July Weather in Stamford, United States

Last updated: June 24, 2025

In July, the average temperature in Stamford, United States is a pleasant 21°C (70°F). While you can expect minimums dropping to 8°C (47°F), the highs can reach up to 33°C (91°F). Be prepared for 118 mm (4.6 in) of precipitation over about 14 days, and enjoy the moderate average humidity of 66%.

July Temperature in Stamford

In July in Stamford, the average temperature is 21°C (70°F), with maximums reaching up to 33°C (91°F) and minimums dipping as low as 8°C (47°F). This makes it an ideal time for travelers to enjoy a mix of warm days and cooler evenings, perfect for outdoor activities and sightseeing.

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 21°C (70°F), with highs reaching up to 33°C (91°F) and lows dropping to around 8°C (47°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 118 mm (4.6 in) over a span of 14 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 118 mm (4.6 inches) of precipitation spread over approximately 14 days.

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

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Millimeters (mm) Inches (in)

July Humidity in Stamford

In Stamford in July humidity is 66%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making it comfortable for leisurely strolls but slightly sticky for longer excursions.

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 66%, 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 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 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 10, which falls under the very high 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	-5°C (24°F)	75 mm (2.9 inches)	89%	moderate
February Weather	-3°C (27°F)	93 mm (3.7 inches)	88%	moderate
March Weather	0°C (33°F)	88 mm (3.4 inches)	86%	high
April Weather	7°C (44°F)	115 mm (4.5 inches)	84%	very high
May Weather	13°C (56°F)	115 mm (4.5 inches)	76%	very high
June Weather	18°C (65°F)	99 mm (3.9 inches)	72%	very high
July Weather	21°C (70°F)	118 mm (4.6 inches)	66%	very high
August Weather	20°C (68°F)	110 mm (4.3 inches)	64%	very high
September Weather	16°C (62°F)	96 mm (3.8 inches)	72%	very high
October Weather	11°C (51°F)	137 mm (5.4 inches)	81%	high
November Weather	2°C (37°F)	94 mm (3.7 inches)	87%	moderate
December Weather	-2°C (29°F)	93 mm (3.7 inches)	84%	low