Data / Annual precipitation / Idaho

Annual precipitation in Idaho

Annual precipitation in Idaho was 23.15 inches in 2025, according to NOAA National Centers for Environmental Information. That is up 3.6% from 2024. That is the 42nd highest of 50 states in 2025.

2025, inches23.15
Change on 2024+3.6%
Rank42nd of 50US states ranked
Series high32.11996
Series low16.171935

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

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Annual precipitation in Idaho, 1895 to 2025

1520253035189519141933195219711990200920251895: 19.79 inches1896: 29.69 inches1897: 26.01 inches1898: 18.25 inches1899: 23.92 inches1900: 21.42 inches1901: 22.05 inches1902: 22.94 inches1903: 24.16 inches1904: 25.18 inches1905: 18.95 inches1906: 28.52 inches1907: 27.83 inches1908: 21.68 inches1909: 29.63 inches1910: 22.88 inches1911: 22.9 inches1912: 26.59 inches1913: 25.54 inches1914: 21.17 inches1915: 23.72 inches1916: 26.33 inches1917: 23.64 inches1918: 21.3 inches1919: 20.07 inches1920: 23.87 inches1921: 25.69 inches1922: 22.27 inches1923: 25.58 inches1924: 17.7 inches1925: 26.07 inches1926: 22.79 inches1927: 30.15 inches1928: 17.92 inches1929: 18.56 inches1930: 21.4 inches1931: 18.61 inches1932: 24.21 inches1933: 22.42 inches1934: 19.36 inches1935: 16.17 inches1936: 21.71 inches1937: 24.18 inches1938: 25.93 inches1939: 16.76 inches1940: 27.91 inches1941: 26.5 inches1942: 25.47 inches1943: 21.09 inches1944: 20.78 inches1945: 26.63 inches1946: 26.51 inches1947: 22.11 inches1948: 27.17 inches1949: 20.02 inches1950: 27.44 inches1951: 26.14 inches1952: 18.39 inches1953: 23.68 inches1954: 21.48 inches1955: 27.31 inches1956: 22.11 inches1957: 25.06 inches1958: 25.22 inches1959: 22.94 inches1960: 21.58 inches1961: 23.27 inches1962: 23.04 inches1963: 26.24 inches1964: 30.69 inches1965: 23.26 inches1966: 18.82 inches1967: 25.49 inches1968: 26.49 inches1969: 21.58 inches1970: 30.15 inches1971: 28.13 inches1972: 25.53 inches1973: 24.09 inches1974: 22.67 inches1975: 29.12 inches1976: 20.29 inches1977: 24.01 inches1978: 23.24 inches1979: 19.85 inches1980: 28.67 inches1981: 26.14 inches1982: 30.55 inches1983: 31.41 inches1984: 27.35 inches1985: 20.14 inches1986: 25.08 inches1987: 18.42 inches1988: 20.49 inches1989: 20.96 inches1990: 23.41 inches1991: 22.42 inches1992: 18.96 inches1993: 24.08 inches1994: 20.39 inches1995: 31.11 inches1996: 32.1 inches1997: 25.28 inches1998: 28.95 inches1999: 22.64 inches2000: 20.89 inches2001: 19.13 inches2002: 18.98 inches2003: 22.56 inches2004: 23.18 inches2005: 24.58 inches2006: 26.38 inches2007: 19.56 inches2008: 21.97 inches2009: 22.88 inches2010: 26.14 inches2011: 24.69 inches2012: 25.71 inches2013: 17.64 inches2014: 26.47 inches2015: 22.52 inches2016: 24.88 inches2017: 28.83 inches2018: 21.88 inches2019: 23.41 inches2020: 22.19 inches2021: 21.01 inches2022: 22.04 inches2023: 22.13 inches2024: 22.34 inches2025: 23.15 inches152025303518951939198320251895: 19.79 inches1896: 29.69 inches1897: 26.01 inches1898: 18.25 inches1899: 23.92 inches1900: 21.42 inches1901: 22.05 inches1902: 22.94 inches1903: 24.16 inches1904: 25.18 inches1905: 18.95 inches1906: 28.52 inches1907: 27.83 inches1908: 21.68 inches1909: 29.63 inches1910: 22.88 inches1911: 22.9 inches1912: 26.59 inches1913: 25.54 inches1914: 21.17 inches1915: 23.72 inches1916: 26.33 inches1917: 23.64 inches1918: 21.3 inches1919: 