New Brunswick, New Jersey Weather History

New Jersey, United States  •  45 yrs data 📍 40.4843°N, 74.4428°W
°F / °C
☀️

Quick Climate Facts

(1981 – 2025)
Hottest Month
🔥
Jul
Avg 75.3°F
Min 57.3°F
Max 93.4°F
Coldest Month
❄️
Jan
Avg 31.1°F
Min 7.1°F
Max 55.2°F
Wettest Month
🌧️
Jul
120 mm
Driest Month
🏜️
Feb
76 mm
Most Humid
💧
Jan
85%
Least Humid
🌬️
Aug
73%
Highest Ever
🌡️
102°F
Jul 1999
Lowest Ever
🧊
-9.5°F
Jan 1994
Monthly Climate Data
Month 🌤️ High Low Avg Humid % Rain (mm) Wind (m/s) Solar (kWh/m²)

Showing average climate conditions across 45 years (1981–2025)

🌍 Weather in New Brunswick Across Seasons

❄️ Winter in New Brunswick

January is New Brunswick's coldest month, with average lows reaching 7.2°F.
🌡️ December to February (avg)  ·  10.6°F56.8°F

🧥 Pack heavy layers and prepare for snow — this is a Severe Winter destination.

☀️ Summer in New Brunswick

Summer temperatures in New Brunswick peak in July, climbing to 93.4°F.
🌡️ June to August (avg)  ·  53.8°F91.6°F

🌤️ Early mornings and evenings are most comfortable during this Hot Summer season.

🌧️ Rainy Season in New Brunswick

New Brunswick sees its highest rainfall in July, receiving approximately 120 mm of precipitation.
🌧️ May to August (avg)  ·  up to 120 mm

☔ Moderate Rainfall expected — carry rain gear and plan outdoor activities around these months.

📅 Monthly Averages

🌡️ Temperature Patterns

Monthly averages · 1981–2025 climate normals · °F

🌡️ New Brunswick Monthly Temperature Guide

Jul is the hottest month in New Brunswick, with average highs reaching 93.4°F, while Jan is the coldest with lows dropping to 7.1°F.

Temperatures rise steadily from spring, peak in Jul, and gradually decline through fall into winter.

These seasonal patterns make summer ideal for outdoor activities, while winters bring freezing conditions and heavy snowfall.

🌧️ Rainfall Distribution

Monthly rainfall · 1981–2025 seasonal trends · mm/month

💨 Humidity & Wind Speed

Monthly averages · 1981–2025

💧 Rainfall & Humidity in New Brunswick

New Brunswick receives its highest rainfall in Jul, while humidity peaks during winter months.
🌧️ Wettest: Jul — 120 mm ☀️ Driest: Feb — 76 mm

💧 Humidity peaks at 85% in Jan · annual avg 79%

🌍 Climate Summary

Avg Annual Temp:53.6°F
Avg Annual Rainfall:1204 mm
Avg Humidity:79%
Data Period:1981 – 2025

New Brunswick Climate Overview

New Brunswick has a warm temperate climate with warm summers and freezing winters.

Temperatures peak in Jul and drop to their lowest in Jan, while rainfall is highest during summer months.

Humidity remains high throughout the year, especially during winter months, creating cold and damp conditions.

📈 Yearly Trends

The warmest year in New Brunswick's recorded history was 2012 (avg: 57.4°F), while the coldest year was 1984 (avg: 50.2°F), based on annual average temperatures.

📊 Key Climate Trends

🌡️ Annual Temperature Trend

View Range:

Average annual high/low · Last 10 years · °F

New Brunswick's temperatures has remained relatively stable over the past decade. The highest recorded temperature reached 102°F in Jul 1999, while the lowest dropped to -9.5°F in Jan 1994.

🌧️ Annual Precipitation

View Range:

Total annual precipitation · Last 10 years · mm/year

Annual rainfall in New Brunswick shows noticeable variation. Rainfall has decreased in recent years compared to earlier periods.
📋 Yearly Climate Data Overview

🔥 hottest  ·  ❄️ coldest  ·  🌧️ wettest

Year Min Temp Avg Temp Max Temp Rainfall (mm) Avg Humidity Avg Wind

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❓ Frequently Asked Questions

What is the hottest month in New Brunswick?
Based on 45 years of data (1981–2025), Jul is typically the hottest month in New Brunswick, New Jersey, with average high temperatures around 93.4°F.
What is the coldest month in New Brunswick?
Jan is the coldest month in New Brunswick, with average low temperatures around 7.1°F.
What is the rainiest month in New Brunswick?
Jul receives the most rainfall with approximately 120 mm, while Feb is the driest with 76 mm.
What was the highest temperature ever recorded in New Brunswick?
The highest recorded temperature was 102°F in Jul 1999. This is part of the historical record spanning 1981–2025.
What was the lowest temperature ever recorded in New Brunswick?
The lowest recorded temperature was -9.5°F in Jan 1994.
How many years of data does this page cover?
This page covers 45 years of climate data from 1981 to 2025. As new data is added to the database the page automatically reflects the updated coverage.
How much sunlight does New Brunswick get?
New Brunswick receives the most sunlight in Jun with an average solar radiation of 5.97 kWh/m²/day. This solar radiation data, sourced from NASA POWER, is useful for solar energy planning, agriculture, and understanding seasonal sunshine availability in New Jersey.
Where does this weather data come from?
All climate data is sourced from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite and model data. It provides monthly averages for temperature, precipitation, humidity, wind speed, and solar radiation.

📚 Data Source

All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources), a NASA project providing solar and meteorological data for renewable energy, building efficiency, and agricultural research.

Parameters included:
  • Temperature (Min, Max)
  • Precipitation
  • Relative Humidity
  • Wind Speed
  • Solar Radiation
Data specifications:
  • Resolution: Monthly
  • Spatial: 0.5° × 0.625°
  • Source: MERRA-2
  • Coverage: 1981–2025
  • Years: 45