Perth Amboy Climate by Month
Perth Amboy, New Jersey, United States
Hot summers and cold winters, with rain spread through the year.
Hot summers and cold winters, with rain spread through the year: that's Perth Amboy's climate in short. Afternoon highs range from 40°F (5°C) in January to 86°F (30°C) in July, and January nights average 24°F (-4°C). It gets 48 in (1225 mm) of rain a year, spread across the months.
- Warmest month
- 86°F(30°C)
- Average high, July
- Coldest nights
- 24°F(-4°C)
- Average low, January
- Rain per year
- 48 in(1225 mm)
- No clear rainy season
- Humidity
- 65%
- Sunniest: July
Best and worst months in Perth Amboy
Best for weatherMay and September are the best time for weather in Perth Amboy: highs near 75°F (24°C) and about 4.0 in (101 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)
Perth Amboy weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 40°F(5°C) | 24°F(-4°C) | 3.6 in(92 mm) | 65% | 1.8 |
| FebFebruary | 43°F(6°C) | 26°F(-4°C) | 2.9 in(74 mm) | 59% | 2.7 |
| MarMarch | 51°F(11°C) | 32°F(0°C) | 4.2 in(107 mm) | 56% | 3.7 |
| AprApril | 63°F(17°C) | 42°F(5°C) | 3.7 in(94 mm) | 60% | 4.6 |
| MayMayBest | 73°F(23°C) | 51°F(11°C) | 3.7 in(93 mm) | 64% | 5.3 |
| JunJune | 82°F(28°C) | 61°F(16°C) | 4.7 in(120 mm) | 65% | 5.7 |
| JulJuly | 86°F(30°C) | 66°F(19°C) | 5.0 in(128 mm) | 68% | 5.7 |
| AugAugust | 85°F(29°C) | 65°F(18°C) | 4.4 in(113 mm) | 68% | 5.0 |
| SepSeptemberBest | 78°F(26°C) | 58°F(14°C) | 4.3 in(109 mm) | 73% | 4.0 |
| OctOctober | 67°F(19°C) | 46°F(8°C) | 4.1 in(104 mm) | 71% | 2.9 |
| NovNovember | 55°F(13°C) | 37°F(3°C) | 3.5 in(88 mm) | 66% | 2.0 |
| DecDecember | 45°F(7°C) | 29°F(-2°C) | 4.1 in(103 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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