Last updated: June 24, 2025
In March, the average temperature in Union City, United States hovers around 3°C (38°F). Expect a chill to bite with minimums plummeting to -13°C (9°F), while the mercury can rise to a maximum of 25°C (78°F) on warmer days. With 89 mm (3.5 in) of precipitation spread over 12 days, it’s a month where you might want to keep that umbrella handy. Plus, the air tends to be quite damp, boasting an average humidity of 86%.
In March in Union City, the average temperature is 3°C (38°F). Maximum temperatures can reach 25°C (78°F), while the minimum can drop as low as -13°C (9°F). Be prepared for a wide range of temperatures during your travels, ensuring you pack accordingly for both warm and cold conditions.
In Union City in March, the precipitation amount is 89 mm (3.5 in) during 12 days of rainfall.
In Union City in March humidity is 86%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that seeps through your layers, making traveling uncomfortable as breath clouds visibly in the crisp air.
In Union City in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Union City, you can refer to this Hourly UV Index in Union City.
UV Risk Categories
Weather in Union City varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Union City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 71 mm (2.8 inches) | 85% | moderate |
| February Weather | -2°C (28°F) | 75 mm (2.9 inches) | 85% | moderate |
| March Weather | 3°C (38°F) | 89 mm (3.5 inches) | 86% | high |
| April Weather | 8°C (48°F) | 97 mm (3.8 inches) | 87% | very high |
| May Weather | 16°C (61°F) | 142 mm (5.6 inches) | 81% | very high |
| June Weather | 22°C (71°F) | 115 mm (4.5 inches) | 82% | very high |
| July Weather | 24°C (75°F) | 120 mm (4.7 inches) | 81% | very high |
| August Weather | 22°C (72°F) | 75 mm (3.0 inches) | 79% | very high |
| September Weather | 19°C (66°F) | 86 mm (3.4 inches) | 78% | very high |
| October Weather | 12°C (54°F) | 131 mm (5.2 inches) | 81% | high |
| November Weather | 4°C (39°F) | 77 mm (3.0 inches) | 89% | moderate |
| December Weather | 0°C (33°F) | 60 mm (2.4 inches) | 86% | low |