Iowa weather in March: Statewide normals and every place, NOAA 1991-2020
In March, Iowa's statewide normal high is 46°F and normal low 26°F; normal highs run from 38°F in Northwood to 52°F in Shenandoah (NOAA 1991-2020 normals).
- Statewide normal high
- 46°FMarch, 1991-2020
- Statewide normal low
- 26°FMarch, 1991-2020
- Statewide normal precipitation
- 1.99 inMarch
- Warmest place
- 52°Fnormal high, Shenandoah
- Coolest place
- 38°Fnormal high, Northwood
Where is Iowa warmest and wettest in March?
Shenandoah has the warmest March afternoons (52°F) and Northwood the coolest (38°F). Lowden gets the most precipitation (2.80 in) and Spirit Lake the least (1.43 in). The most snow falls in Mason City (7.0 inches).
Statewide, March averaged 42.3°F in 2021, 37.1°F in 2022, 34.0°F in 2023, 40.6°F in 2024, 42.6°F in 2025, 42.4°F in 2026, against a 1991-2020 normal of 36.4°F.
| Place | High | Low | Precip. | Snow |
|---|---|---|---|---|
| Des Moines | 49°F | 30°F | 2.17 | 4.4 |
| Cedar Rapids | 46°F | 27°F | 1.99 | – |
| Davenport | 48°F | 29°F | 2.34 | – |
| Sioux City | 48°F | 26°F | 1.76 | 5.7 |
| Ankeny | 47°F | 27°F | 2.01 | 3.7 |
| Iowa City | 50°F | 30°F | 2.21 | – |
| Ames | 47°F | 27°F | 1.95 | – |
| Waterloo | 47°F | 27°F | 1.98 | 4.6 |
| Dubuque | 44°F | 26°F | 2.25 | 5.7 |
| Marion | 49°F | 28°F | 2.06 | 4.0 |
| Marshalltown | 46°F | 26°F | 1.64 | – |
| Mason City | 42°F | 24°F | 2.29 | 7.0 |
| Ottumwa | 50°F | 29°F | 2.24 | 3.0 |
| Fort Dodge | 44°F | 24°F | 1.96 | 5.6 |
| Clinton | 48°F | 29°F | 2.32 | 3.9 |
| Burlington | 50°F | 31°F | 2.43 | – |
| Muscatine | 50°F | 28°F | 2.55 | 2.8 |
| Indianola | 50°F | 27°F | 1.94 | 3.7 |
| Newton | 46°F | 26°F | 2.06 | 4.5 |
| Boone | 46°F | 26°F | 2.26 | 5.0 |
| Storm Lake | 43°F | 25°F | 1.74 | – |
| Oskaloosa | 49°F | 27°F | 2.15 | – |
| Spencer | 44°F | 25°F | 1.44 | – |
| Le Mars | 46°F | 23°F | 1.85 | 4.6 |
| Carroll | 46°F | 25°F | 1.87 | – |
| Fort Madison | 50°F | 32°F | 2.72 | 1.7 |
| Fairfield | 49°F | 28°F | 2.40 | 2.7 |
| Grinnell | 46°F | 25°F | 2.22 | 3.4 |
| Keokuk | 50°F | 31°F | 2.54 | – |
| Sioux Center | 46°F | 25°F | 1.72 | 5.6 |
| Mount Pleasant | 49°F | 27°F | 2.31 | 2.8 |
| Denison | 45°F | 25°F | 1.88 | 4.7 |
| Perry | 48°F | 26°F | 1.96 | – |
| Webster City | 44°F | 23°F | 2.05 | 4.4 |
| Decorah | 46°F | 26°F | 2.05 | 5.7 |
| Knoxville | 48°F | 28°F | 1.87 | – |
| Creston | 49°F | 26°F | 2.53 | – |
| Washington | 48°F | 27°F | 2.32 | 2.3 |
| Charles City | 43°F | 25°F | 1.93 | 5.4 |
| Atlantic | 50°F | 25°F | 1.89 | 3.4 |
| Independence | 44°F | 24°F | 2.02 | 3.8 |
| Maquoketa | 45°F | 26°F | 2.22 | 3.8 |
| Anamosa | 45°F | 25°F | 1.80 | – |
| Estherville | 41°F | 23°F | 1.45 | – |
| Oelwein | 43°F | 24°F | – | – |
| Osceola | 50°F | 26°F | 2.13 | 3.1 |
| Sheldon | 43°F | 21°F | 1.91 | 6.6 |
| Spirit Lake | 42°F | 23°F | 1.43 | 6.0 |
| Winterset | 48°F | 25°F | 2.12 | 4.7 |
| Red Oak | 51°F | 28°F | 2.03 | 2.6 |
| Centerville | 51°F | 27°F | 2.15 | 3.2 |
| Algona | 43°F | 23°F | 1.95 | – |
| Clarinda | 51°F | 28°F | 2.22 | 2.7 |
| Manchester | 44°F | 24°F | 2.10 | 4.2 |
| Glenwood | 52°F | 28°F | 2.03 | 3.4 |
| Cherokee | 45°F | 23°F | 1.66 | 5.2 |
| Iowa Falls | 44°F | 24°F | 2.08 | 4.5 |
