October Weather in Saint Helen, United States

Last updated: June 24, 2025

In October, the average temperature in Saint Helen, United States hovers around 10°C (49°F), with a minimum dipping to -4°C (24°F) and a maximum soaring to 28°C (82°F). Expect 124 mm (4.9 in) of precipitation spread over 15 days, while humidity levels linger at a cozy 85%.

October Temperature in Saint Helen

In October in Saint Helen, the average temperature is 10°C (49°F). Maximum temperatures can reach 28°C (82°F), while minimum temperatures can drop to as low as -4°C (24°F). Be prepared for a wide range of weather conditions if you plan to travel during this time.

October Weather in Saint Helen: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Saint Helen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Helen, October typically has an average temperature of 10°C (49°F), with highs reaching up to 28°C (82°F) and lows dropping to around -4°C (24°F).

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

October Precipitation in Saint Helen

In Saint Helen in October, the total precipitation amount is 124 mm (4.9 in) over a period of 15 days.

October Precipitation Trends in Saint Helen

The chart displays monthly precipitation patterns in Saint Helen, 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 Saint Helen, October typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 15 days.

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

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Millimeters (mm) Inches (in)

October Humidity in Saint Helen

In Saint Helen in October humidity is 85%. With an average temperature of 10°C (49°F), this humidity feels like an unrelenting blanket, making outdoor activities less enjoyable and forcing travelers to seek shelter more often.

October Average Humidity in Saint Helen

This chart illustrates the average monthly humidity levels in Saint Helen, 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 Saint Helen is approximately 85%, 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 Saint Helen

In Saint Helen in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Saint Helen.

Maximum UV Index Levels in Saint Helen for October

The chart shows the monthly maximum UV Index (UVI) for Saint Helen 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 Saint Helen typically reaches 5, which falls under the moderate exposure category.

Data source: Saint Helen 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 Saint Helen Compares to Other Months

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

This table compares monthly weather conditions in Saint Helen, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	51 mm (2.0 inches)	92%	low
February Weather	-6°C (22°F)	51 mm (2.0 inches)	91%	moderate
March Weather	0°C (32°F)	54 mm (2.1 inches)	87%	moderate
April Weather	6°C (43°F)	94 mm (3.7 inches)	85%	very high
May Weather	13°C (56°F)	111 mm (4.4 inches)	79%	very high
June Weather	19°C (66°F)	114 mm (4.5 inches)	75%	very high
July Weather	22°C (72°F)	91 mm (3.6 inches)	75%	very high
August Weather	20°C (69°F)	89 mm (3.5 inches)	75%	very high
September Weather	16°C (61°F)	76 mm (3.0 inches)	79%	high
October Weather	10°C (49°F)	124 mm (4.9 inches)	85%	moderate
November Weather	2°C (35°F)	58 mm (2.3 inches)	88%	moderate
December Weather	-2°C (28°F)	62 mm (2.4 inches)	89%	low