October weather forecast
Riverdale Park, MD

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Weather in October

October, like September, in Riverdale Park, Maryland, is another enjoyable autumn month, with temperature in the range of an average high of 66.2°F (19°C) and an average low of 51.8°F (11°C).

Temperature

The onset of October introduces a moderate change in Riverdale Park's weather, with average high-temperatures falling from September's moderately hot 78.1°F (25.6°C) to a refreshing 66.2°F (19°C). In Riverdale Park, in October, the average low-temperature is a cool 51.8°F (11°C).

Humidity

May, October and December, with an average relative humidity of 76%, are the most humid months.

Rainfall

In Riverdale Park, in October, during 11.8 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. Throughout the year, there are 157.9 rainfall days, and 31.14" (791mm) of precipitation is accumulated.

Snowfall

In Riverdale Park, Maryland, snow does not fall in May through November.

Daylight

The average length of the day in October is 11h and 10min.
On the first day of the month, sunrise is at 7:04 am and sunset at 6:49 pm. On the last day of October, sunrise is at 7:34 am and sunset at 6:07 pm EDT.

Sunshine

In October, the average sunshine is 5.6h.

UV index

The average daily maximum UV index in October is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index, 4 in October, converts into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average October temperature?

An average high-temperature, in October, in Riverdale Park, is 66.2°F (19°C) and the average low-temperature is 51.8°F (11°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in August is evaluated at 93.2°F (34°C).

What are the most humid months?

May, October and December, with an average relative humidity of 76%, are most humid months.

What is the average humidity in October?

In Riverdale Park, the average relative humidity in October is 76%.

How many days does it rain in October?

In October, the rain falls for 11.8 days. Throughout October, 2.64" (67mm) of precipitation is accumulated.

When it does not snow?

In Riverdale Park, snow does not fall in May through November.

How many hours of daylight does Riverdale Park have in October?

In Riverdale Park, Maryland, the average day length in October is 11h and 10min.

When are sunrise and sunset in October?

On the first day of October, sunrise is at 7:04 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 6:07 pm EDT.

How many hours of sunshine does Riverdale Park have in October?

In Riverdale Park, the average sunshine duration in October is 5.6h.

What is the UV index reading in October?

In Riverdale Park, Maryland, the average daily maximum UV index in October is 4. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Riverdale Park, MD

Average temperature in October - Riverdale Park, MD
  • Average high temperature in October: 66.2°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in October: 51.8°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in October
Riverdale Park, MD

Average pressure in October - Riverdale Park, MD
  • Average pressure in October: 30.04"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in October
Riverdale Park, MD

Average wind speed in October - Riverdale Park, MD
  • Average wind speed in October: 6.9mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in October
Riverdale Park, MD

Average humidity in October - Riverdale Park, MD
  • Average humidity in October: 76%

The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).

Average rainfall in October
Riverdale Park, MD

Average rainfall in October - Riverdale Park, MD
  • Average rainfall in October: 2.64"

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").

Average rainfall days in October
Riverdale Park, MD

Average rainfall days in October - Riverdale Park, MD
  • Average rainfall days in October: 11.8 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).

Average snowfall in October
Riverdale Park, MD

Average snowfall in October - Riverdale Park, MD
  • Average snowfall in October: 0"

The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September, October and November (0").

Average snowfall days in October
Riverdale Park, MD

Average snowfall days in October - Riverdale Park, MD
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is January (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in October /
Average sunshine in October
Riverdale Park, MD

Average daylight in October / Average sunshine in October - Riverdale Park, MD
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in October: 5h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in October
Riverdale Park, MD

Average sunshine days in October - Riverdale Park, MD
  • Average sunshine days in October: 17.4 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

Average UV index in October
Riverdale Park, MD

Average UV index in October - Riverdale Park, MD
  • Average UV index in October: 4

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in October
Riverdale Park, MD

Average cloud cover in October - Riverdale Park, MD
  • Average cloud cover in October: 38

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in October
Riverdale Park, MD

Average visibility in October - Riverdale Park, MD
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Riverdale Park, Maryland, USA

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