 22.32 |
| 1991 | 21.3 |
| 1990 | 15.84 |
| 1989 | 23.32 |
| 1988 | 14.7 |
| 1987 | 16.08 |
| 1986 | 20.54 |
| 1985 | 16.05 |
| 1984 | 15.94 |
| 1983 | 20.3 |
| 1982 | 23.38 |
| 1981 | 19.34 |
| 1980 | 20.94 |
| 1979 | 15.75 |
| 1978 | 21.96 |
| 1977 | 18.47 |
| 1976 | 16.48 |
| 1975 | 26.77 |
| 1974 | 18.76 |
| 1973 | 16.86 |
| 1972 | 21.05 |
| 1971 | 19.2 |
| 1970 | 20.43 |
| 1969 | 16.89 |
| 1968 | 21.19 |
| 1967 | 23.28 |
| 1966 | 14.43 |
| 1965 | 19.11 |
| 1964 | 16.83 |
| 1963 | 17.84 |
| 1962 | 20.05 |
| 1961 | 15.35 |
| 1960 | 13.55 |
| 1959 | 17.44 |
| 1958 | 18.03 |
| 1957 | 24.06 |
| 1956 | 13.94 |
| 1955 | 18.55 |
| 1954 | 13.5 |
| 1953 | 15.54 |
| 1952 | 15.86 |
| 1951 | 18.06 |
| 1950 | 19.12 |