Massachusetts weather in September: Statewide normals and every place, NOAA 1991-2020
In September, Massachusetts's statewide normal high is 73°F and normal low 52°F; normal highs run from 70°F in East Sandwich to 78°F in Maynard (NOAA 1991-2020 normals).
- Statewide normal high
- 73°FSeptember, 1991-2020
- Statewide normal low
- 52°FSeptember, 1991-2020
- Statewide normal precipitation
- 4.25 inSeptember
- Warmest place
- 78°Fnormal high, Maynard
- Coolest place
- 70°Fnormal high, East Sandwich
Where is Massachusetts warmest and wettest in September?
Maynard has the warmest September afternoons (78°F) and East Sandwich the coolest (70°F). Amherst gets the most precipitation (4.62 in) and Boston the least (3.56 in).
Statewide, September averaged 64.8°F in 2021, 62.4°F in 2022, 64.6°F in 2023, 63.0°F in 2024, 63.1°F in 2025, against a 1991-2020 normal of 62.4°F.
| Place | High | Low | Precip. | Snow |
|---|---|---|---|---|
| Boston | 73°F | 58°F | 3.56 | 0.0 |
| Worcester | 71°F | 53°F | 4.24 | 0.0 |
| Lowell | 76°F | 52°F | 3.89 | – |
| Brockton | 75°F | 54°F | 4.08 | 0.0 |
| New Bedford | 74°F | 52°F | 3.64 | – |
| Lawrence | 74°F | 54°F | 3.75 | – |
| Haverhill | 74°F | 51°F | 4.01 | 0.0 |
| Taunton | 75°F | 51°F | 4.35 | – |
| Barnstable | 71°F | 57°F | 3.83 | 0.0 |
| Beverly | 73°F | 53°F | 3.62 | – |
| Pittsfield | 70°F | 49°F | 4.50 | – |
| Fitchburg | 74°F | 51°F | 3.98 | – |
| Amherst | 74°F | 50°F | 4.62 | 0.0 |
| Westfield | 75°F | 51°F | 4.60 | – |
| Norwood | 77°F | 52°F | 3.82 | – |
| Bridgewater | 74°F | 50°F | 4.29 | – |
| Reading | 75°F | 53°F | 3.93 | 0.0 |
| Marblehead | 72°F | 53°F | 3.56 | 0.0 |
| Southbridge | 72°F | 51°F | 4.24 | 0.0 |
| Greenfield | 74°F | 50°F | 4.24 | – |
| North Adams | 72°F | 49°F | 4.22 | – |
| Nantucket | 70°F | 57°F | 3.59 | – |
| Maynard | 78°F | 49°F | 3.89 | – |
| Plymouth | 73°F | 53°F | 3.82 | – |
| Walpole | 74°F | 54°F | 3.71 | 0.0 |
| Hingham | 74°F | 55°F | 3.90 | 0.0 |
| Orange | 74°F | 51°F | 4.29 | – |
| East Sandwich | 70°F | 55°F | 3.90 | – |
| Vineyard Haven | 73°F | 52°F | 3.79 | – |
| Belchertown | 73°F | 52°F | 4.53 | 0.0 |
| Lenox | 72°F | 48°F | 4.48 | – |
| Chatham | 71°F | 58°F | 3.58 | – |
| Woods Hole | 73°F | 59°F | – | – |
| Edgartown | 74°F | 58°F | 3.89 | 0.0 |
| Barre | 75°F | 48°F | 4.37 | 0.0 |
| Ashburnham | 71°F | 51°F | 4.24 | 0.0 |
| Ashburnham N | 71°F | 49°F | 4.27 | – |
| Bedford | 74°F | 52°F | 3.72 | 0.0 |
| Bedford Hanscom Field | 76°F | 52°F | 3.54 | – |
| Birch Hill Dam | 73°F | 48°F | 4.27 | 0.0 |
| Blue Hill | 72°F | 55°F | 4.22 | 0.0 |
| Buffumville Lake | 74°F | 51°F | 4.07 | 0.0 |
| East Brimfield Lake | 72°F | 52°F | 4.07 | 0.0 |
| East Hawley | 68°F | 46°F | – | – |
| East Wareham | 73°F | 55°F | 4.54 | 0.0 |
| Groveland | 73°F | 52°F | 4.08 | 0.0 |
| Hyannis Barnstable Municipal Airport | 73°F | 56°F | 3.85 | – |
| Jamaica Plain | 76°F | 55°F | 3.96 | – |
| Leverett #2 | 74°F | 50°F | 4.69 | – |
| Middleboro | 74°F | 52°F | 4.17 | 0.0 |
| Middleton | 73°F | 52°F | 3.84 | 0.0 |
| NWS Boston/Norton | 74°F | 54°F | 4.16 | – |
| Natick | 73°F | 52°F | 4.21 | 0.0 |
| Norton W | 73°F | 52°F | 4.11 | 0.0 |
| Rochester | 74°F | 55°F | 4.36 | 0.0 |
| Rowe (3 mi NE) | 68°F | 48°F | 4.60 | – |
| Tully Lake | 75°F | 52°F | 4.34 | 0.0 |
| West Harwich | 71°F | 57°F | 3.93 | – |
| West Medway | 76°F | 51°F | 4.18 | 0.0 |
| Worthington | 71°F | 47°F | 4.78 | 0.0 |
Source: NOAA NCEI nClimDiv statewide normals; NOAA NCEI 1991-2020 monthly normals for each station.