October weather forecast
Richland, WA

Weather in October

October, the same as September, is another comfortable autumn month in Richland, Washington, with an average temperature ranging between min 46.6°F (8.1°C) and max 62.4°F (16.9°C).

Temperature

In October, the average high-temperature plummets from a moderately hot 78.6°F (25.9°C) in September to an enjoyable 62.4°F (16.9°C). In October, the average low-temperature is 46.6°F (8.1°C).

Humidity

In Richland, the average relative humidity in October is 57%.

Rainfall

In Richland, it is raining for 10 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, in Richland, there are 100.2 rainfall days, and 7.05" (179mm) of precipitation is accumulated.

Snowfall

In Richland, snow does not fall in April through October.

Daylight

In Richland, Washington, the average length of the day in October is 10h and 53min.
On the first day of October, sunrise is at 6:55 am and sunset at 6:37 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:44 pm PDT.

Sunshine

The average sunshine in October in Richland is 6.9h.

UV index

In Richland, the average daily maximum UV index in October is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 4 in October transform into the following instructions:
Take precautions - Protection against sunburn is recommended. 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 temperature in October in Richland?

In Richland, Washington, in October, the average high-temperature is 62.4°F (16.9°C), and the average low-temperature is 46.6°F (8.1°C).

What is the average humidity in October in Richland?

In Richland, Washington, the average relative humidity in October is 57%.

How much does it rain in Richland in October?

In Richland, in October, it is raining for 10 days, with typically 0.63" (16mm) of accumulated precipitation.

When it does not snow in Richland?

April through October are months without snowfall.

Does it snow in Richland in October?

In Richland, in October, it doesn't snow. In November, it regularly snows.

What is the average length of the day in October in Richland?

The average day length in October in Richland, Washington, is 10h and 53min.

When are sunrise and sunset in October in Richland?

On the first day of October, sunrise is at 6:55 am and sunset at 6:37 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:44 pm PDT.

How long on average sun shines in October in Richland?

The average sunshine duration in October is 6.9h.

How high is the UV index in October in Richland?

In October, the average daily maximum UV index in Richland is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Richland, WA

Average temperature in October - Richland, WA
  • Average high temperature in October: 62.4°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (38.1°F).

  • Average low temperature in October: 46.6°F

The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (27.5°F).

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Average pressure in October
Richland, WA

Average pressure in October - Richland, WA
  • Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in October
Richland, WA

Average wind speed in October - Richland, WA
  • Average wind speed in October: 6.5mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is December (5.6mph).

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Average humidity in October
Richland, WA

Average humidity in October - Richland, WA
  • Average humidity in October: 57%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is July (35%).

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Average rainfall in October
Richland, WA

Average rainfall in October - Richland, WA
  • Average rainfall in October: 0.63"

The wettest month (with the highest rainfall) is December (0.94").
The driest months (with the least rainfall) are July and September (0.2").

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Average rainfall days in October
Richland, WA

Average rainfall days in October - Richland, WA
  • Average rainfall days in October: 10 days

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is July (3.5 days).

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Average snowfall in October
Richland, WA

Average snowfall in October - Richland, WA
  • Average snowfall in October: 0"

The month with the highest snowfall is February (2.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in October
Richland, WA

Average snowfall days in October - Richland, WA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is December (3.3 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
Richland, WA

Average daylight in October / Average sunshine in October - Richland, WA
  • Average daylight in October: 10h and 53min

The month with the longest days is June (Average daylight: 15h and 44min).
The month with the shortest days is December (Average daylight: 8h and 41min).

  • Average sunshine in October: 6h and 54min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

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Average sunshine days in October
Richland, WA

Average sunshine days in October - Richland, WA
  • Average sunshine days in October: 19.4 days

The month with the most sunshine days is July (25.7 days).
The months with the least sunshine days are February and March (15.3 days).

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Average UV index in October
Richland, WA

Average UV index in October - Richland, WA
  • Average UV index in October: 4

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in October
Richland, WA

Average cloud cover in October - Richland, WA
  • Average cloud cover in October: 27

The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 9).

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Average visibility in October
Richland, WA

Average visibility in October - Richland, WA
  • 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).

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