Annual precipitation in Plymouth County

Annual precipitation in Plymouth County was 31.26 inches in 2025, according to NOAA National Centers for Environmental Information. That is down 5.8% from 2024. That is the 73rd highest of 99 counties in 2025.

2025, inches31.26

Change on 2024-5.8%

Rank73rd of 99Counties in Iowa ranked

Series high40.781951

Series low14.471976

Next release: Wednesday, 6 October 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

Annual precipitation in Plymouth County, 1950 to 2025

inches. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12, published 2026-10-06.

All 76 values

Period	inches
2025	31.26
2024	33.17
2023	29.98
2022	19.08
2021	24.06
2020	18.93
2019	38.46
2018	39.62
2017	29.88
2016	33.34
2015	34.3
2014	30.97
2013	28.44
2012	20.96
2011	27.07
2010	38.18
2009	30.69
2008	32.67
2007	35.68
2006	28.31
2005	29.65
2004	33.83
2003	26.06
2002	25.59
2001	29.55
2000	22.96
1999	25.02
1998	32.18
1997	21.26
1996	32.74
1995	29.71
1994	24.61
1993	31.34
1992	34.51
1991	28.36
1990	27.31
1989	17.07
1988	24.82
1987	23.98
1986	28.9
1985	29.94
1984	36.61
1983	34.45
1982	31.94
1981	23.01
1980	19.96
1979	34.08
1978	27.57
1977	30.9
1976	14.47
1975	25.42
1974	20.65
1973	27.79
1972	30.71
1971	25.77
1970	26.23
1969	28.44
1968	30.53
1967	22.16
1966	23.89
1965	31.71
1964	26.83
1963	21.36
1962	30.41
1961	25.65
1960	29.17
1959	29.64
1958	16.18
1957	30.15
1956	16.28
1955	18.44
1954	27.31
1953	30.62
1952	25.48
1951	40.78
1950	25.09

Compared with Iowa and United States

Place	2025
Plymouth County	31.26
Iowa	33.57
United States	29.26

Rankings

US states by annual precipitation 50 places
Counties in Iowa by annual precipitation 99 places

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.

Values are area averages, not the reading at one weather station. NOAA revises the last two years every month.

How to cite

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.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

NOAA National Centers for Environmental Information. (2026). NOAA Climate at a Glance, January to December precipitation, counties (Annual precipitation, Plymouth County, 1950 to 2025) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping

MLA 9

NOAA Climate at a Glance, January to December precipitation, counties, Annual precipitation, Plymouth County, 1950 to 2025. NOAA National Centers for Environmental Information, 6 Oct. 2026, https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Invokely, https://invokely.ai/en/annual-precipitation/plymouth-county-iowa. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December precipitation, counties. Annual precipitation, Plymouth County, 1950 to 2025. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Also distributed by Invokely, https://invokely.ai/en/annual-precipitation/plymouth-county-iowa.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December precipitation, counties, Annual precipitation, Plymouth County, 1950 to 2025 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping, via Invokely: https://invokely.ai/en/annual-precipitation/plymouth-county-iowa (Accessed: 12 October 2026).

BibTeX

@misc{noaa_annual_precipitation_plymouth_county_2025,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December precipitation, counties: Annual precipitation, Plymouth County, 1950 to 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/annual-precipitation/plymouth-county-iowa. Publisher attribution: 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.},
}

RIS

TY  - DATA
AU  - NOAA National Centers for Environmental Information
TI  - NOAA Climate at a Glance, January to December precipitation, counties: Annual precipitation, Plymouth County, 1950 to 2025
PY  - 2026
DA  - 2026/10/06
PB  - NOAA National Centers for Environmental Information
DB  - Invokely
UR  - https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping
L2  - https://invokely.ai/en/annual-precipitation/plymouth-county-iowa
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/annual-precipitation/plymouth-county-iowa.
N1  - Publisher attribution: 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.
ER  -

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Questions

What is the annual precipitation in Plymouth County?

Where does this figure come from?

NOAA National Centers for Environmental Information. NOAA Climate at a Glance, January to December precipitation, counties. Retrieved by Invokely on 2026-10-12.

What was the highest annual precipitation in Plymouth County?

40.78 inches in 1951, the highest value since 1950 in this series.

Related statistics for Plymouth County

All statistics for Plymouth County | Plymouth County in figures