Last updated: June 24, 2025
In April, the average temperature in Grand Junction, United States hovers around 9°C (49°F). Temperatures can swing dramatically, ranging from a chilly -11°C (12°F) to a warm 31°C (88°F). Expect about 66 mm (2.6 in) of precipitation spread over 9 days, with an average humidity level of 77%, creating a uniquely vibrant atmosphere throughout the month.
In April in Grand Junction, the average temperature is 9°C (49°F), with maximums reaching 31°C (88°F) and minimums dipping as low as -11°C (12°F). Be prepared for a wide range of temperatures when traveling to Grand Junction this month.
In Grand Junction in April, the precipitation amount is 66 mm (2.6 in) over the course of 9 days.
In Grand Junction in April humidity is 77%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making outdoor explorations feel colder and more uncomfortable than the thermometer suggests.
In Grand Junction 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 Grand Junction.
UV Risk Categories
Weather in Grand Junction varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Grand Junction, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (22°F) | 32 mm (1.3 inches) | 78% | moderate |
| February Weather | -5°C (23°F) | 39 mm (1.5 inches) | 80% | moderate |
| March Weather | 4°C (39°F) | 76 mm (3.0 inches) | 77% | moderate |
| April Weather | 9°C (49°F) | 66 mm (2.6 inches) | 77% | very high |
| May Weather | 17°C (62°F) | 163 mm (6.4 inches) | 77% | very high |
| June Weather | 23°C (74°F) | 101 mm (4.0 inches) | 81% | extreme |
| July Weather | 25°C (77°F) | 84 mm (3.3 inches) | 81% | very high |
| August Weather | 23°C (74°F) | 90 mm (3.5 inches) | 77% | very high |
| September Weather | 20°C (68°F) | 108 mm (4.2 inches) | 73% | very high |
| October Weather | 11°C (52°F) | 122 mm (4.8 inches) | 75% | high |
| November Weather | 3°C (38°F) | 36 mm (1.4 inches) | 85% | moderate |
| December Weather | -1°C (30°F) | 37 mm (1.4 inches) | 83% | moderate |