Counties in Maryland by annual precipitation

Baltimore city had the highest annual precipitation of 24 counties in 2014, at 56.17 inches. Allegany County had the lowest, at 36.46 inches. The median was 44.08 inches and the figure for Maryland was 44.76 inches. Source: NOAA National Centers for Environmental Information.

Highest56.17Baltimore city

Lowest36.46Allegany County

Median44.0824 counties

Maryland44.76History

Map of counties, 2014

Under 41
41 to 43
43 to 47
47 to 49
49 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.

All counties, 2014

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

Full ranking

Rank	Counties	2014 inches	Change on 2013
1	Baltimore city	56.17	+21.8%
2	Baltimore County	52.85	+9.7%
3	Howard County	51.72	+13.5%
4	Cecil County	50.02	-5.4%
5	Harford County	49.01	-7.7%
6	Anne Arundel County	48.78	+9.6%
7	Carroll County	47.71	+8.5%
8	Montgomery County	47.42	+5.3%
9	Frederick County	46.73	+9.5%
10	Prince George's County	46.68	+3.2%
11	Kent County	46.21	-6.2%
12	Garrett County	44.36	-6%
13	Wicomico County	43.8	-10.6%
14	Queen Anne's County	43.35	-6.2%
15	Caroline County	42.85	-9.5%
16	Talbot County	42.15	-3.9%
17	Dorchester County	41.78	-10.3%
18	Somerset County	41.74	-11.9%
19	Worcester County	41.31	-16%
20	Washington County	41.16	+6.5%
21	Calvert County	41.09	-13.5%
22	Charles County	40.37	-7.9%
23	St. Mary's County	39.12	-17.7%
24	Allegany County	36.46	-1.4%

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 Maryland 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 Maryland 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/maryland-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 Maryland 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/maryland-counties?period=2014.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December precipitation, counties, Counties in Maryland 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/maryland-counties?period=2014 (Accessed: 12 October 2026).

BibTeX

@misc{noaa_counties_in_maryland_by_2014,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December precipitation, counties: Counties in Maryland 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/maryland-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 Maryland 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/maryland-counties?period=2014
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/annual-precipitation/maryland-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  -

Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Embed code

<iframe src="https://invokely.ai/embed/rankings/annual-precipitation/maryland-counties?period=2014" width="760" height="500" title="Counties in Maryland by annual precipitation, 2014, chart from Invokely" loading="lazy" style="border:0;width:100%;max-width:760px" referrerpolicy="strict-origin-when-cross-origin"></iframe>

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Maryland by annual precipitation using official data, and cite the source.

rank_places {"indicator":"precipitation_annual","level":"province","within":"Maryland","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=precipitation_annual&level=province&within=Maryland&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest annual precipitation?

Baltimore city, with 56.17 inches in 2014, according to NOAA National Centers for Environmental Information.

Which county has the lowest annual precipitation?

Allegany County, with 36.46 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.