October weather forecastRio Dell, CA
October
Weather in October
October, like September, in Rio Dell, California, is another refreshing autumn month, with temperature in the range of an average high of 66.2°F (19°C) and an average low of 47.8°F (8.8°C).Temperature
The shift from September to October includes a minor decrease in the average high-temperature, lightly dropping from an agreeable 72.5°F (22.5°C) to a comfortable 66.2°F (19°C). October nights cool down to an average low-temperature of 47.8°F (8.8°C).Humidity
In Rio Dell, the average relative humidity in October is 74%.Rainfall
In October, the rain falls for 8 days. Throughout October, 1.89" (48mm) of precipitation is accumulated. Throughout the year, there are 110.9 rainfall days, and 28.27" (718mm) of precipitation is accumulated.Snowfall
January, March through December are months without snowfall.Daylight
The average length of the day in October is 11h and 7min.On the first day of October, sunrise is at 7:13 am and sunset at 6:57 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 6:13 pm PDT.
Sunshine
In October, the average sunshine is 6.6h.UV index
The average daily maximum UV index in October is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index, 4 during October, leads to the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Rio Dell, CA
- Average high temperature in October: 66.2°F
The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is December (52.9°F).
- Average low temperature in October: 47.8°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is February (39.7°F).
Average pressure in October
Rio Dell, CA
- Average pressure in October: 30.03"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are August and September (29.96"Hg).
Average wind speed in October
Rio Dell, CA
- Average wind speed in October: 6.5mph
The windiest month (with the highest average wind speed) is June (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in October
Rio Dell, CA
- Average humidity in October: 74%
The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is September (73%).
Average rainfall in October
Rio Dell, CA
- Average rainfall in October: 1.89"
The wettest month (with the highest rainfall) is December (4.96").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in October
Rio Dell, CA
- Average rainfall days in October: 8 days
The month with the highest number of rainy days is March (17.3 days).
The months with the least rainy days are July and August (1.8 days).
Average snowfall in October
Rio Dell, CA
- Average snowfall in October: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in October
Rio Dell, CA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in October /
Average sunshine in October
Rio Dell, CA
- Average daylight in October: 11h and 6min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in October: 6h and 36min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in October
Rio Dell, CA
- Average sunshine days in October: 22.1 days
The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (11.9 days).
Average UV index in October
Rio Dell, CA
- Average UV index in October: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in October
Rio Dell, CA
- Average cloud cover in October: 26
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in October
Rio Dell, CA
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).





