New Brunswick Climate by Month
New Brunswick, New Jersey, United States
Hot summers and cold winters, with rain spread through the year.
The climate in New Brunswick is one of hot summers and cold winters, with rain spread through the year. Afternoon highs range from 40°F (5°C) in January to 87°F (31°C) in July, and January nights average 24°F (-5°C). It gets 48 in (1217 mm) of rain a year, spread across the months.
- Warmest month
- 87°F(31°C)
- Average high, July
- Coldest nights
- 24°F(-5°C)
- Average low, January
- Rain per year
- 48 in(1217 mm)
- No clear rainy season
- Humidity
- 64%
- Sunniest: July
Best and worst months in New Brunswick
Best for weatherMay is the best time for weather in New Brunswick: highs near 74°F (23°C) and about 3.7 in (94 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 40°F (5°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
New Brunswick weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 40°F(5°C) | 24°F(-5°C) | 3.6 in(92 mm) | 65% | 1.8 |
| FebFebruary | 43°F(6°C) | 25°F(-4°C) | 2.8 in(72 mm) | 60% | 2.7 |
| MarMarch | 52°F(11°C) | 32°F(0°C) | 4.2 in(106 mm) | 56% | 3.7 |
| AprApril | 64°F(18°C) | 41°F(5°C) | 3.7 in(94 mm) | 59% | 4.6 |
| MayMayBest | 74°F(23°C) | 51°F(10°C) | 3.7 in(94 mm) | 63% | 5.3 |
| JunJune | 82°F(28°C) | 60°F(16°C) | 4.7 in(120 mm) | 65% | 5.7 |
| JulJuly | 87°F(31°C) | 65°F(19°C) | 5.0 in(128 mm) | 64% | 5.7 |
| AugAugust | 85°F(30°C) | 64°F(18°C) | 4.3 in(110 mm) | 68% | 5.0 |
| SepSeptember | 79°F(26°C) | 57°F(14°C) | 4.4 in(111 mm) | 69% | 4.0 |
| OctOctober | 67°F(20°C) | 45°F(7°C) | 3.9 in(100 mm) | 71% | 2.9 |
| NovNovember | 56°F(13°C) | 36°F(2°C) | 3.4 in(86 mm) | 66% | 2.0 |
| DecDecember | 45°F(7°C) | 29°F(-2°C) | 4.1 in(104 mm) | 67% | 1.6 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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