# Annual precipitation in Delaware

Annual precipitation in Delaware was 40.26 inches in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `precipitation_annual`
- Place id: `us-state-10`
- 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, contiguous US and statewide (https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/7/pcp/12/12/1895-2025/data.json)
- 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, contiguous US and statewide. 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/statewide/time-series/7/pcp/12/12/1895-2025/data.json. Retrieved 2026-10-12.
- Web page: https://invokely.ai/en/annual-precipitation/delaware
- API: https://invokely.ai/api/v1/series?indicator=precipitation_annual&place=us-state-10

| Period | inches |
|---|---:|
| 2025 | 40.26 |
| 2024 | 37.63 |
| 2023 | 44.19 |
| 2022 | 41.27 |
| 2021 | 40.9 |
| 2020 | 55.92 |
| 2019 | 41.02 |
| 2018 | 60.02 |
| 2017 | 44.53 |
| 2016 | 45.67 |
| 2015 | 46.27 |
| 2014 | 45 |
| 2013 | 50.75 |
| 2012 | 39.32 |
| 2011 | 44.56 |
| 2010 | 40.56 |
| 2009 | 55.94 |
| 2008 | 42.61 |
| 2007 | 38.4 |
| 2006 | 46.76 |
| 2005 | 46.87 |
| 2004 | 44.71 |
| 2003 | 57.82 |
| 2002 | 46.47 |
| 2001 | 39.22 |
| 2000 | 46.19 |
| 1999 | 45.64 |
| 1998 | 41.55 |
| 1997 | 41.11 |
| 1996 | 57.9 |
| 1995 | 38.39 |
| 1994 | 47.31 |
| 1993 | 44.44 |
| 1992 | 40.54 |
| 1991 | 41.84 |
| 1990 | 43.03 |
| 1989 | 56.76 |
| 1988 | 38.8 |
| 1987 | 36.36 |
| 1986 | 36.99 |
| 1985 | 39.35 |
| 1984 | 44.02 |
| 1983 | 53.82 |
| 1982 | 40.01 |
| 1981 | 36.68 |
| 1980 | 38.92 |
| 1979 | 55.64 |
| 1978 | 46.39 |
| 1977 | 40.5 |
| 1976 | 38.43 |
| 1975 | 53.85 |
| 1974 | 38.73 |
| 1973 | 44.48 |
| 1972 | 53.9 |
| 1971 | 49.79 |
| 1970 | 39.55 |
| 1969 | 45.15 |
| 1968 | 32.24 |
| 1967 | 47.53 |
| 1966 | 39.04 |
| 1965 | 29.86 |
| 1964 | 35.72 |
| 1963 | 35.93 |
| 1962 | 38.61 |
| 1961 | 45.24 |
| 1960 | 44.12 |
| 1959 | 43.05 |
| 1958 | 54.31 |
| 1957 | 37.89 |
| 1956 | 46.52 |
| 1955 | 39.85 |
| 1954 | 37.15 |
| 1953 | 45.87 |
| 1952 | 50.48 |
| 1951 | 43.38 |
| 1950 | 38.48 |
| 1949 | 39.69 |
| 1948 | 60.05 |
| 1947 | 39.06 |
| 1946 | 36.79 |
| 1945 | 52.82 |
| 1944 | 44.57 |
| 1943 | 36.05 |
| 1942 | 43.81 |
| 1941 | 35.02 |
| 1940 | 41.44 |
| 1939 | 45.46 |
| 1938 | 49.64 |
| 1937 | 52.41 |
| 1936 | 47.9 |
| 1935 | 53.62 |
| 1934 | 48.7 |
| 1933 | 48.63 |
| 1932 | 46.36 |
| 1931 | 38.76 |
| 1930 | 27.37 |
| 1929 | 39.85 |
| 1928 | 45.86 |
| 1927 | 39.71 |
| 1926 | 44.61 |
| 1925 | 35.37 |
| 1924 | 47.03 |
| 1923 | 42.7 |
| 1922 | 42.52 |
| 1921 | 33.19 |
| 1920 | 48.62 |
| 1919 | 53.09 |
| 1918 | 37.03 |
| 1917 | 45.97 |
| 1916 | 39.62 |
| 1915 | 43.59 |
| 1914 | 35.3 |
| 1913 | 39.85 |
| 1912 | 42.76 |
| 1911 | 45.35 |
| 1910 | 41.23 |
| 1909 | 39.7 |
| 1908 | 40.32 |
| 1907 | 49.92 |
| 1906 | 49.11 |
| 1905 | 43.32 |
| 1904 | 37.48 |
| 1903 | 48.85 |
| 1902 | 50.72 |
| 1901 | 42.88 |
| 1900 | 39.83 |
| 1899 | 39.67 |
| 1898 | 41.82 |
| 1897 | 45.03 |
| 1896 | 39.5 |
| 1895 | 36.56 |