Mercerville-Hamilton Square Climate by Month
Mercerville-Hamilton Square, New Jersey, United States
Hot summers and cold winters, with rain spread through the year.
The climate in Mercerville-Hamilton Square is one of hot summers and cold winters, with rain spread through the year. July is the warmest month, with highs around 88°F (31°C); January is the coolest at 41°F (5°C), and nights dip to 24°F (-4°C). About 46 in (1178 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 88°F(31°C)
- Average high, July
- Coldest nights
- 24°F(-4°C)
- Average low, January
- Rain per year
- 46 in(1178 mm)
- No clear rainy season
- Humidity
- 64%
- Sunniest: July
Best and worst months in Mercerville-Hamilton Square
Best for weatherMay is the best time for weather in Mercerville-Hamilton Square: highs near 75°F (24°C) and about 3.5 in (90 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 41°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)
Mercerville-Hamilton Square weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 41°F(5°C) | 24°F(-4°C) | 3.5 in(88 mm) | 63% | 1.8 |
| FebFebruary | 44°F(7°C) | 26°F(-4°C) | 2.8 in(71 mm) | 58% | 2.8 |
| MarMarch | 53°F(12°C) | 32°F(0°C) | 4.1 in(105 mm) | 54% | 3.6 |
| AprApril | 65°F(18°C) | 41°F(5°C) | 3.5 in(90 mm) | 58% | 4.6 |
| MayMayBest | 75°F(24°C) | 51°F(11°C) | 3.5 in(90 mm) | 61% | 5.4 |
| JunJune | 84°F(29°C) | 61°F(16°C) | 4.6 in(116 mm) | 67% | 5.7 |
| JulJuly | 88°F(31°C) | 66°F(19°C) | 4.6 in(118 mm) | 66% | 5.8 |
| AugAugust | 86°F(30°C) | 64°F(18°C) | 4.4 in(112 mm) | 67% | 5.1 |
| SepSeptember | 80°F(27°C) | 57°F(14°C) | 4.2 in(106 mm) | 68% | 4.1 |
| OctOctober | 68°F(20°C) | 45°F(7°C) | 3.8 in(97 mm) | 70% | 2.9 |
| NovNovember | 57°F(14°C) | 36°F(2°C) | 3.2 in(82 mm) | 65% | 2.1 |
| DecDecember | 46°F(8°C) | 29°F(-2°C) | 4.1 in(103 mm) | 66% | 1.6 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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