August Weather in Hartford, United States

Last updated: June 24, 2025

In August, the average temperature in Hartford, United States is a pleasant 22°C (72°F). However, temperatures can range from a cool 8°C (47°F) to a scorching 35°C (96°F). With 95 mm (3.7 in) of precipitation spread over 10 days, you can expect some rain. The average humidity sits at a comfortable 80%, making it an ideal time to explore the area!

August Temperature in Hartford

In August in Hartford, the average temperature is 22°C (72°F), with maximums reaching up to 35°C (96°F) and minimums dropping as low as 8°C (47°F). This variety in temperatures makes it a perfect time for travelers to enjoy both warm days and cooler evenings.

August Weather in Hartford: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Hartford, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hartford, August typically has an average temperature of 22°C (72°F), with highs reaching up to 35°C (96°F) and lows dropping to around 8°C (47°F).

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

August Precipitation in Hartford

In Hartford in August, the total precipitation amount is 95 mm (3.7 in) over the course of 10 days.

August Precipitation Trends in Hartford

The chart displays monthly precipitation patterns in Hartford, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Hartford, August typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Hartford

In Hartford in August humidity is 80%. With an average temperature of 22°C (72°F), this humidity feels like a warm, enveloping blanket that can quickly sap your energy while traveling, making you feel sticky and uncomfortable if you're not prepared.

August Average Humidity in Hartford

This chart illustrates the average monthly humidity levels in Hartford, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Hartford is approximately 80%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Hartford

In Hartford in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Hartford.

Maximum UV Index Levels in Hartford for August

The chart shows the monthly maximum UV Index (UVI) for Hartford in August, 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 August, the maximum UV index in Hartford typically reaches 9, which falls under the very high exposure category.

Data source: Hartford August 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 August Weather in Hartford Compares to Other Months

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

This table compares monthly weather conditions in Hartford, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	20 mm (0.8 inches)	80%	low
February Weather	-7°C (20°F)	23 mm (0.9 inches)	84%	moderate
March Weather	2°C (35°F)	65 mm (2.5 inches)	75%	moderate
April Weather	7°C (45°F)	80 mm (3.2 inches)	79%	very high
May Weather	15°C (59°F)	127 mm (5.0 inches)	74%	very high
June Weather	23°C (73°F)	83 mm (3.3 inches)	81%	extreme
July Weather	24°C (76°F)	81 mm (3.2 inches)	82%	very high
August Weather	22°C (72°F)	95 mm (3.7 inches)	80%	very high
September Weather	18°C (66°F)	102 mm (4.0 inches)	75%	very high
October Weather	9°C (48°F)	77 mm (3.1 inches)	77%	moderate
November Weather	1°C (35°F)	24 mm (1.0 inches)	85%	moderate
December Weather	-3°C (26°F)	39 mm (1.5 inches)	83%	low