Illinois weather in March: Statewide normals and every place, NOAA 1991-2020
In March, Illinois's statewide normal high is 51°F and normal low 32°F; normal highs run from 44°F in Antioch to 61°F in Anna (NOAA 1991-2020 normals).
- Statewide normal high
- 51°FMarch, 1991-2020
- Statewide normal low
- 32°FMarch, 1991-2020
- Statewide normal precipitation
- 2.94 inMarch
- Warmest place
- 61°Fnormal high, Anna
- Coolest place
- 44°Fnormal high, Antioch
Where is Illinois warmest and wettest in March?
Anna has the warmest March afternoons (61°F) and Antioch the coolest (44°F). Rosiclare gets the most precipitation (5.08 in) and Wheeling the least (1.84 in). The most snow falls in Lake Villa (5.8 inches).
Statewide, March averaged 46.2°F in 2021, 43.1°F in 2022, 40.9°F in 2023, 46.9°F in 2024, 47.6°F in 2025, 48.5°F in 2026, against a 1991-2020 normal of 41.4°F.
| Place | High | Low | Precip. | Snow |
|---|---|---|---|---|
| Chicago | 47°F | 31°F | 2.45 | 5.5 |
| Aurora | 47°F | 29°F | 2.35 | 2.6 |
| Joliet | 47°F | 29°F | 2.27 | 2.1 |
| Rockford | 47°F | 28°F | 2.40 | 4.9 |
| Elgin | 46°F | 26°F | 2.37 | 3.7 |
| Springfield | 53°F | 33°F | 2.76 | 3.1 |
| Peoria | 51°F | 32°F | 2.69 | 3.3 |
| Champaign | 52°F | 31°F | 2.57 | – |
| Waukegan | 44°F | 27°F | – | – |
| Bloomington | 49°F | 29°F | 2.61 | – |
| Decatur | 52°F | 32°F | 2.51 | – |
| Wheaton | 50°F | 29°F | 2.46 | 4.5 |
| Normal | 50°F | 28°F | 2.61 | 2.2 |
| Moline | 50°F | 30°F | 2.62 | 4.4 |
| Crystal Lake | 47°F | 26°F | 2.51 | 4.4 |
| Romeoville | 49°F | 30°F | 2.71 | 4.2 |
| Belleville | 59°F | 36°F | 3.44 | 1.0 |
| DeKalb | 45°F | 27°F | 2.24 | 4.4 |
| Quincy | 52°F | 32°F | 2.29 | – |
| Streamwood | 48°F | 25°F | 2.09 | 4.8 |
| Wheeling | 47°F | 30°F | 1.84 | – |
| Rock Island | 48°F | 28°F | 2.62 | – |
| Mundelein | 44°F | 26°F | 2.49 | 5.3 |
| Galesburg | 48°F | 28°F | 2.39 | 2.3 |
| Burbank | 48°F | 32°F | 2.66 | 5.7 |
| Danville | 52°F | 32°F | 3.23 | – |
| West Chicago | 47°F | 28°F | 1.97 | – |
| Alton | 54°F | 35°F | 3.46 | – |
| Lisle | 47°F | 26°F | 2.36 | – |
| Kankakee | 49°F | 29°F | 2.49 | 3.0 |
| Freeport | 45°F | 26°F | 2.15 | 3.8 |
| Carbondale | 57°F | 36°F | 4.14 | – |
| Park Forest | 46°F | 28°F | 2.65 | 4.9 |
| Ottawa | 48°F | 29°F | 2.29 | 3.3 |
| Jacksonville | 52°F | 30°F | 3.04 | – |
| Charleston | 54°F | 34°F | 3.11 | 1.3 |
| Cahokia Heights | 56°F | 36°F | 3.27 | – |
| Mattoon | 52°F | 33°F | 2.22 | – |