| Vinton | 44°F | 24°F | 2.05 | 4.4 |
| Harlan | 50°F | 25°F | 2.05 | 4.0 |
| Shenandoah | 52°F | 29°F | 2.06 | 2.8 |
| Le Claire | 47°F | 28°F | 2.57 | – |
| Humboldt | 43°F | 25°F | 2.02 | – |
| Hampton | 43°F | 24°F | 2.09 | – |
| Chariton | 49°F | 25°F | 1.90 | 3.5 |
| Forest City | 40°F | 23°F | 1.94 | – |
| Jefferson | 46°F | 25°F | 1.96 | 4.8 |
| Cresco | 42°F | 21°F | 1.89 | 6.0 |
| Waukon | 42°F | 23°F | 2.03 | – |
| Emmetsburg | 44°F | 24°F | 1.78 | 5.9 |
| Albia | 49°F | 28°F | 2.02 | 3.9 |
| Osage | 41°F | 23°F | 1.91 | 6.2 |
| New Hampton | 41°F | 22°F | 2.35 | 6.2 |
| Williamsburg | 47°F | 26°F | 2.19 | 3.6 |
| Milford | 42°F | 24°F | 1.61 | 5.3 |
| Tipton | 47°F | 28°F | 2.14 | – |
| Grundy Center | 44°F | 24°F | 1.88 | 3.9 |
| Onawa | 50°F | 24°F | 1.57 | 4.5 |
| Sibley | 41°F | 21°F | 1.59 | 7.0 |
| Bloomfield | 50°F | 30°F | 2.23 | 3.2 |
| Clarion | 44°F | 25°F | 1.96 | 5.7 |
| Rock Rapids | 43°F | 22°F | 1.52 | 5.6 |
| Hawarden | 45°F | 23°F | 1.69 | 4.4 |
| Eldora | 44°F | 24°F | 2.09 | 4.0 |
| Postville | 43°F | 22°F | 2.09 | 5.0 |
| Cascade | 45°F | 26°F | 2.15 | 4.2 |
| Toledo | 45°F | 25°F | 1.79 | 4.2 |
| Belle Plaine | 46°F | 26°F | 2.03 | 3.4 |
| Bellevue | 46°F | 26°F | 2.16 | 3.9 |
| Rockwell City | 45°F | 24°F | 1.99 | 4.9 |
| Lamoni | 51°F | 31°F | 2.20 | – |
| Northwood | 38°F | 21°F | 1.99 | 6.2 |
| Audubon | 46°F | 24°F | 1.68 | – |
| Britt | 41°F | 23°F | 2.14 | – |
| Sac City | 44°F | 24°F | 1.82 | 4.2 |
| Greenfield | 48°F | 27°F | 1.99 | 3.0 |
| Ida Grove | 45°F | 25°F | – | – |
| Sigourney | 48°F | 26°F | 2.34 | – |
| Pocahontas | 44°F | 24°F | 2.04 | 5.8 |
| Guttenberg | 45°F | 27°F | 1.98 | 3.7 |
| Columbus Junction | 48°F | 26°F | 2.33 | 5.3 |
| Leon | 50°F | 27°F | 2.29 | 4.9 |
| Mount Ayr | 49°F | 28°F | 2.16 | 2.6 |
| Guthrie Center | 48°F | 26°F | 1.88 | – |
| Oakland | 49°F | 27°F | 1.99 | 3.4 |
| Corning | 49°F | 27°F | 2.08 | 3.3 |
| Holstein | 45°F | 25°F | 1.99 | 5.3 |
| Bedford | 50°F | 28°F | 2.42 | – |
| Sanborn | 42°F | 22°F | 1.90 | 6.3 |
| Logan | 49°F | 26°F | 1.82 | 4.1 |
| Tripoli | 43°F | 24°F | 2.00 | – |
| Fayette | 42°F | 22°F | 2.06 | 5.4 |
| Elkader | 44°F | 22°F | 2.03 | 5.4 |
| Lake Park | 42°F | 22°F | 1.67 | 6.3 |
| Mapleton | 47°F | 24°F | 1.80 | 4.4 |
| Sidney | 51°F | 28°F | 1.85 | 2.3 |
| Keosauqua | 50°F | 29°F | 2.45 | 2.7 |
| Allison | 43°F | 24°F | 1.79 | – |
| Primghar | 46°F | 26°F | 1.70 | 6.2 |
| Donnellson | 51°F | 29°F | 2.56 | 3.0 |
| Colo | 45°F | 26°F | 2.01 | 4.5 |
| Lowden | 48°F | 27°F | 2.80 | 6.2 |
| Dakota City | 43°F | 24°F | 2.02 | – |
| Sioux Rapids | 43°F | 25°F | 1.76 | 6.5 |
| Coggon | 44°F | 24°F | 2.03 | – |
| Battle Creek | 45°F | 23°F | 1.78 | – |
| Swea City | 40°F | 21°F | 1.76 | 4.6 |
| Allerton | 49°F | 28°F | 2.38 | – |
| Little Sioux | 48°F | 24°F | 2.28 | 6.9 |
| Castana | 47°F | 26°F | 1.69 | 4.2 |
| Stanley | 43°F | 23°F | 2.02 | – |
| Rathbun | 50°F | 28°F | 2.03 | – |
| Beaconsfield | 48°F | 27°F | 2.19 | 3.5 |
| Des Moines Weather Office-Johnston | 49°F | 29°F | 2.15 | 5.0 |
| Sioux City Ang | 47°F | 24°F | 1.62 | – |
Source: NOAA NCEI nClimDiv statewide normals; NOAA NCEI 1991-2020 monthly normals for each station.