Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
With the onset of October, Richland experiences a distinct temperature drop, with the average high-temperature reducing from September's moderately hot 78.6°F (25.9°C) to a refreshing 62.4°F (16.9°C). Throughout October, Richland's nights cool down to an average of 46.6°F (8.1°C).Humidity
In Richland, the average relative humidity in October is 57%.Rainfall
In October, in Richland, the rain falls for 10 days. Throughout October, 0.63" (16mm) of precipitation is accumulated. Throughout the year, there are 100.2 rainfall days, and 7.05" (179mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Richland.Daylight
The average length of the day in October is 10h and 53min.On the first day of October in Richland, sunrise is at 6:56 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:43 pm PDT.
Sunshine
In Richland, the average sunshine in October is 6.9h.UV index
In October, the average daily maximum UV index in Richland is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In October, a regular UV index of 4 translates into these guidelines:
Undertake precautions - Obligation exists to protect against skin and eye damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What is the temperature in October in Richland?
What is the average humidity in October in Richland?
How many days does it rain in October in Richland?
When it does not snow in Richland?
Does it snow in Richland in October?
How many hours of daylight does Richland have in October?
When are sunrise and sunset in October in Richland?
How long on average sun shines in October in Richland?
What is the UV index reading in October in Richland?
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in October /
Average sunshine in October
Richland, WA
- Average daylight in October: 10h and 5min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in October: 6h and 5min
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).
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).
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).
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).
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).
Richland, Washington, USA
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