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
October is characterized by a noticeable reduction in the average high-temperature, falling from a pleasant 70.9°F (21.6°C) in September to a fresh 54.9°F (12.7°C). Riverside cools down to an average low-temperature of 37.2°F (2.9°C) throughout the month of October.Humidity
In October, the average relative humidity in Riverside, Washington, is 67%.Rainfall
In October, in Riverside, Washington, the rain falls for 7.9 days. Throughout October, 0.59" (15mm) of precipitation is accumulated. In Riverside, during the entire year, the rain falls for 90.2 days and collects up to 7.56" (192mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in October is 10h and 47min.On the first day of the month, sunrise is at 6:58 am and sunset at 6:36 pm. On the last day of October, in Riverside, sunrise is at 7:43 am and sunset at 5:39 pm PDT.
Sunshine
In Riverside, the average sunshine in October is 6.7h.UV index
The average daily maximum UV index in October in Riverside is 3. 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 daily UV index of 3 turns into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Riverside in October?
What is the average humidity in October in Riverside?
How much does it rain in Riverside in October?
When it does not snow in Riverside?
Does it snow in Riverside in October?
What is the average length of the day in October in Riverside?
What time are sunrise and sunset in October in Riverside?
How long on average sun shines in October in Riverside?
How high is the UV index in October in Riverside?
Average temperature in October
Riverside, WA
- Average high temperature in October: 54.9°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is December (30.4°F).
- Average low temperature in October: 37.2°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).
Average pressure in October
Riverside, WA
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in October
Riverside, WA
- Average wind speed in October: 4.6mph
The windiest month (with the highest average wind speed) is April (5.1mph).
The calmest month (with the lowest average wind speed) is January (4mph).
Average humidity in October
Riverside, WA
- Average humidity in October: 67%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are July and August (42%).
Average rainfall in October
Riverside, WA
- Average rainfall in October: 0.59"
The wettest month (with the highest rainfall) is December (0.94").
The driest months (with the least rainfall) are July and August (0.2").
Average rainfall days in October
Riverside, WA
- Average rainfall days in October: 7.9 days
The month with the highest number of rainy days is March (11.5 days).
The month with the least rainy days is August (2.8 days).
Average snowfall in October
Riverside, WA
- Average snowfall in October: 0"
The month with the highest snowfall is January (3.39").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Riverside, WA
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is December (8.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Riverside, WA
- Average daylight in October: 10h and 5min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in October: 6h and 4min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in October
Riverside, WA
- Average sunshine days in October: 20.7 days
The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is November (15.4 days).
Average UV index in October
Riverside, WA
- Average UV index in October: 3
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in October
Riverside, WA
- Average cloud cover in October: 29
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in October
Riverside, WA
- Average visibility in October: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Riverside, Washington, USA
Weather forecast for your location
2. Allow the app to use your location