October weather forecast
Greenbelt, MD

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Weather in October

The full swing of fall in October brings a delightful chill and crispness to the air. As the temperatures continue to retreat, locals often find this month to be extremely agreeable weather-wise. The atmospheric pressure stays relatively stable, maintaining around 30.04" (763mm). Akin to the bygone September days, foliage turns Greenbelt into a canvas painted with warm hues of gold and brown.

Temperature

The arrival of October in Greenbelt indicates a decrease in the average high-temperature, moving from a moderately hot 78.1°F (25.6°C) in September to a refreshing 66.2°F (19°C). During October, Greenbelt observes a consistent average nighttime temperature of 51.8°F (11°C).

Humidity

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

Rainfall

In Greenbelt, in October, it is raining for 11.8 days, with typically 2.64" (67mm) of accumulated precipitation. Throughout the year, there are 157.9 rainfall days, and 31.14" (791mm) of precipitation is accumulated.

Snowfall

In Greenbelt, snow does not fall in May through November.

Daylight

In October, the average length of the day 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

In Greenbelt, 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 exposure to the Sun's UV radiation for the ordinary person.
Note: In October, an average UV index of 4 transforms into the following instructions:
Take precautions - Protection against sunburn is recommended. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

What is the temperature in October?

In October, in Greenbelt, the average high-temperature is 66.2°F (19°C), and the average low-temperature is 51.8°F (11°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is computed to be 93.2°F (34°C).

What is the most humid month?

The months with the highest humidity in Greenbelt are May, October and December, with an average relative humidity of 76%.

What is the average humidity in October?

The average relative humidity in October is 76%.

How much does it rain in Greenbelt in October?

In Greenbelt, in October, it is raining for 11.8 days, with typically 2.64" (67mm) of accumulated precipitation.

When it does not snow?

In Greenbelt, snow does not fall in May through November.

How many hours of daylight does Greenbelt have in October?

In Greenbelt, the average day length in October is 11h and 10min.

What time are sunrise and sunset in October?

In October, on the first day of the month, 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 Greenbelt have in October?

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

How high is the UV index in October?

In Greenbelt, the average daily maximum UV index in October is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's 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
Greenbelt, MD

Average temperature in October - Greenbelt, 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
Greenbelt, MD

Average pressure in October - Greenbelt, 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
Greenbelt, MD

Average wind speed in October - Greenbelt, 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
Greenbelt, MD

Average humidity in October - Greenbelt, 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
Greenbelt, MD

Average rainfall in October - Greenbelt, 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
Greenbelt, MD

Average rainfall days in October - Greenbelt, 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
Greenbelt, MD

Average snowfall in October - Greenbelt, 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
Greenbelt, MD

Average snowfall days in October - Greenbelt, 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
Greenbelt, MD

Average daylight in October / Average sunshine in October - Greenbelt, 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
Greenbelt, MD

Average sunshine days in October - Greenbelt, 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
Greenbelt, MD

Average UV index in October - Greenbelt, 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
Greenbelt, MD

Average cloud cover in October - Greenbelt, 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
Greenbelt, MD

Average visibility in October - Greenbelt, 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).

Greenbelt, Maryland, USA

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