Last updated: June 24, 2025
In Passaic, United States, the average temperature in April hovers around 11°C (52°F). Visitors can expect a range from a brisk -2°C (29°F) to a warm 29°C (84°F). The month sees approximately 116 mm (4.6 in) of precipitation spread over 13 days, contributing to an average humidity of 78%. Whether you're embracing the chill or enjoying the warmer days, be prepared for a diverse climate!
In April in Passaic, the average temperature is 11°C (52°F), with maximums reaching 29°C (84°F) and minimums dropping as low as -2°C (29°F). Travelers should be prepared for a wide range of temperatures, so pack accordingly to enjoy your visit.
In Passaic in April, the total precipitation amount reaches 116 mm (4.6 in) over the course of 13 days.
In Passaic in April humidity is 78%. With an average temperature of 11°C (52°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities somewhat uncomfortable and travel more challenging as you navigate the moist air.
In Passaic in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Passaic.
UV Risk Categories
Weather in Passaic varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Passaic, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (33°F) | 69 mm (2.7 inches) | 84% | moderate |
| February Weather | 2°C (36°F) | 103 mm (4.1 inches) | 82% | moderate |
| March Weather | 5°C (42°F) | 100 mm (3.9 inches) | 81% | high |
| April Weather | 11°C (52°F) | 116 mm (4.6 inches) | 78% | very high |
| May Weather | 17°C (62°F) | 123 mm (4.8 inches) | 69% | very high |
| June Weather | 22°C (72°F) | 97 mm (3.8 inches) | 69% | very high |
| July Weather | 25°C (78°F) | 146 mm (5.7 inches) | 62% | very high |
| August Weather | 24°C (76°F) | 129 mm (5.1 inches) | 65% | very high |
| September Weather | 21°C (70°F) | 100 mm (3.9 inches) | 68% | very high |
| October Weather | 15°C (60°F) | 134 mm (5.3 inches) | 74% | high |
| November Weather | 7°C (45°F) | 84 mm (3.3 inches) | 82% | moderate |
| December Weather | 3°C (38°F) | 108 mm (4.3 inches) | 80% | low |