Last updated: June 24, 2025
In June, the average temperature in New Castle, United States reaches a comfortable 23°C (74°F), with temperatures ranging from a refreshing 10°C (50°F) to a warm 35°C (95°F). Visitors should be prepared for some rain, as the area receives an average precipitation of 118 mm (4.7 in) over 12 days. Expect a lush atmosphere with an average humidity of 79%.
In June in New Castle, the average temperature is 23°C (74°F). Maximums can reach 35°C (95°F), while minimums can drop to as low as 10°C (50°F). Be prepared for warm days and cooler nights while enjoying all that New Castle has to offer!
In New Castle in June, the total precipitation amount is 118 mm (4.7 in) over the course of 12 days.
In New Castle in June, humidity is 79%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities a bit less comfortable, urging travelers to seek shade and hydration throughout the day.
In New Castle in June, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in New Castle.
UV Risk Categories
Weather in New Castle varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in New Castle, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 64 mm (2.5 inches) | 84% | moderate |
| February Weather | 4°C (39°F) | 103 mm (4.1 inches) | 83% | moderate |
| March Weather | 7°C (45°F) | 106 mm (4.2 inches) | 83% | high |
| April Weather | 13°C (55°F) | 105 mm (4.1 inches) | 81% | very high |
| May Weather | 18°C (65°F) | 135 mm (5.3 inches) | 78% | very high |
| June Weather | 23°C (74°F) | 118 mm (4.7 inches) | 79% | very high |
| July Weather | 26°C (79°F) | 136 mm (5.4 inches) | 74% | very high |
| August Weather | 25°C (77°F) | 140 mm (5.5 inches) | 72% | very high |
| September Weather | 22°C (71°F) | 100 mm (3.9 inches) | 75% | very high |
| October Weather | 16°C (61°F) | 109 mm (4.3 inches) | 81% | high |
| November Weather | 8°C (47°F) | 83 mm (3.3 inches) | 85% | moderate |
| December Weather | 4°C (40°F) | 100 mm (3.9 inches) | 84% | moderate |