October Weather in Old Mystic, United States

Last updated: June 24, 2025

In October, the average temperature in Old Mystic, United States is a mild 14°C (58°F), with a minimum dipping to -1°C (31°F) and a peak reaching 30°C (87°F). Expect about 132 mm (5.2 in) of precipitation over approximately 12 days, coupled with an average humidity of 75%. Plan your activities accordingly to make the most of this vibrant month!

October Temperature in Old Mystic

In October in Old Mystic, the average temperature is 14°C (58°F), with maximums reaching 30°C (87°F) and minimums dipping as low as -1°C (31°F). This range makes Old Mystic an excellent destination for travelers seeking a diverse climate experience.

October Weather in Old Mystic: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Old Mystic, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Old Mystic, October typically has an average temperature of 14°C (58°F), with highs reaching up to 30°C (87°F) and lows dropping to around -1°C (31°F).

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

October Precipitation in Old Mystic

In Old Mystic in October, the precipitation amount is 132 mm (5.2 in) over the course of 12 days.

October Precipitation Trends in Old Mystic

The chart displays monthly precipitation patterns in Old Mystic, 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 Old Mystic, October typically receives around 132 mm (5.2 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 Old Mystic

In Old Mystic in October humidity is 75%. With an average temperature of 14°C (58°F), this humidity feels like a lingering blanket of warmth, making travel both refreshing and a bit stifling, as the moisture in the air may leave you feeling slightly sticky while enjoying outdoor adventures.

October Average Humidity in Old Mystic

This chart illustrates the average monthly humidity levels in Old Mystic, 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 Old Mystic is approximately 75%, 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 Old Mystic

In Old Mystic 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 Old Mystic, you can refer to this Hourly UV Index in Old Mystic.

Maximum UV Index Levels in Old Mystic for October

The chart shows the monthly maximum UV Index (UVI) for Old Mystic 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 Old Mystic typically reaches 6, which falls under the high exposure category.

Data source: Old Mystic 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 Old Mystic Compares to Other Months

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

This table compares monthly weather conditions in Old Mystic, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (33°F)	72 mm (2.8 inches)	84%	moderate
February Weather	1°C (35°F)	92 mm (3.6 inches)	84%	moderate
March Weather	4°C (40°F)	98 mm (3.8 inches)	82%	high
April Weather	9°C (49°F)	129 mm (5.1 inches)	79%	very high
May Weather	15°C (59°F)	109 mm (4.3 inches)	75%	very high
June Weather	20°C (68°F)	96 mm (3.8 inches)	78%	very high
July Weather	23°C (75°F)	149 mm (5.8 inches)	76%	very high
August Weather	23°C (74°F)	111 mm (4.4 inches)	76%	very high
September Weather	19°C (67°F)	96 mm (3.8 inches)	75%	very high
October Weather	14°C (58°F)	132 mm (5.2 inches)	75%	high
November Weather	7°C (45°F)	101 mm (4.0 inches)	80%	moderate
December Weather	2°C (36°F)	130 mm (5.1 inches)	80%	low