Counties in Colorado by annual precipitation

San Juan County had the highest annual precipitation of 64 counties in 2014, at 40.67 inches. Alamosa County had the lowest, at 9.46 inches. The median was 18.95 inches and the figure for Colorado was 19.14 inches. Source: NOAA National Centers for Environmental Information.

Keep it in a collection in your library.
Highest40.67San Juan County
Lowest9.46Alamosa County
Median18.9564 counties
Colorado19.14History

Map of counties, 2014

Adams County: 20.3 inchesAlamosa County: 9.46 inchesArapahoe County: 20.94 inchesArchuleta County: 16.27 inchesBaca County: 14.33 inchesBent County: 13.22 inchesBoulder County: 23.49 inchesBroomfield County: 18.15 inchesChaffee County: 18.93 inchesCheyenne County: 14.26 inchesClear Creek County: 31.52 inchesConejos County: 12.61 inchesCostilla County: 15.81 inchesCrowley County: 11.04 inchesCuster County: 20.51 inchesDelta County: 18.53 inchesDenver County: 18.48 inchesDolores County: 20.43 inchesDouglas County: 22.14 inchesEagle County: 28.09 inchesElbert County: 18.47 inchesEl Paso County: 15.87 inchesFremont County: 13.79 inchesGarfield County: 25.04 inchesGilpin County: 27.19 inchesGrand County: 27.7 inchesGunnison County: 24.7 inchesHinsdale County: 28.74 inchesHuerfano County: 18.97 inchesJackson County: 29.17 inchesJefferson County: 21.91 inchesKiowa County: 13.75 inchesKit Carson County: 17.4 inchesLake County: 29.36 inchesLa Plata County: 19.05 inchesLarimer County: 25.07 inchesLas Animas County: 14.47 inchesLincoln County: 14 inchesLogan County: 18.82 inchesMesa County: 17.99 inchesMineral County: 23.26 inchesMoffat County: 16.67 inchesMontezuma County: 13.2 inchesMontrose County: 15.24 inchesMorgan County: 20.23 inchesOtero County: 14.29 inchesOuray County: 23.51 inchesPark County: 20.6 inchesPhillips County: 21.41 inchesPitkin County: 32.17 inchesProwers County: 14.21 inchesPueblo County: 13.11 inchesRio Blanco County: 21.56 inchesRio Grande County: 10.77 inchesRoutt County: 29.98 inchesSaguache County: 16.35 inchesSan Juan County: 40.67 inchesSan Miguel County: 18.24 inchesSedgwick County: 18.6 inchesSummit County: 32.07 inchesTeller County: 20.29 inchesWashington County: 19.9 inchesWeld County: 17.79 inchesYuma County: 20.52 inches
  • Under 14
  • 14 to 17
  • 17 to 19
  • 19 to 21
  • 21 to 26
  • 26 and over
inches, 2014. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2014

San Juan County: 40.67 inchesSan Juan County40.67Pitkin County: 32.17 inchesPitkin County32.17Summit County: 32.07 inchesSummit County32.07Clear Creek County: 31.52 inchesClear Creek County31.52Routt County: 29.98 inchesRoutt County29.98Lake County: 29.36 inchesLake County29.36Jackson County: 29.17 inchesJackson County29.17Hinsdale County: 28.74 inchesHinsdale County28.74Eagle County: 28.09 inchesEagle County28.09Grand County: 27.7 inchesGrand County27.7Gilpin County: 27.19 inchesGilpin County27.19Larimer County: 25.07 inchesLarimer County25.07Garfield County: 25.04 inchesGarfield County25.04Gunnison County: 24.7 inchesGunnison County24.7Ouray County: 23.51 inchesOuray County23.51Boulder County: 23.49 inchesBoulder County23.49Mineral County: 23.26 inchesMineral County23.26Douglas County: 22.14 inchesDouglas County22.14Jefferson County: 21.91 inchesJefferson County21.91Rio Blanco County: 21.56 inchesRio Blanco County21.56Phillips County: 21.41 inchesPhillips County21.41Arapahoe County: 20.94 inchesArapahoe County20.94Park County: 20.6 inchesPark County20.6Yuma County: 20.52 inchesYuma County20.52Custer County: 20.51 inchesCuster County20.51Dolores County: 20.43 inchesDolores County20.43Adams County: 20.3 inchesAdams County20.3Teller County: 20.29 inchesTeller County20.29Morgan County: 20.23 inchesMorgan County20.23Washington County: 19.9 inchesWashington County19.9La Plata County: 19.05 inchesLa Plata County19.05Huerfano County: 18.97 inchesHuerfano County18.97Chaffee County: 18.93 inchesChaffee County18.93Logan County: 18.82 inchesLogan County18.82Sedgwick County: 18.6 inchesSedgwick County18.6Delta County: 18.53 inchesDelta County18.53Denver County: 18.48 inchesDenver County18.48Elbert County: 18.47 inchesElbert County18.47San Miguel County: 18.24 inchesSan Miguel County18.24Broomfield County: 18.15 inchesBroomfield County18.15San Juan County: 40.67 inchesSan Juan County40.67Pitkin County: 32.17 inchesPitkin County32.17Summit County: 32.07 inchesSummit County32.07Clear Creek County: 31.52 inchesClear Creek County31.52Routt County: 29.98 inchesRoutt County29.98Lake County: 29.36 inchesLake County29.36Jackson County: 29.17 inchesJackson County29.17Hinsdale County: 28.74 inchesHinsdale County28.74Eagle County: 28.09 inchesEagle County28.09Grand County: 27.7 inchesGrand County27.7Gilpin County: 27.19 inchesGilpin County27.19Larimer County: 25.07 inchesLarimer County25.07Garfield County: 25.04 inchesGarfield County25.04Gunnison County: 24.7 inchesGunnison County24.7Ouray County: 23.51 inchesOuray County23.51Boulder County: 23.49 inchesBoulder County23.49Mineral County: 23.26 inchesMineral County23.26Douglas County: 22.14 inchesDouglas County22.14Jefferson County: 21.91 inchesJefferson County21.91Rio Blanco County: 21.56 inchesRio Blanco County21.56Phillips County: 21.41 inchesPhillips County21.41Arapahoe County: 20.94 inchesArapahoe County20.94Park County: 20.6 inchesPark County20.6Yuma County: 20.52 inchesYuma County20.52Custer County: 20.51 inchesCuster County20.51Dolores County: 20.43 inchesDolores County20.43Adams County: 20.3 inchesAdams County20.3Teller County: 20.29 inchesTeller County20.29Morgan County: 20.23 inchesMorgan County20.23Washington County: 19.9 inchesWashington County19.9La Plata County: 19.05 inchesLa Plata County19.05Huerfano County: 18.97 inchesHuerfano County18.97Chaffee County: 18.93 inchesChaffee County18.93Logan County: 18.82 inchesLogan County18.82Sedgwick County: 18.6 inchesSedgwick County18.6Delta County: 18.53 inchesDelta County18.53Denver County: 18.48 inchesDenver County18.48Elbert County: 18.47 inchesElbert County18.47San Miguel County: 18.24 inchesSan Miguel County18.24Broomfield County: 18.15 inchesBroomfield County18.15
inches. Source: NOAA NCEI, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12.

