# Annual precipitation in Lyon County

Annual precipitation in Lyon County was 25.96 inches in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `precipitation_annual`
- Place id: `us-county-19119`
- 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/lyon-county-iowa
- API: https://invokely.ai/api/v1/series?indicator=precipitation_annual&place=us-county-19119

| Period | inches |
|---|---:|
| 2025 | 25.96 |
| 2024 | 37.51 |
| 2023 | 24.81 |
| 2022 | 19.04 |
| 2021 | 28.6 |
| 2020 | 18.71 |
| 2019 | 42.61 |
| 2018 | 46.52 |
| 2017 | 27.44 |
| 2016 | 34.32 |
| 2015 | 31.45 |
| 2014 | 29.02 |
| 2013 | 28.62 |
| 2012 | 21.13 |
| 2011 | 22.95 |
| 2010 | 39.43 |
| 2009 | 26.99 |
| 2008 | 29.72 |
| 2007 | 29.18 |
| 2006 | 28.73 |
| 2005 | 34.28 |
| 2004 | 30.59 |
| 2003 | 23.83 |
| 2002 | 21.39 |
| 2001 | 32.2 |
| 2000 | 25.15 |
| 1999 | 21.34 |
| 1998 | 28.19 |
| 1997 | 22.38 |
| 1996 | 26.75 |
| 1995 | 31.65 |
| 1994 | 22.98 |
| 1993 | 38.44 |
| 1992 | 34.36 |
| 1991 | 23.92 |
| 1990 | 26.92 |
| 1989 | 17.64 |
| 1988 | 20.93 |
| 1987 | 22.93 |
| 1986 | 29.95 |
| 1985 | 31.03 |
| 1984 | 33.05 |
| 1983 | 33.35 |
| 1982 | 34.83 |
| 1981 | 22.31 |
| 1980 | 18.45 |
| 1979 | 35.48 |
| 1978 | 24.8 |
| 1977 | 33.5 |
| 1976 | 14.11 |
| 1975 | 29.12 |
| 1974 | 18.08 |
| 1973 | 26.36 |
| 1972 | 30.48 |
| 1971 | 24.19 |
| 1970 | 23.9 |
| 1969 | 26.03 |
| 1968 | 31.62 |
| 1967 | 19.88 |
| 1966 | 21.21 |
| 1965 | 30.64 |
| 1964 | 28.74 |
| 1963 | 20.35 |
| 1962 | 27.92 |
| 1961 | 25.56 |
| 1960 | 30.17 |
| 1959 | 29.98 |
| 1958 | 15.13 |
| 1957 | 29.84 |
| 1956 | 20.86 |
| 1955 | 16.25 |
| 1954 | 28.11 |
| 1953 | 29.85 |
| 1952 | 21.61 |
| 1951 | 37.22 |
| 1950 | 22.95 |