October Weather in Rockville, United States

Last updated: June 24, 2025

In October, the average temperature in Rockville, United States hovers around 8°C (47°F). During this time, temperatures can dip as low as -13°C (9°F), while reaching a warm 28°C (82°F) on the higher end. Visitors can expect about 103 mm (4.1 in) of precipitation spread over 10 days, with an average humidity level of 84%.

October Temperature in Rockville

In October in Rockville, the average temperature is 8°C (47°F). Maximum temperatures can reach 28°C (82°F), while minimums can drop as low as -13°C (9°F). Be prepared for a wide range of weather conditions when traveling.

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

The chart illustrates October temperature patterns in Rockville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rockville, October typically has an average temperature of 8°C (47°F), with highs reaching up to 28°C (82°F) and lows dropping to around -13°C (9°F).

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

October Precipitation in Rockville

In Rockville in October, the precipitation amount is 103 mm (4.1 in) over a span of 10 days.

October Precipitation Trends in Rockville

The chart displays monthly precipitation patterns in Rockville, 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 Rockville, October typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 10 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 Rockville

In Rockville in October, humidity is 84%. With an average temperature of 8°C (47°F), this humidity feels like a damp blanket wrapping around you, making travel feel heavy and a bit lethargic, as the air thickens with moisture and each step becomes a little more cumbersome.

October Average Humidity in Rockville

This chart illustrates the average monthly humidity levels in Rockville, 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 Rockville is approximately 84%, 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 Rockville

In Rockville 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 Rockville.

Maximum UV Index Levels in Rockville for October

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

Data source: Rockville 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 Rockville Compares to Other Months

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

This table compares monthly weather conditions in Rockville, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-10°C (15°F)	19 mm (0.8 inches)	87%	low
February Weather	-10°C (15°F)	24 mm (1.0 inches)	90%	moderate
March Weather	0°C (31°F)	50 mm (2.0 inches)	85%	moderate
April Weather	5°C (42°F)	81 mm (3.2 inches)	84%	high
May Weather	14°C (58°F)	95 mm (3.7 inches)	78%	very high
June Weather	21°C (71°F)	69 mm (2.7 inches)	80%	very high
July Weather	23°C (74°F)	98 mm (3.9 inches)	81%	very high
August Weather	21°C (70°F)	143 mm (5.6 inches)	81%	very high
September Weather	17°C (63°F)	115 mm (4.5 inches)	81%	high
October Weather	8°C (47°F)	103 mm (4.1 inches)	84%	moderate
November Weather	0°C (32°F)	29 mm (1.2 inches)	88%	moderate
December Weather	-6°C (22°F)	45 mm (1.8 inches)	84%	low