Colonia, New Jersey Weather
Honeysuckle sweetens the night. Day 89 of spring. Read this microseason across nine climate regions →
Colonia weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Drizzle92%0.05″77°65°—
- TuesdayJun 16Overcast——79°55°+2°
- WednesdayJun 17Heavy Drizzle42%—77°62°-2°
- ThursdayJun 18Thunderstorm39%—93°66°+16°
- FridayJun 19Overcast20%—83°67°-10°
- SaturdayJun 20Mostly Clear——79°60°-4°
- SundayJun 21Overcast——81°59°+2°
AQI 38 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 5.1 µg/m³, PM10 at 5.2 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 5.1 µg/m³, PM10 at 5.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.98
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- background
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).








































Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 6:36 AM
- Moonset
- 9:45 PM
- In sign
- ♋︎ Cancer
Honeysuckle sweetens the night
Colonia at a glance
- Today vs. normal: 8°F below the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Colonia
- Mon77°65°92%
- Tue79°55°0%
- Wed77°62°42%
- Thu93°66°39%
- Fri83°67°20%
- Sat79°60°7%
- Sun81°59°8%
- Mon77°63°35%
- Tue76°60°35%
- Wed84°61°11%
- Thu89°65°16%
- Fri94°68°30%
- Sat96°73°35%
- Sun88°71°24%
- Mon89°71°23%
- Tue97°73°35%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 16, 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.
Microseason · June 16–20
Honeysuckle sweetens the night
Japanese honeysuckle perfumes parks after dark.
Day 167 of 365 · Wedge 34 of 72
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
The year in Colonia tops out in July (~77°F) and dips lowest in January (~30°F), with December wettest at 4.2 inches and February driest at 3.0 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 30° | 3.4″ | 14 |
| February | 32° | 3.0″ | 13 |
| March | 41° | 3.7″ | 15 |
| April | 52° | 3.9″ | 17 |
| May | 61° | 3.7″ | 18 |
| June | 70° | 3.8″ | 17 |
| July | 77° | 3.5″ | 16 |
| August | 75° | 4.0″ | 17 |
| September | 69° | 3.6″ | 13 |
| October | 58° | 3.1″ | 11 |
| November | 44° | 3.7″ | 13 |
| December | 35° | 4.2″ | 13 |
Regional context
Colonia's climate, from NOAA NCEI 1991-2020 station normals, pairs 30°F Januarys with 77°F Julys — a 46°F swing. About 43.6 inches of precipitation falls over roughly 175 days a year.
No season owns Colonia's rain: December reaches 4.2 inches across 13.3 days and February keeps 3.0 inches on 12.5, an even spread through Colonia's year. That even rhythm groups Colonia with places like Iselin, NJ, Rahway, NJ and Avenel, NJ.
The cool-season window in Colonia starts at mid-April, when nights stop freezing — think peas, lettuce, spinach, and radishes. Hold Colonia's tender crops — tomatoes, peppers, basil — until 10-14 days past Colonia's last frost. It shuts near mid-November, when freezes return to Colonia and tender plants need cover. In Colonia, low spots run 4-7°F colder than nearby slopes, nudging Colonia's frost dates a week.
Similar climates: Iselin, NJ, Rahway, NJ, Avenel, NJ, Menlo Park Terrace, NJ, Fords, NJ.
Frequently asked
- When does it freeze in Colonia?
- Frost typically leaves Colonia by mid-April and returns to Colonia near mid-November.
- What is the rainy season in Colonia?
- December is the wettest month in Colonia, about 4.2 inches on average; the year totals roughly 44 inches.
- What is the warmest month in Colonia?
- On average July tops the year in Colonia at about 77°F.
- What is the coldest month in Colonia?
- The coldest stretch in Colonia falls in January, around 30°F on average.
- When can I start a vegetable garden in Colonia?
- Hardy spring crops go in near mid-April in Colonia; tender peppers and squash wait 10–14 days.
- How many rainy days does Colonia get?
- Colonia records around 175 days of measurable precipitation annually.
- What hardiness zone is Colonia?
- With January around 30°F, Colonia's zone reflects that minimum — the USDA ZIP map confirms Colonia's band.
- What is the 10-day forecast for Colonia?
- Colonia's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Colonia?
- See this week's day-by-day rain chances for Colonia in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Colonia?
- Current conditions for Colonia and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Colonia forecast updated?
- The Colonia forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Colonia?
- Day length in Colonia peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
- How accurate is the weather forecast for Colonia?
- The next few days in Colonia's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
In Colonia, New Jersey, the warm-summer humid continental climate runs from about 30°F in January to 77°F in July, a 47°F seasonal range.
Colonia sees close to 44 inches of precipitation annually, falling across some 175 wet days.
Colonia's 47°F range, set by its 40.6°N position, drives frost timing and what thrives in Colonia.
Beaches near Colonia
- Jacob Riis Beach23.1 mi
- Rockaway Beach Beach25.2 mi
Each linked page shows live water temperature, wave height, swim and surf verdicts, tides, and rip-current risk from NDBC + NOAA + NWS data.
ZIP codes in Colonia
- 07067