June Weather in Harvard, United States

Last updated: June 24, 2025

In June, the average temperature in Harvard, United States hovers around 21°C (71°F), offering a pleasant climate for visitors. However, temperatures can vary significantly, with minimums dipping to 9°C (48°F) and highs reaching up to 34°C (94°F). Be prepared for some rain, as the area experiences 115 mm (4.5 in) of precipitation over approximately 13 days. With an average humidity of 80%, the air can feel quite moist, making for a unique atmosphere during this vibrant time of year.

June Temperature in Harvard

In June in Harvard, the average temperature is 21°C (71°F), with maximums reaching up to 34°C (94°F) and minimums dropping as low as 9°C (48°F). This range makes it an ideal time for travelers to experience a variety of outdoor activities, from sunny adventures to cooler evening strolls.

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

The chart illustrates June temperature patterns in Harvard, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harvard, June typically has an average temperature of 21°C (71°F), with highs reaching up to 34°C (94°F) and lows dropping to around 9°C (48°F).

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

June Precipitation in Harvard

In Harvard in June, the precipitation amount is 115 mm (4.5 in) spread over 13 days.

June Precipitation Trends in Harvard

The chart displays monthly precipitation patterns in Harvard, 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 Harvard, June typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 13 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 Harvard

In Harvard in June humidity is 80%. With an average temperature of 21°C (71°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities feel more exhausting and requiring frequent breaks to stay hydrated.

June Average Humidity in Harvard

This chart illustrates the average monthly humidity levels in Harvard, 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 Harvard is approximately 80%, 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 Harvard

In Harvard 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 Harvard.

Maximum UV Index Levels in Harvard for June

The chart shows the monthly maximum UV Index (UVI) for Harvard 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 Harvard typically reaches 10, which falls under the very high exposure category.

Data source: Harvard 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 Harvard Compares to Other Months

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

This table compares monthly weather conditions in Harvard, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	61 mm (2.4 inches)	85%	moderate
February Weather	-4°C (25°F)	58 mm (2.3 inches)	85%	moderate
March Weather	3°C (37°F)	66 mm (2.6 inches)	85%	high
April Weather	8°C (47°F)	110 mm (4.3 inches)	85%	very high
May Weather	15°C (60°F)	154 mm (6.0 inches)	78%	very high
June Weather	21°C (71°F)	115 mm (4.5 inches)	80%	very high
July Weather	24°C (75°F)	84 mm (3.3 inches)	78%	very high
August Weather	22°C (72°F)	91 mm (3.6 inches)	76%	very high
September Weather	19°C (66°F)	104 mm (4.1 inches)	79%	very high
October Weather	11°C (53°F)	119 mm (4.7 inches)	83%	moderate
November Weather	3°C (37°F)	49 mm (1.9 inches)	88%	moderate
December Weather	-1°C (31°F)	52 mm (2.1 inches)	81%	low