October Weather in Hartley, United States

Last updated: June 24, 2025

In Hartley, United States, the average temperature in October hovers around 9°C (49°F). While daytime highs can reach a pleasant 30°C (86°F), nights may plunge to a chilly -10°C (14°F). Expect 88 mm (3.5 in) of precipitation over approximately 10 days, with humidity levels averaging a damp 77%.

October Temperature in Hartley

In October in Hartley, the average temperature is 9°C (49°F). The maximum can reach 30°C (86°F), while the minimum can drop as low as -10°C (14°F). Visitors should be prepared for a wide range of temperatures, making it essential to pack layers for their trip.

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

The chart illustrates October temperature patterns in Hartley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hartley, October typically has an average temperature of 9°C (49°F), with highs reaching up to 30°C (86°F) and lows dropping to around -10°C (14°F).

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

October Precipitation in Hartley

In Hartley in October, the precipitation amount is 88 mm (3.5 in) spread over a duration of 10 days.

October Precipitation Trends in Hartley

The chart displays monthly precipitation patterns in Hartley, 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 Hartley, October typically receives around 88 mm (3.5 inches) of precipitation spread over approximately 10 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 Hartley

In Hartley in October humidity is 77%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making outdoor explorations feel colder and more uncomfortable than the thermometer suggests.

October Average Humidity in Hartley

This chart illustrates the average monthly humidity levels in Hartley, 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 Hartley is approximately 77%, 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 Hartley

In Hartley 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 Hartley.

Maximum UV Index Levels in Hartley for October

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

Data source: Hartley 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 Hartley Compares to Other Months

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

This table compares monthly weather conditions in Hartley, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (20°F)	28 mm (1.1 inches)	80%	moderate
February Weather	-7°C (19°F)	34 mm (1.3 inches)	84%	moderate
March Weather	2°C (35°F)	69 mm (2.7 inches)	75%	moderate
April Weather	7°C (45°F)	101 mm (4.0 inches)	79%	very high
May Weather	15°C (59°F)	136 mm (5.3 inches)	74%	very high
June Weather	22°C (72°F)	126 mm (5.0 inches)	81%	extreme
July Weather	24°C (75°F)	73 mm (2.9 inches)	82%	very high
August Weather	22°C (71°F)	104 mm (4.1 inches)	80%	very high
September Weather	19°C (66°F)	109 mm (4.3 inches)	75%	very high
October Weather	9°C (49°F)	88 mm (3.5 inches)	77%	moderate
November Weather	2°C (35°F)	31 mm (1.2 inches)	85%	moderate
December Weather	-3°C (27°F)	39 mm (1.5 inches)	83%	moderate