# Counties in Maryland by annual precipitation, 2025

All 24 values come from NOAA National Centers for Environmental Information for 2025, so the places are comparable.

- Indicator id: `precipitation_annual`
- 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.
- Source: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December precipitation, counties (https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping)
- Publisher page: https://invokely.ai/en/publishers/noaa-ncei
- Retrieved: 2026-10-12
- Citation: 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.
- Web page: https://invokely.ai/rankings/annual-precipitation/maryland-counties

| Rank | Place | inches |
|---:|---|---:|
| 1 | Garrett County | 45.69 |
| 2 | Worcester County | 42.12 |
| 3 | St. Mary's County | 42.06 |
| 4 | Somerset County | 41.96 |
| 5 | Baltimore County | 40.15 |
| 6 | Wicomico County | 39.93 |
| 7 | Calvert County | 39.8 |
| 8 | Harford County | 39.18 |
| 9 | Caroline County | 39.15 |
| 10 | Dorchester County | 38.98 |
| 11 | Anne Arundel County | 38.73 |
| 12 | Talbot County | 38.68 |
| 13 | Cecil County | 38.46 |
| 14 | Baltimore city | 38.44 |
| 15 | Charles County | 37.68 |
| 16 | Prince George's County | 37.59 |
| 17 | Queen Anne's County | 37.28 |
| 18 | Carroll County | 36.85 |
| 19 | Howard County | 36.51 |
| 20 | Kent County | 36 |
| 21 | Allegany County | 35.2 |
| 22 | Montgomery County | 33.75 |
| 23 | Frederick County | 33.01 |
| 24 | Washington County | 32.14 |