Smith Mills, Massachusetts Weather
Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →
Smith Mills weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——78°44°—
- ThursdayJun 4Overcast——80°56°+2°
- FridayJun 5Overcast——86°54°+6°
- SaturdayJun 6Overcast20%—84°60°-2°
- SundayJun 7Light Rain68%0.08″85°56°+1°
- MondayJun 8Overcast23%—71°53°-14°
- TuesdayJun 9Overcast15%—79°51°+8°
Ozone at AQI 63 now. AQI up 28 in the last 6 hours — air quality is degrading. With UV 0.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 15 by mid-afternoon.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 63 now. With UV 0.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 15 by mid-afternoon.
- Present
- AQI 63
- UV peak
- 0.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 15
PM × Wind × Precip
PM2.5 at 7.2 µg/m³ (AQI 40) with a 0.72 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.72
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 3:16 AM
- Moonset
- 12:37 PM
- In sign
- ♑︎ Capricorn
Fireflies rise from the lawn
Smith Mills at a glance
- Today vs. normal: 13°F below the seasonal normal for this latitude
- Last frost: April 26 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Smith Mills's warmest month is July (~72°F mean) and its coldest is January (~30°F). Rainfall peaks in March (4.8 inches) and bottoms out in July (3.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 30° | 3.7″ | 7 |
| February | 31° | 3.0″ | 6 |
| March | 38° | 4.8″ | 7 |
| April | 47° | 4.0″ | 7 |
| May | 57° | 3.3″ | 7 |
| June | 66° | 3.6″ | 7 |
| July | 72° | 3.0″ | 6 |
| August | 71° | 3.8″ | 6 |
| September | 63° | 3.6″ | 6 |
| October | 53° | 4.6″ | 7 |
| November | 43° | 4.3″ | 7 |
| December | 35° | 4.1″ | 7 |
Regional context
Smith Mills sits within a warm-summer humid continental climate region — a cohort that shares similar temperature ranges, seasonal patterns, and growing conditions across nearby cities.
Similar climates: Boston, MA, Worcester, MA, Springfield, MA, New Bedford, MA, Cambridge, MA.
Frequently asked
- When does it freeze in Smith Mills?
- Smith Mills's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in Smith Mills?
- March is the wettest month with about 4.8 inches of rain on average; the city receives roughly 46 inches annually.
- What is the warmest month in Smith Mills?
- July is typically warmest, averaging about 72°F.
- What is the coldest month in Smith Mills?
- January is typically coldest, averaging about 30°F.
- When can I start a vegetable garden in Smith Mills?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-April); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Smith Mills get?
- Smith Mills averages about 78 rainy days per year.
- What hardiness zone is Smith Mills?
- Smith Mills's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Smith Mills, Massachusetts sits in a warm-summer humid continental climate zone. January means hover near 30°F while July averages 72°F — a 42°F seasonal swing.
Across the year, Smith Mills receives about 46 inches of precipitation spread over roughly 78 rainy days.
The rhythm of the year is set by latitude (41.6°N), proximity to large water bodies, and elevation — all of which shape what grows here, when frost is likely, and what the weather story looks like day to day.