Last updated: June 24, 2025
In April, the average temperature in Pasadena Hills, United States hovers around 13°C (55°F). However, you might experience a wide range, with minimums dipping to -4°C (24°F) and maximums soaring to 30°C (87°F). Expect 129 mm (5.1 in) of precipitation spread over 11 days, and with an average humidity of 80%, it’s important to be prepared for both wet and warm conditions!
In April in Pasadena Hills, the average temperature is 13°C (55°F), with maximums reaching up to 30°C (87°F) and minimums falling as low as -4°C (24°F). This diverse temperature range suggests that travelers should be prepared for varying weather conditions while exploring Pasadena Hills.
In Pasadena Hills in April, the precipitation amount is 129 mm (5.1 in) spread over 11 days, indicating a wet period for the area.
In Pasadena Hills in April humidity is 80%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket wrapping around you, making any outdoor activity feel stifling and heavy, which can lead to fatigue for travelers unaccustomed to such moist conditions.
In Pasadena Hills in April, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Pasadena Hills.
UV Risk Categories
Weather in Pasadena Hills varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Pasadena Hills, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (32°F) | 76 mm (3.0 inches) | 82% | moderate |
| February Weather | 2°C (35°F) | 80 mm (3.2 inches) | 80% | moderate |
| March Weather | 8°C (47°F) | 131 mm (5.2 inches) | 80% | high |
| April Weather | 13°C (55°F) | 129 mm (5.1 inches) | 80% | very high |
| May Weather | 20°C (68°F) | 145 mm (5.7 inches) | 82% | very high |
| June Weather | 25°C (77°F) | 101 mm (4.0 inches) | 83% | extreme |
| July Weather | 26°C (80°F) | 97 mm (3.8 inches) | 81% | very high |
| August Weather | 25°C (76°F) | 130 mm (5.1 inches) | 80% | very high |
| September Weather | 22°C (73°F) | 56 mm (2.2 inches) | 76% | very high |
| October Weather | 15°C (59°F) | 105 mm (4.1 inches) | 76% | high |
| November Weather | 7°C (44°F) | 75 mm (2.9 inches) | 85% | moderate |
| December Weather | 4°C (39°F) | 59 mm (2.3 inches) | 86% | moderate |