The College of New Jersey, New Jersey Weather
Fireflies rise from the lawn. Day 76 of spring. Read this microseason across nine climate regions →
The College of New Jersey weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Mostly Clear——83°56°—
- ThursdayJun 4Overcast——88°56°+5°
- FridayJun 5Overcast——88°61°0°
- SaturdayJun 6Light Drizzle13%—91°68°+3°
- SundayJun 7Light Drizzle51%0.01″84°59°-7°
- MondayJun 8Overcast31%—76°55°-8°
- TuesdayJun 9Partly Cloudy13%—85°54°+9°
Ozone at AQI 51 now. AQI up 5 over the last 6 hours (gradual rise). With UV 7.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 53 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 51 now. With UV 7.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 53 by mid-afternoon.
- Present
- AQI 51
- UV peak
- 7.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 53
PM × Wind × Precip
PM2.5 at 5.2 µg/m³, PM10 at 6.6 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.79
- Wind
- light
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 2:50 AM
- Moonset
- 11:54 AM
- In sign
- ♑︎ Capricorn
Fireflies rise from the lawn
The College of New Jersey at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: April 18 (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 3, 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
The College of New Jersey's warmest month is July (~76°F mean) and its coldest is January (~31°F). Rainfall peaks in July (4.8 inches) and bottoms out in February (2.8 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 31° | 3.6″ | 7 |
| February | 33° | 2.8″ | 5 |
| March | 41° | 4.4″ | 8 |
| April | 52° | 3.6″ | 7 |
| May | 61° | 3.5″ | 7 |
| June | 71° | 4.7″ | 7 |
| July | 76° | 4.8″ | 6 |
| August | 74° | 4.3″ | 6 |
| September | 67° | 4.1″ | 7 |
| October | 55° | 4.0″ | 5 |
| November | 45° | 3.2″ | 6 |
| December | 35° | 4.3″ | 7 |
Regional context
The College of New Jersey 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: Trenton, NJ, Newark, NJ, Jersey City, NJ, Paterson, NJ, Elizabeth, NJ.
Frequently asked
- When does it freeze in The College of New Jersey?
- The College of New Jersey's last spring frost typically falls around mid-April, and the first fall frost arrives around mid-November.
- What is the rainy season in The College of New Jersey?
- July is the wettest month with about 4.8 inches of rain on average; the city receives roughly 47 inches annually.
- What is the warmest month in The College of New Jersey?
- July is typically warmest, averaging about 76°F.
- What is the coldest month in The College of New Jersey?
- January is typically coldest, averaging about 31°F.
- When can I start a vegetable garden in The College of New Jersey?
- 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 The College of New Jersey get?
- The College of New Jersey averages about 76 rainy days per year.
- What hardiness zone is The College of New Jersey?
- The College of New Jersey'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
The College of New Jersey, New Jersey sits in a warm-summer humid continental climate zone. January means hover near 31°F while July averages 76°F — a 45°F seasonal swing.
Across the year, The College of New Jersey receives about 47 inches of precipitation spread over roughly 76 rainy days.
The rhythm of the year is set by latitude (40.3°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.