June Weather in Harrisburg, United States

Last updated: June 24, 2025

In June, the average temperature in Harrisburg, United States hovers around 21°C (69°F). Expect a minimum drop to 5°C (41°F) and a scorching peak of 38°C (100°F). With 57 mm (2.2 in) of precipitation spread across 9 days, don't forget your umbrella! Additionally, the average humidity is a high 82%, making it feel pleasantly warm yet slightly muggy.

June Temperature in Harrisburg

In June in Harrisburg, the average temperature is 21°C (69°F). Maximums can reach 38°C (100°F), while minimums can drop as low as 5°C (41°F). This wide temperature range makes Harrisburg an ideal destination for travelers seeking both warm days and cooler evenings.

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

The chart illustrates June temperature patterns in Harrisburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harrisburg, June typically has an average temperature of 21°C (69°F), with highs reaching up to 38°C (100°F) and lows dropping to around 5°C (41°F).

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

June Precipitation in Harrisburg

In Harrisburg in June, the total precipitation amount is 57 mm (2.2 in) over the course of 9 days.

June Precipitation Trends in Harrisburg

The chart displays monthly precipitation patterns in Harrisburg, 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 Harrisburg, June typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 9 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 Harrisburg

In Harrisburg in June humidity is 82%. With an average temperature of 21°C (69°F), this humidity feels like a sweltering embrace, making outdoor activities feel more strenuous and prompting travelers to seek shade and cooling breezes.

June Average Humidity in Harrisburg

This chart illustrates the average monthly humidity levels in Harrisburg, 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 Harrisburg is approximately 82%, 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 Harrisburg

In Harrisburg 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 Harrisburg.

Maximum UV Index Levels in Harrisburg for June

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

Data source: Harrisburg 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 Harrisburg Compares to Other Months

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

This table compares monthly weather conditions in Harrisburg, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (32°F)	14 mm (0.6 inches)	72%	moderate
February Weather	-2°C (30°F)	23 mm (0.9 inches)	76%	moderate
March Weather	5°C (40°F)	67 mm (2.7 inches)	61%	high
April Weather	8°C (46°F)	53 mm (2.1 inches)	60%	very high
May Weather	13°C (55°F)	117 mm (4.6 inches)	74%	very high
June Weather	21°C (69°F)	57 mm (2.2 inches)	82%	extreme
July Weather	24°C (75°F)	46 mm (1.8 inches)	82%	extreme
August Weather	22°C (73°F)	35 mm (1.4 inches)	84%	very high
September Weather	19°C (66°F)	24 mm (1.0 inches)	75%	very high
October Weather	9°C (48°F)	36 mm (1.4 inches)	73%	high
November Weather	5°C (42°F)	25 mm (1.0 inches)	74%	moderate
December Weather	1°C (35°F)	18 mm (0.7 inches)	77%	moderate