Last updated: June 24, 2025
In April, the average temperature in Markham, United States hovers around 9°C (49°F), with a range that can plummet to a chilly -7°C (19°F) or soar to a warm 29°C (85°F). Expect 122 mm (4.8 in) of precipitation over approximately 13 days, alongside an average humidity of a noteworthy 85%. Stay prepared for varied weather conditions!
In April in Markham, the average temperature is 9°C (49°F), with maximums reaching up to 29°C (85°F) and minimums dropping as low as -7°C (19°F). This wide range of temperatures makes it essential for travelers to pack accordingly to enjoy all that Markham has to offer.
In Markham in April, the precipitation amount is 122 mm (4.8 in) recorded over a span of 13 days.
In Markham in April humidity is 85%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making every step outside a challenge as the moisture in the air weighs heavily and lingers, transforming even simple outings into a quest for comfort.
In Markham 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 Markham.
UV Risk Categories
Weather in Markham varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Markham, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 66 mm (2.6 inches) | 82% | moderate |
| February Weather | -2°C (29°F) | 69 mm (2.7 inches) | 83% | moderate |
| March Weather | 4°C (40°F) | 96 mm (3.8 inches) | 84% | high |
| April Weather | 9°C (49°F) | 122 mm (4.8 inches) | 85% | very high |
| May Weather | 16°C (61°F) | 163 mm (6.4 inches) | 79% | very high |
| June Weather | 22°C (72°F) | 143 mm (5.6 inches) | 82% | very high |
| July Weather | 24°C (76°F) | 114 mm (4.5 inches) | 80% | very high |
| August Weather | 23°C (73°F) | 92 mm (3.6 inches) | 81% | very high |
| September Weather | 20°C (68°F) | 80 mm (3.1 inches) | 80% | very high |
| October Weather | 13°C (55°F) | 139 mm (5.5 inches) | 82% | high |
| November Weather | 4°C (40°F) | 63 mm (2.5 inches) | 88% | moderate |
| December Weather | 1°C (34°F) | 57 mm (2.2 inches) | 84% | low |