Milbridge, Maine Weather
Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →
Milbridge weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——79°46°—
- FridayJun 5Overcast14%—77°56°-2°
- SaturdayJun 6Drizzle47%0.06″57°51°-20°
- SundayJun 7Light Showers65%0.41″68°48°+11°
- MondayJun 8Overcast17%—66°50°-2°
- TuesdayJun 9Overcast——76°49°+10°
- WednesdayJun 10Overcast——77°53°+1°
PM2.5 at 9.3 µg/m³ (AQI 51) with a 0.65 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust. AQI flat over the last 6 hours (within ±3 points).
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 41 now. With UV 1.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10 by mid-afternoon.
- Present
- AQI 41
- UV peak
- 1.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 9.3 µg/m³ (AQI 51) with a 0.65 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.65
- Wind
- calm
- 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
- 3:15 AM
- Moonset
- 12:13 PM
- In sign
- ♑︎ Capricorn
Fireflies rise from the lawn
Milbridge at a glance
- Today vs. normal: 15°F below the seasonal normal for this latitude
- Last frost: May 13 (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.
SPC Convective Outlook
Storm Prediction Center — Milbridge
SPC has placed Milbridge in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | — | — |
| May | lettuce, peas, spinach, radishes | lettuce, peas, radishes |
| June | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | tomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | — | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Milbridge's warmest month is July (~66°F mean) and its coldest is January (~19°F). Rainfall peaks in December (5.9 inches) and bottoms out in July (3.4 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 19° | 4.3″ | 7 |
| February | 22° | 3.8″ | 6 |
| March | 31° | 4.6″ | 8 |
| April | 42° | 4.3″ | 8 |
| May | 52° | 3.9″ | 7 |
| June | 60° | 3.5″ | 7 |
| July | 66° | 3.4″ | 6 |
| August | 66° | 3.6″ | 5 |
| September | 59° | 3.5″ | 6 |
| October | 48° | 5.0″ | 7 |
| November | 38° | 5.1″ | 7 |
| December | 27° | 5.9″ | 7 |
Regional context
Milbridge's climate, per the NOAA NCEI 1991-2020 normals from the nearest reporting station, runs cold-winter and warm-summer. January means hover near 19°F while July climbs to 66°F — a 47°F seasonal swing typical of northern-tier latitudes. Annual precipitation totals about 50.8 inches spread across roughly 81 days with measurable rain or snow.
Rainfall stays relatively even across the calendar: December tops out at 5.9 inches across 7.2 days with measurable rain, and July settles around 3.4 inches across 6.2 rainy days — a comparatively narrow seasonal range. That even-rainfall rhythm puts Milbridge alongside places like Jonesport, ME, Northeast Harbor, ME and Ellsworth, ME — places without a single dominant storm season, where moisture arrives steadily across the calendar.
The frost-sensitive growing window opens around late-May, when overnight lows reliably clear freezing for cool-season crops like kale, peas, spinach, and parsnips. Heat-loving transplants like tomatoes, peppers, and squash generally hold off for another 10-14 days to clear the last spring frost risk window. The window closes around early-October, when overnight lows resume dipping below freezing and frost-tender plants need protection or harvest. These dates represent 30-year central tendencies; actual year-to-year variation can shift either bookend by 7-14 days, and local microclimate features within Milbridge — cold-air drainage on calm clear nights, slope aspect, distance from any nearby lake or river — can push the practical frost window earlier or later than the regional average.
Similar climates: Jonesport, ME, Northeast Harbor, ME, Ellsworth, ME, Bradley, ME, Brewer, ME.
Frequently asked
- When does it freeze in Milbridge?
- Milbridge's last spring frost typically falls around mid-May, and the first fall frost arrives around mid-October.
- What is the rainy season in Milbridge?
- December is the wettest month with about 5.9 inches of rain on average; the city receives roughly 51 inches annually.
- What is the warmest month in Milbridge?
- July is typically warmest, averaging about 66°F.
- What is the coldest month in Milbridge?
- January is typically coldest, averaging about 19°F.
- When can I start a vegetable garden in Milbridge?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-May); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Milbridge get?
- Milbridge averages about 81 rainy days per year.
- What hardiness zone is Milbridge?
- Milbridge'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
Milbridge, Maine sits in a warm-summer humid continental climate zone. January means hover near 19°F while July averages 66°F — a 47°F seasonal swing.
Across the year, Milbridge receives about 51 inches of precipitation spread over roughly 81 rainy days.
The rhythm of the year is set by latitude (44.5°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.