20.07 inches1920: 23.87 inches1921: 25.69 inches1922: 22.27 inches1923: 25.58 inches1924: 17.7 inches1925: 26.07 inches1926: 22.79 inches1927: 30.15 inches1928: 17.92 inches1929: 18.56 inches1930: 21.4 inches1931: 18.61 inches1932: 24.21 inches1933: 22.42 inches1934: 19.36 inches1935: 16.17 inches1936: 21.71 inches1937: 24.18 inches1938: 25.93 inches1939: 16.76 inches1940: 27.91 inches1941: 26.5 inches1942: 25.47 inches1943: 21.09 inches1944: 20.78 inches1945: 26.63 inches1946: 26.51 inches1947: 22.11 inches1948: 27.17 inches1949: 20.02 inches1950: 27.44 inches1951: 26.14 inches1952: 18.39 inches1953: 23.68 inches1954: 21.48 inches1955: 27.31 inches1956: 22.11 inches1957: 25.06 inches1958: 25.22 inches1959: 22.94 inches1960: 21.58 inches1961: 23.27 inches1962: 23.04 inches1963: 26.24 inches1964: 30.69 inches1965: 23.26 inches1966: 18.82 inches1967: 25.49 inches1968: 26.49 inches1969: 21.58 inches1970: 30.15 inches1971: 28.13 inches1972: 25.53 inches1973: 24.09 inches1974: 22.67 inches1975: 29.12 inches1976: 20.29 inches1977: 24.01 inches1978: 23.24 inches1979: 19.85 inches1980: 28.67 inches1981: 26.14 inches1982: 30.55 inches1983: 31.41 inches1984: 27.35 inches1985: 20.14 inches1986: 25.08 inches1987: 18.42 inches1988: 20.49 inches1989: 20.96 inches1990: 23.41 inches1991: 22.42 inches1992: 18.96 inches1993: 24.08 inches1994: 20.39 inches1995: 31.11 inches1996: 32.1 inches1997: 25.28 inches1998: 28.95 inches1999: 22.64 inches2000: 20.89 inches2001: 19.13 inches2002: 18.98 inches2003: 22.56 inches2004: 23.18 inches2005: 24.58 inches2006: 26.38 inches2007: 19.56 inches2008: 21.97 inches2009: 22.88 inches2010: 26.14 inches2011: 24.69 inches2012: 25.71 inches2013: 17.64 inches2014: 26.47 inches2015: 22.52 inches2016: 24.88 inches2017: 28.83 inches2018: 21.88 inches2019: 23.41 inches2020: 22.19 inches2021: 21.01 inches2022: 22.04 inches2023: 22.13 inches2024: 22.34 inches2025: 23.15 inches
inches. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, contiguous US and statewide. Retrieved 2026-10-12, published 2026-10-06.
All 131 values
Periodinches
202523.15
202422.34
202322.13
202222.04
202121.01
202022.19
201923.41
201821.88
201728.83
201624.88
201522.52
201426.47
201317.64
201225.71
201124.69
201026.14
200922.88
200821.97
200719.56
200626.38
200524.58
200423.18
200322.56
200218.98
200119.13
200020.89
199922.64
199828.95
199725.28
199632.1
199531.11
199420.39
199324.08
199218.96
199122.42
199023.41
198920.96
198820.49
198718.42
198625.08
198520.14
198427.35
198331.41
198230.55
198126.14
198028.67
197919.85
197823.24
197724.01
197620.29
197529.12
197422.67
197324.09
197225.53
197128.13
197030.15
196921.58
196826.49
196725.49
196618.82
196523.26
196430.69
196326.24
196223.04
196123.27
196021.58
195922.94
195825.22
195725.06
195622.11
195527.31
195421.48
195323.68
195218.39
195126.14
195027.44
194920.02
194827.17
194722.11
194626.51
194526.63
194420.78
194321.09
194225.47
194126.5
194027.91
193916.76
193825.93
193724.18
193621.71
193516.17
193419.36
193322.42
193224.21
193118.61
193021.4
192918.56
192817.92
192730.15
192622.79
192526.07
192417.7
192325.58
192222.27
192125.69
192023.87
191920.07
191821.3
191723.64
191626.33
191523.72
191421.17
191325.54
191226.59
191122.9
191022.88
190929.63
190821.68
190727.83
190628.52
190518.95
190425.18
190324.16
190222.94
190122.05
190021.42
189923.92
189818.25
189726.01
189629.69
189519.79

