Last updated: June 24, 2025
In Merrimac, United States, the average temperature for April hovers around 8°C (47°F), with a minimum drop to -3°C (27°F) and a potential peak of 28°C (82°F). Expect 131 mm (5.2 in) of precipitation over 13 days, contributing to a notably high average humidity of 80%. Whether you’re exploring the outdoors or cozying up indoors, be prepared for a mix of conditions!
In April in Merrimac, the average temperature is 8°C (47°F). The maximum can reach 28°C (82°F), while the minimum can drop as low as -3°C (27°F). This variability in temperatures makes it essential for travelers to pack layers and be prepared for both warm and chilly conditions.
In Merrimac in April, the precipitation amount is 131 mm (5.2 in) over the course of 13 days.
In Merrimac in April, humidity is 80%. With an average temperature of 8°C (47°F), this humidity feels like you're walking through a heavy mist, making your clothes cling to your skin and every step prone to a shiver, which can be quite uncomfortable for traveling.
In Merrimac 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 Merrimac.
UV Risk Categories
Weather in Merrimac varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Merrimac, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 71 mm (2.8 inches) | 86% | low |
| February Weather | 0°C (32°F) | 89 mm (3.5 inches) | 84% | moderate |
| March Weather | 3°C (37°F) | 87 mm (3.4 inches) | 82% | moderate |
| April Weather | 8°C (47°F) | 131 mm (5.2 inches) | 80% | very high |
| May Weather | 14°C (58°F) | 83 mm (3.3 inches) | 72% | very high |
| June Weather | 20°C (68°F) | 88 mm (3.5 inches) | 72% | very high |
| July Weather | 23°C (73°F) | 127 mm (5.0 inches) | 67% | very high |
| August Weather | 23°C (73°F) | 70 mm (2.8 inches) | 66% | very high |
| September Weather | 19°C (66°F) | 74 mm (2.9 inches) | 71% | high |
| October Weather | 13°C (56°F) | 131 mm (5.1 inches) | 78% | high |
| November Weather | 6°C (43°F) | 98 mm (3.9 inches) | 84% | moderate |
| December Weather | 1°C (34°F) | 121 mm (4.8 inches) | 81% | low |