June Weather in Jefferson, United States

Last updated: June 24, 2025

In June, the average temperature in Jefferson, United States is a pleasant 23°C (74°F). However, temperatures can range from a cool 9°C (48°F) to a sweltering 39°C (102°F). Be prepared for occasional rain, as 104 mm (4.1 in) of precipitation typically falls over 11 days. The air tends to be quite humid, with an average humidity of 81%.

June Temperature in Jefferson

In June in Jefferson, the average temperature is 23°C (74°F), with maximums reaching up to 39°C (102°F) and minimums dropping as low as 9°C (48°F). It’s a great time to enjoy a mix of warm days and cooler evenings during your travels.

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

The chart illustrates June temperature patterns in Jefferson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jefferson, June typically has an average temperature of 23°C (74°F), with highs reaching up to 39°C (102°F) and lows dropping to around 9°C (48°F).

Data source: Temperature data for Jefferson generated using information from the Copernicus Climate Change Service.

June Precipitation in Jefferson

In Jefferson in June, the precipitation amount is 104 mm (4.1 in) over the course of 11 days.

June Precipitation Trends in Jefferson

The chart displays monthly precipitation patterns in Jefferson, 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 Jefferson, June typically receives around 104 mm (4.1 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

June Humidity in Jefferson

In Jefferson in June, humidity is 81%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket draped over your skin, making travel feel a bit more sluggish and requiring plenty of water breaks to stay comfortable.

June Average Humidity in Jefferson

This chart illustrates the average monthly humidity levels in Jefferson, 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 Jefferson is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Jefferson

In Jefferson in June, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Jefferson.

Maximum UV Index Levels in Jefferson for June

The chart shows the monthly maximum UV Index (UVI) for Jefferson 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 Jefferson typically reaches 11, which falls under the extreme exposure category.

Data source: Jefferson 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 Jefferson Compares to Other Months

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

This table compares monthly weather conditions in Jefferson, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	31 mm (1.2 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)	64 mm (2.5 inches)	77%	very high
May Weather	16°C (62°F)	163 mm (6.4 inches)	77%	very high
June Weather	23°C (74°F)	104 mm (4.1 inches)	81%	extreme
July Weather	25°C (77°F)	76 mm (3.0 inches)	81%	very high
August Weather	23°C (73°F)	94 mm (3.7 inches)	77%	very high
September Weather	20°C (68°F)	100 mm (3.9 inches)	73%	very high
October Weather	11°C (52°F)	120 mm (4.7 inches)	75%	high
November Weather	3°C (38°F)	36 mm (1.4 inches)	85%	moderate
December Weather	-1°C (30°F)	37 mm (1.5 inches)	83%	moderate