Compared with United States

Place2025
Idaho23.15
United States29.26

Idaho compared with nearby places

Alabama: 51.8 inchesAlaska: 39.14 inchesArizona: 9.82 inchesArkansas: 51.56 inchesCalifornia: 23.29 inchesColorado: 16.04 inchesConnecticut: 41.87 inchesDelaware: 40.26 inchesFlorida: 44.66 inchesGeorgia: 44.1 inchesHawaii: 41.96 inchesIdaho: 23.15 inchesIllinois: 32.96 inchesIndiana: 39.86 inchesIowa: 33.57 inchesKansas: 29.48 inchesKentucky: 57.49 inchesLouisiana: 53.05 inchesMaine: 38.95 inchesMaryland: 38.37 inchesMassachusetts: 42.92 inchesMichigan: 32.02 inchesMinnesota: 26.58 inchesMississippi: 52.37 inchesMissouri: 38.09 inchesMontana: 20.04 inchesNebraska: 24.34 inchesNevada: 9.41 inchesNew Hampshire: 40.02 inchesNew Jersey: 38.86 inchesNew Mexico: 12.51 inchesNew York: 40.19 inchesNorth Carolina: 44.61 inchesNorth Dakota: 19.87 inchesOhio: 39.11 inchesOklahoma: 39.46 inchesOregon: 29.14 inchesPennsylvania: 40.27 inchesRhode Island: 44.81 inchesSouth Carolina: 43.11 inchesSouth Dakota: 23.26 inchesTennessee: 53.42 inchesTexas: 26.01 inchesUtah: 10.4 inchesVermont: 41.98 inchesVirginia: 43.38 inchesWashington: 40.04 inchesWest Virginia: 45.08 inchesWisconsin: 30.64 inchesWyoming: 16.29 inches
  • Under 23
  • 23 to 31
  • 31 to 39
  • 39 to 41
  • 41 to 45
  • 45 and over
  • No data
Annual precipitation, 2025, inches. Idaho is outlined. Same source and period for every area shown. Source: NOAA National Centers for Environmental Information. Boundaries: U.S. Census Bureau cartographic boundary files.

Rankings

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.

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How to cite

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/10/pcp/12/12/1895-2025/data.json. 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, contiguous US and statewide (Annual precipitation, Idaho, 1895 to 2025) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/10/pcp/12/12/1895-2025/data.json

MLA 9

NOAA Climate at a Glance, January to December precipitation, contiguous US and statewide, Annual precipitation, Idaho, 1895 to 2025. NOAA National Centers for Environmental Information, 6 Oct. 2026, https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/10/pcp/12/12/1895-2025/data.json. Invokely, https://invokely.ai/en/annual-precipitation/idaho. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December precipitation, contiguous US and statewide. Annual precipitation, Idaho, 1895 to 2025. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/10/pcp/12/12/1895-2025/data.json. Also distributed by Invokely, https://invokely.ai/en/annual-precipitation/idaho.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December precipitation, contiguous US and statewide, Annual precipitation, Idaho, 1895 to 2025 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/10/pcp/12/12/1895-2025/data.json, via Invokely: https://invokely.ai/en/annual-precipitation/idaho (Accessed: 12 October 2026).

BibTeX
@misc{noaa_annual_precipitation_idaho_2025,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December precipitation, contiguous US and statewide: Annual precipitation, Idaho, 1895 to 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/10/pcp/12/12/1895-2025/data.json},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/annual-precipitation/idaho. Publisher attribution: 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/10/pcp/12/12/1895-2025/data.json. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - NOAA National Centers for Environmental Information
TI  - NOAA Climate at a Glance, January to December precipitation, contiguous US and statewide: Annual precipitation, Idaho, 1895 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/statewide/time-series/10/pcp/12/12/1895-2025/data.json
L2  - https://invokely.ai/en/annual-precipitation/idaho
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/annual-precipitation/idaho.
N1  - Publisher attribution: 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/10/pcp/12/12/1895-2025/data.json. Retrieved 2026-10-12.
ER  -
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Questions

What is the annual precipitation in Idaho?

Annual precipitation in Idaho was 23.15 inches in 2025, according to NOAA National Centers for Environmental Information. That is up 3.6% from 2024. That is the 42nd highest of 50 states in 2025.

Where does this figure come from?

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

What was the highest annual precipitation in Idaho?

32.1 inches in 1996, the highest value since 1895 in this series.

Annual precipitation elsewhere in United States

Related statistics for Idaho

All statistics for Idaho | Idaho in figures