| Dixon | 46°F | 28°F | 2.63 | 4.5 |
| Antioch | 44°F | 27°F | – | – |
| Morris | 48°F | 29°F | 2.23 | 2.9 |
| Channahon | 48°F | 30°F | 2.15 | 0.4 |
| Mount Vernon | 54°F | 34°F | 4.00 | 1.0 |
| Lincoln | 52°F | 31°F | 2.70 | 1.8 |
| Effingham | 54°F | 32°F | 3.30 | 1.5 |
| Streator | 49°F | 29°F | 2.78 | 3.7 |
| Rantoul | 51°F | 29°F | 2.58 | – |
| Kewanee | 48°F | 27°F | 2.62 | 3.2 |
| Pontiac | 49°F | 30°F | 2.62 | 3.4 |
| Barrington | 45°F | 27°F | 2.35 | 4.6 |
| Peru | 48°F | 27°F | 2.28 | 4.0 |
| Rochelle | 45°F | 26°F | 2.27 | – |
| Lake Villa | 45°F | 27°F | 2.64 | 5.8 |
| Monmouth | 50°F | 29°F | 2.61 | 3.3 |
| Olney | 53°F | 32°F | 4.21 | 1.1 |
| Jerseyville | 53°F | 32°F | 3.17 | 1.6 |
| Paris | 50°F | 29°F | 3.00 | 2.0 |
| Harrisburg | 58°F | 36°F | 4.90 | – |
| Marengo | 45°F | 26°F | 2.08 | 2.4 |
| Princeton | 48°F | 28°F | 2.52 | 3.7 |
| Vandalia | 53°F | 33°F | 3.32 | – |
| Robinson | 53°F | 33°F | 3.64 | – |
| Salem | 54°F | 33°F | 3.73 | 0.2 |
| Mount Carmel | 55°F | 36°F | 4.06 | 1.2 |
| Benton | 55°F | 37°F | – | – |
| Geneseo | 49°F | 29°F | 2.70 | 2.8 |
| Hillsboro | 55°F | 34°F | 3.05 | – |
| Du Quoin | 56°F | 36°F | 4.39 | 0.7 |
| Carlinville | 52°F | 32°F | 2.90 | 2.3 |
| Pana | 53°F | 31°F | 3.02 | 2.6 |
| Fairfield | 57°F | 36°F | 4.22 | – |
| Marseilles | 48°F | 27°F | 2.54 | 2.9 |
| Hoopeston | 50°F | 31°F | 2.82 | 2.2 |
| Carmi | 56°F | 33°F | 4.37 | 1.8 |
| Tuscola | 50°F | 31°F | 2.87 | 2.2 |
| Flora | 55°F | 33°F | 3.83 | 0.8 |
| Shelbyville | 52°F | 32°F | 2.71 | – |
| Watseka | 50°F | 29°F | 2.42 | 1.6 |
| Paxton | 49°F | 29°F | 2.61 | 2.1 |
| Lawrenceville | 55°F | 35°F | 3.16 | – |
| Sullivan | 51°F | 31°F | 2.83 | 1.0 |
| Anna | 61°F | 37°F | 4.82 | 0.9 |
| Pittsfield | 53°F | 32°F | 2.95 | 1.7 |
| Sparta | 56°F | 33°F | 3.95 | 0.6 |
| Dwight | 48°F | 27°F | 2.55 | 3.5 |
| Morrison | 46°F | 27°F | 2.53 | 3.6 |
| Fulton | 46°F | 28°F | 2.41 | – |
| Aledo | 49°F | 27°F | 2.52 | 3.0 |
| Gibson City | 48°F | 29°F | 2.74 | 1.4 |
| Carlyle | 55°F | 35°F | 3.67 | – |
| Galena | 45°F | 24°F | 2.25 | 5.1 |
| Virden | 54°F | 34°F | 2.54 | 2.3 |
| Nashville | 54°F | 34°F | 3.47 | 1.2 |
| Rushville | 50°F | 31°F | 2.60 | – |
| Knoxville | 49°F | 29°F | 2.64 | 3.4 |
| Havana | 51°F | 30°F | 2.72 | 3.2 |
| Newton | 53°F | 34°F | 3.73 | 2.1 |
| McLeansboro | 56°F | 34°F | 4.53 | 2.1 |
| Galva | 48°F | 27°F | 2.35 | – |
| Casey | 53°F | 32°F | 3.34 | 1.4 |
| Polo | 48°F | 28°F | 2.79 | – |
