nomadseason

June Weather in Thornton, United States

Last updated: June 24, 2025

In Thornton, United States, the average temperature in June hovers around 20°C (68°F). However, temperatures can vary significantly, with a minimum of 5°C (42°F) and a maximum of 37°C (99°F). During this month, expect about 48 mm (1.9 in) of precipitation spread over 9 days, and an average humidity level of 58%.

June Temperature in Thornton

In June in Thornton, the average temperature is 20°C (68°F). The maximum can reach 37°C (99°F) and the minimum can be as low as 5°C (42°F). This makes Thornton a great destination for travelers seeking a diverse climate experience.

June Weather in Thornton: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Thornton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Thornton, June typically has an average temperature of 20°C (68°F), with highs reaching up to 37°C (99°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec302939475568737266494033
Data source: Temperature data for Thornton generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in Thornton

In Thornton in June, the total precipitation amount is 48 mm (1.9 in) spread over 9 days.

June Precipitation Trends in Thornton

The chart displays monthly precipitation patterns in Thornton, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Thornton, June typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec2329575511148443629372414
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

June Humidity in Thornton

In Thornton in June humidity is 58%. With an average temperature of 20°C (68°F), this humidity feels like a refreshing embrace, creating a comfortable atmosphere for exploring the local sights and enjoying leisurely walks outdoors.

June Average Humidity in Thornton

This chart illustrates the average monthly humidity levels in Thornton, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Thornton is approximately 58%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%76%67%58%52%56%65%76%82%89%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Thornton

In Thornton in June, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Thornton.

Maximum UV Index Levels in Thornton for June

The chart shows the monthly maximum UV Index (UVI) for Thornton in June, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In June, the maximum UV index in Thornton typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469111212121110754
Data source: Thornton June UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How June Weather in Thornton Compares to Other Months

Weather in Thornton varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Thornton, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Thornton, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)23 mm (0.9 inches)88%moderate
February Weather-1°C (30°F)29 mm (1.1 inches)87%high
March Weather4°C (40°F)57 mm (2.3 inches)81%very high
April Weather8°C (47°F)55 mm (2.2 inches)76%extreme
May Weather13°C (56°F)111 mm (4.4 inches)66%extreme
June Weather20°C (68°F)48 mm (1.9 inches)58%extreme
July Weather23°C (74°F)43 mm (1.7 inches)52%extreme
August Weather22°C (72°F)35 mm (1.4 inches)56%extreme
September Weather19°C (66°F)29 mm (1.2 inches)65%very high
October Weather9°C (49°F)37 mm (1.5 inches)76%high
November Weather5°C (41°F)24 mm (1.0 inches)82%moderate
December Weather1°C (34°F)14 mm (0.6 inches)89%moderate

Compare Thornton's Climate with Cities Worldwide