July Weather in Stamford, United States

Last updated: June 24, 2025

In July, the average temperature in Stamford, United States hovers around 30°C (86°F). Expect a range that can dip as low as 17°C (64°F) and soar up to a sizzling 42°C (109°F). With an average humidity of 75% accompanying 31 mm (1.2 in) of precipitation spread over 5 days, the weather is certainly a mix of warmth and moisture.

July Temperature in Stamford

In July in Stamford, the average temperature is 30°C (86°F). Maximums can reach 42°C (109°F), and minimums can be as low as 17°C (64°F). Be prepared for hot days and cooler evenings while exploring this vibrant destination.

July Weather in Stamford: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Stamford, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stamford, July typically has an average temperature of 30°C (86°F), with highs reaching up to 42°C (109°F) and lows dropping to around 17°C (64°F).

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

July Precipitation in Stamford

In Stamford in July, the precipitation amount is 31 mm (1.2 in) spread over 5 days.

July Precipitation Trends in Stamford

The chart displays monthly precipitation patterns in Stamford, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Stamford, July typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 5 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

July Humidity in Stamford

In Stamford in July humidity is 75%. With an average temperature of 30°C (86°F), this humidity feels like walking through a warm, damp blanket, making traveling feel sticky and exhausting.

July Average Humidity in Stamford

This chart illustrates the average monthly humidity levels in Stamford, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Stamford is approximately 75%, offering insight into how humid the weather typically is during this month.

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

July UV Index in Stamford

In Stamford in July, 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 Stamford.

Maximum UV Index Levels in Stamford for July

The chart shows the monthly maximum UV Index (UVI) for Stamford in July, 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 July, the maximum UV index in Stamford typically reaches 12, which falls under the extreme exposure category.

Data source: Stamford July 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 July Weather in Stamford Compares to Other Months

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

This table compares monthly weather conditions in Stamford, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	28 mm (1.1 inches)	77%	moderate
February Weather	8°C (47°F)	26 mm (1.0 inches)	76%	high
March Weather	15°C (60°F)	49 mm (1.9 inches)	74%	very high
April Weather	18°C (65°F)	66 mm (2.6 inches)	75%	very high
May Weather	24°C (75°F)	79 mm (3.1 inches)	80%	extreme
June Weather	28°C (83°F)	60 mm (2.4 inches)	80%	extreme
July Weather	30°C (86°F)	31 mm (1.2 inches)	75%	extreme
August Weather	29°C (85°F)	44 mm (1.7 inches)	67%	extreme
September Weather	26°C (78°F)	87 mm (3.4 inches)	64%	very high
October Weather	19°C (66°F)	67 mm (2.6 inches)	70%	very high
November Weather	13°C (55°F)	32 mm (1.3 inches)	82%	high
December Weather	9°C (49°F)	25 mm (1.0 inches)	85%	moderate