October Weather in Stamford, United States

Last updated: June 24, 2025

In October, the average temperature in Stamford, United States is a cool 11°C (51°F). This month brings a wide range of temperatures, with a minimum dipping as low as -6°C (21°F) and a maximum reaching 26°C (79°F). Expect 137 mm (5.4 in) of precipitation over 12 days, contributing to an average humidity of 81%. Prepare for a mix of chilly and mild days!

October Temperature in Stamford

In October in Stamford, the average temperature is 11°C (51°F), with maximums reaching 26°C (79°F) and minimums dropping as low as -6°C (21°F). This range makes it essential for travelers to pack both warm and light clothing to accommodate the varying weather conditions.

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

The chart illustrates October 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, October typically has an average temperature of 11°C (51°F), with highs reaching up to 26°C (79°F) and lows dropping to around -6°C (21°F).

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

October Precipitation in Stamford

In Stamford in October, the precipitation amount is 137 mm (5.4 in) that occurs over the course of 12 days.

October Precipitation Trends in Stamford

The chart displays monthly precipitation patterns in Stamford, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Stamford, October typically receives around 137 mm (5.4 inches) of precipitation spread over approximately 12 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Stamford

In Stamford in October, humidity is 81%. With an average temperature of 11°C (51°F), this humidity feels like walking through a thick blanket of moisture, making travel uncomfortable and causing clothes to cling to the skin, while the crisp air adds a chill that contrasts sharply with the heavy, humid atmosphere.

October Average Humidity in Stamford

This chart illustrates the average monthly humidity levels in Stamford, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Stamford is approximately 81%, offering insight into how humid the weather typically is during this month.

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

October UV Index in Stamford

In Stamford in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Stamford, you can refer to this Hourly UV Index in Stamford.

Maximum UV Index Levels in Stamford for October

The chart shows the monthly maximum UV Index (UVI) for Stamford in October, 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 October, the maximum UV index in Stamford typically reaches 6, which falls under the high exposure category.

Data source: Stamford October 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 October 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 October’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 October’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