| White Hall | 52°F | 32°F | 2.91 | 1.8 |
| Petersburg | 51°F | 30°F | 2.51 | 1.4 |
| Mason City | 51°F | 30°F | 2.49 | 1.7 |
| Athens | 52°F | 30°F | 2.67 | – |
| Minonk | 50°F | 29°F | 2.51 | 3.2 |
| Albion | 55°F | 36°F | – | – |
| Lacon | 51°F | 31°F | 2.65 | 3.2 |
| Princeville | 50°F | 28°F | 2.42 | 2.0 |
| Chenoa | 49°F | 29°F | 2.68 | 2.3 |
| Stockton | 45°F | 27°F | 2.20 | 4.9 |
| Cairo | 59°F | 38°F | 4.85 | – |
| Winchester | 53°F | 31°F | 3.06 | – |
| Grayville | 56°F | 35°F | 4.59 | 0.2 |
| Mount Carroll | 48°F | 26°F | 2.51 | 3.6 |
| Neoga | 53°F | 32°F | 2.65 | – |
| Walnut | 47°F | 28°F | 2.22 | 4.7 |
| Palestine | 54°F | 35°F | 3.58 | 1.1 |
| La Harpe | 49°F | 29°F | 2.42 | – |
| Windsor | 51°F | 32°F | 3.11 | 1.4 |
| Morrisonville | 52°F | 32°F | 2.73 | 2.4 |
| Rosiclare | 56°F | 33°F | 5.08 | 0.2 |
| Ramsey | 51°F | 31°F | 3.11 | 1.6 |
| Shabbona | 46°F | 27°F | 2.48 | – |
| Paw Paw | 45°F | 26°F | 2.19 | 3.6 |
| Hennepin | 50°F | 30°F | 2.46 | – |
| Piper City | 52°F | 28°F | 2.97 | 3.3 |
| Ogden | 51°F | 30°F | 2.82 | 3.0 |
| Brookport | 58°F | 36°F | 4.63 | 0.1 |
| Elizabeth | 46°F | 25°F | 2.33 | 3.5 |
| Brownstown | 52°F | 35°F | 3.17 | – |
| Avon | 48°F | 26°F | 2.38 | 2.7 |
| Golden | 51°F | 30°F | – | – |
| New Boston | 49°F | 30°F | 2.62 | – |
| Congerville | 50°F | 31°F | 2.44 | 2.8 |
| Sidell | 49°F | 30°F | 2.77 | 2.4 |
| Altona | 48°F | 27°F | 2.58 | – |
| Prairie City | 51°F | 29°F | 2.68 | 2.5 |
| Perry | 53°F | 31°F | 2.57 | 2.4 |
| Compton | 46°F | 26°F | – | – |
| Gladstone | 49°F | 30°F | 2.35 | 1.8 |
| Bentley | 51°F | 32°F | 2.57 | 2.1 |
| Kaskaskia | 56°F | 35°F | 3.41 | 0.1 |
| Illinois City | 48°F | 30°F | 2.29 | – |
| Cahokia | 56°F | 35°F | 3.55 | 1.2 |
| Chicago Aurora Municipal Airport | 48°F | 28°F | 2.21 | – |
| Chicago Botanic Garden | 46°F | 28°F | 2.26 | 5.6 |
| Chicago Midway Airport | 48°F | 32°F | 1.88 | – |
| Chicago Waukegan Regional Airport | 44°F | 27°F | 2.22 | – |
| Dixon Springs Agricultural Center | 59°F | 37°F | 4.66 | 0.6 |
| Grand Chain Dam 53 | 57°F | 37°F | 4.77 | 0.7 |
| Iuka (12 mi SW) | 54°F | 33°F | 3.90 | 0.5 |
| Little Red School House | 49°F | 28°F | 2.50 | – |
| McHenry W.G. Stratton Lock and Dam | 46°F | 26°F | 2.21 | 3.9 |
| Rend Lake Dam | 55°F | 35°F | 4.21 | – |
| Smithland Lock and Dam | 57°F | 37°F | 4.78 | 0.4 |
Source: NOAA NCEI nClimDiv statewide normals; NOAA NCEI 1991-2020 monthly normals for each station.