Full ranking

RankCounties2014
inches
Change on 2013
1San Juan County40.67+0.2%
2Pitkin County32.17+0.2%
3Summit County32.07+7.2%
4Clear Creek County31.52-0.9%
5Routt County29.98+10.7%
6Lake County29.36+3.8%
7Jackson County29.17+17.7%
8Hinsdale County28.74-7.3%
9Eagle County28.09+9%
10Grand County27.7+6.3%
11Gilpin County27.19-4.3%
12Larimer County25.07-0.1%
13Garfield County25.04+2.9%
14Gunnison County24.7-1%
15Ouray County23.51+2.6%
16Boulder County23.49-6.1%
17Mineral County23.26-22.7%
18Douglas County22.14+19.2%
19Jefferson County21.91+4.8%
20Rio Blanco County21.56+8.5%
21Phillips County21.41+46.5%
22Arapahoe County20.94+14.8%
23Park County20.6-3%
24Yuma County20.52+42%
25Custer County20.51+0.7%
26Dolores County20.43-14.2%
27Adams County20.3+15.7%
28Teller County20.29-5.3%
29Morgan County20.23+38.4%
30Washington County19.9+20.5%
31La Plata County19.05-19.9%
32Huerfano County18.97+3.2%
33Chaffee County18.93-6.2%
34Logan County18.82+13.6%
35Sedgwick County18.6+11.7%
36Delta County18.53-8.1%
37Denver County18.48+9.9%
38Elbert County18.47+2.7%
39San Miguel County18.24-10.3%
40Broomfield County18.15+5.8%
41Mesa County17.99-10.6%
42Weld County17.79+4.8%
43Kit Carson County17.4+6.6%
44Moffat County16.67+5.9%
45Saguache County16.35-3.1%
46Archuleta County16.27-28.9%
47El Paso County15.87-7.8%
48Costilla County15.81-18%
49Montrose County15.24-16.6%
50Las Animas County14.47+6.2%
51Baca County14.33+0.6%
52Otero County14.29+82.7%
53Cheyenne County14.26+3.2%
54Prowers County14.21+7.3%
55Lincoln County14-2%
56Fremont County13.79-11.1%
57Kiowa County13.75+8.8%
58Bent County13.22+37.3%
59Montezuma County13.2-23.3%
60Pueblo County13.11+11.8%
61Conejos County12.61-27.4%
62Crowley County11.04+41.9%
63Rio Grande County10.77-27.3%
64Alamosa County9.46-23.3%

Other periods

About this ranking

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.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

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 (Counties in Colorado by annual precipitation, 2014) [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, Counties in Colorado by annual precipitation, 2014. 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/rankings/annual-precipitation/colorado-counties?period=2014. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December precipitation, counties. Counties in Colorado by annual precipitation, 2014. 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/rankings/annual-precipitation/colorado-counties?period=2014.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December precipitation, counties, Counties in Colorado by annual precipitation, 2014 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping, via Invokely: https://invokely.ai/rankings/annual-precipitation/colorado-counties?period=2014 (Accessed: 12 October 2026).

BibTeX
@misc{noaa_counties_in_colorado_by_2014,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December precipitation, counties: Counties in Colorado by annual precipitation, 2014}},
  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/rankings/annual-precipitation/colorado-counties?period=2014. 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: Counties in Colorado by annual precipitation, 2014
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/rankings/annual-precipitation/colorado-counties?period=2014
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/colorado-counties?period=2014.
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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Rank Counties in Colorado by annual precipitation using official data, and cite the source.
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Questions

Which county has the highest annual precipitation?

San Juan County, with 40.67 inches in 2014, according to NOAA National Centers for Environmental Information.

Which county has the lowest annual precipitation?

Alamosa County, with 9.46 inches in 2014.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December precipitation, counties. Retrieved 2026-10-12.

Annual precipitation: other rankings

Counties in Colorado: more rankings