Marlborough, MA
Climate overview — based on NOAA 1991-2020 normals from MAYNARD 2, MA US.
Year-round temperatures (°F)
Climate summary
Marlborough has an annual average temperature of 49.9°F with about 49.7 inches of precipitation per year. The warmest month is July (average high 86.9°F), and the coldest is January (average low 14.6°F). October is typically the wettest month (5.07 in) and February the driest (3.30 in).
Best time to visit Marlborough
Full guide →Climate change signal
All-time records →24 of 366 (6.6%) of Marlborough's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1960s | 40 | |
| 1970s | 47 | |
| 1980s | 78 | |
| 1990s | 67 | |
| 2000s | 73 | |
| 2010s | 61 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 37.4°F | 14.6°F | 26.0°F | 3.58 in | — | 11 |
| February | 40.6°F | 15.9°F | 28.2°F | 3.30 in | — | 9 |
| March | 48.5°F | 23.8°F | 36.2°F | 4.59 in | — | 12 |
| April | 61.6°F | 33.8°F | 47.7°F | 4.36 in | — | 12 |
| May | 73.0°F | 45.3°F | 59.2°F | 3.67 in | — | 13 |
| June | 81.1°F | 54.6°F | 67.9°F | 4.16 in | — | 11 |
| July | 86.9°F | 60.2°F | 73.5°F | 4.04 in | — | 10 |
| August | 84.9°F | 58.0°F | 71.5°F | 4.43 in | — | 10 |
| September | 77.5°F | 49.4°F | 63.5°F | 3.89 in | — | 10 |
| October | 65.5°F | 38.0°F | 51.7°F | 5.07 in | — | 10 |
| November | 53.6°F | 28.7°F | 41.2°F | 3.76 in | — | 11 |
| December | 42.8°F | 20.6°F | 31.7°F | 4.85 in | — | 11 |
Climate twins of Marlborough
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).