October weather forecastRichmond Highlands, WA
October
Weather in October
October, like September, is another mild autumn month in Richmond Highlands, Washington, with an average temperature ranging between min 45.9°F (7.7°C) and max 57.9°F (14.4°C).Temperature
A moderate decline in the average high-temperature is seen during October, decreasing from an enjoyable 67.6°F (19.8°C) in September to a moderate 57.9°F (14.4°C). October nights in Richmond Highlands are marked by an average temperature drop to a frosty 45.9°F (7.7°C).Humidity
In Richmond Highlands, the average relative humidity in October is 79%.Rainfall
In October, the rain falls for 15.5 days. Throughout October, 2.6" (66mm) of precipitation is accumulated. In Richmond Highlands, during the entire year, the rain falls for 173 days and collects up to 25" (635mm) of precipitation.Snowfall
In Richmond Highlands, Washington, snow does not fall in May through October.Daylight
In October, the average length of the day is 10h and 49min.On the first day of October in Richmond Highlands, sunrise is at 7:09 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:52 pm PDT.
Sunshine
In Richmond Highlands, the average sunshine in October is 5.7h.UV index
In Richmond Highlands, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In October, an average UV index of 3 transforms into the following instructions:
Undertake precautions - Guarding against sun damage is counselled. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Richmond Highlands, WA
- Average high temperature in October: 57.9°F
The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is December (43.3°F).
- Average low temperature in October: 45.9°F
The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is December (35.8°F).
Average pressure in October
Richmond Highlands, WA
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in October
Richmond Highlands, WA
- Average wind speed in October: 4.9mph
The windiest month (with the highest average wind speed) is November (5.9mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in October
Richmond Highlands, WA
- Average humidity in October: 79%
The months with the highest relative humidity are January, February and December (84%).
The month with the lowest relative humidity is July (72%).
Average rainfall in October
Richmond Highlands, WA
- Average rainfall in October: 2.6"
The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in October
Richmond Highlands, WA
- Average rainfall days in October: 15.5 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.8 days).
Average snowfall in October
Richmond Highlands, WA
- Average snowfall in October: 0"
The month with the highest snowfall is February (3.58").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Richmond Highlands, WA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (4.7 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
Richmond Highlands, WA
- Average daylight in October: 10h and 48min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in October: 5h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in October
Richmond Highlands, WA
- Average sunshine days in October: 13.3 days
The month with the most sunshine days is August (22.5 days).
The month with the least sunshine days is November (9.2 days).
Average UV index in October
Richmond Highlands, WA
- Average UV index in October: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Richmond Highlands, WA
- Average cloud cover in October: 40
The months with the most cloud cover are January and December (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in October
Richmond Highlands, WA
- Average visibility in October: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
