October weather forecast
Washington, DC

Rows of jacaranda trees in spring in the tidal basin of the Washington Monument in Washington city, DC, USA
Rows of jacaranda trees in spring in the tidal basin of the Washington Monument in Washington city, DC, USA

Weather in October

October, the same as September, is another enjoyable autumn month in Washington, District of Columbia, with an average temperature fluctuating between 66.9°F (19.4°C) and 51.3°F (10.7°C).

Temperature

In Washington, the average high-temperature in October decreases from a moderately hot 78.4°F (25.8°C) in September to an enjoyable 66.9°F (19.4°C). The average low-temperature, in October, is 51.3°F (10.7°C).

Humidity

In Washington, the average relative humidity in October is 75%.

Rainfall

In Washington, during 10.4 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. Throughout the year, there are 149.1 rainfall days, and 26.14" (664mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Washington.

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 6:51 pm. On the last day of October, in Washington, sunrise is at 7:34 am and sunset at 6:09 pm EDT.

Sunshine

In October, the average sunshine in Washington is 5.7h.

UV index

In October, the average daily maximum UV index in Washington is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 4 in October interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the average humidity in October in Washington?

In October, the average relative humidity in Washington, District of Columbia, is 75%.

How many days does it rain in October in Washington?

In Washington, during October, the rain falls for 10.4 days and regularly aggregates up to 2.01" (51mm) of precipitation.

When it does not snow in Washington?

April through November are months without snowfall in Washington, District of Columbia.

How many hours of daylight does Washington have in October?

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

What time are sunrise and sunset in October in Washington?

In October, on the first day of the month, sunrise is at 7:04 am and sunset at 6:51 pm. On the last day of the month, in Washington, District of Columbia, sunrise is at 7:34 am and sunset at 6:09 pm EDT.

How long on average sun shines in October in Washington?

In October, the average sunshine duration in Washington is 5.7h.

How high is the UV index in October in Washington?

In October, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Washington, DC

Average temperature in October - Washington, DC
  • Average high temperature in October: 66.9°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in October: 51.3°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

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Average pressure in October
Washington, DC

Average pressure in October - Washington, DC
  • 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 (29.95"Hg).

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Average wind speed in October
Washington, DC

Average wind speed in October - Washington, DC
  • Average wind speed in October: 6.8mph

The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in October
Washington, DC

Average humidity in October - Washington, DC
  • Average humidity in October: 75%

The month with the highest relative humidity is May (76%).
The months with the lowest relative humidity are April and July (71%).

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Average rainfall in October
Washington, DC

Average rainfall in October - Washington, DC
  • Average rainfall in October: 2.01"

The wettest month (with the highest rainfall) is August (3.46").
The driest month (with the least rainfall) is January (1.57").

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Average rainfall days in October
Washington, DC

Average rainfall days in October - Washington, DC
  • Average rainfall days in October: 10.4 days

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is November (8.1 days).

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Average snowfall in October
Washington, DC

Average snowfall in October - Washington, DC
  • Average snowfall in October: 0"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in October
Washington, DC

Average snowfall days in October - Washington, DC
  • Average snowfall days in October: 0 days

The months with the highest number of snowfall days are January and February (3.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in October /
Average sunshine in October
Washington, DC

Average daylight in October / Average sunshine in October - Washington, DC
  • Average daylight in October: 11h and 10min

The month with the longest days is June (Average daylight: 14h and 51min).
The month with the shortest days is December (Average daylight: 9h and 29min).

  • Average sunshine in October: 5h and 42min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).

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Average sunshine days in October
Washington, DC

Average sunshine days in October - Washington, DC
  • Average sunshine days in October: 19.3 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (12.8 days).

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Average UV index in October
Washington, DC

Average UV index in October - Washington, DC
  • Average UV index in October: 4

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in October
Washington, DC

Average cloud cover in October - Washington, DC
  • 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 30).

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Average visibility in October
Washington, DC

Average visibility in October - Washington, DC
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

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