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 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
The arrival of October signals a subtle shift in temperature, down from a warm 79.3°F (26.3°C) in September to a pleasant 72.3°F (22.4°C). Nighttime temperature lowers to an average of 51.8°F (11°C) in October.Humidity
The average relative humidity in October is 64%.Rainfall
In South Santa Rosa, in October, during 2.5 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. Throughout the year, there are 44.3 rainfall days, and 3.78" (96mm) of precipitation is accumulated.Daylight
In October, the average length of the day is 11h and 11min.On the first day of the month, sunrise is at 7:07 am and sunset at 6:53 pm. On the last day of October, sunrise is at 7:37 am and sunset at 6:11 pm PDT.
Sunshine
In October, the average sunshine in South Santa Rosa, California, is 7h.UV index
In October, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 4 in October interprets into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures?
What is the average humidity in October in South Santa Rosa?
How much does it rain in October?
How many hours of daylight does South Santa Rosa have in October?
When are sunrise and sunset in October?
How many hours of sunshine does South Santa Rosa have in October?
What is the UV index reading in October?
Average temperature in October
South Santa Rosa, CA
- Average high temperature in October: 72.3°F
The warmest months (with the highest average high temperature) are July and August (79.9°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in October: 51.8°F
The months with the highest average low temperature are August and September (55°F).
The coldest month (with the lowest average low temperature) is December (42.4°F).
Average pressure in October
South Santa Rosa, CA
- Average pressure in October: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in October
South Santa Rosa, CA
- Average wind speed in October: 4.9mph
The windiest month (with the highest average wind speed) is May (6.8mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).
Average humidity in October
South Santa Rosa, CA
- Average humidity in October: 64%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (62%).
Average rainfall in October
South Santa Rosa, CA
- Average rainfall in October: 0.16"
The wettest month (with the highest rainfall) is February (0.91").
The driest months (with the least rainfall) are June, July, August and September (0.04").
Average rainfall days in October
South Santa Rosa, CA
- Average rainfall days in October: 2.5 days
The month with the highest number of rainy days is March (8.7 days).
The month with the least rainy days is August (0.5 days).
Average daylight in October /
Average sunshine in October
South Santa Rosa, CA
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in October: 7h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in October
South Santa Rosa, CA
- Average sunshine days in October: 26.8 days
The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is March (20.8 days).
Average UV index in October
South Santa Rosa, CA
- Average UV index in October: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in October
South Santa Rosa, CA
- Average cloud cover in October: 18
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in October
South Santa Rosa, CA
- 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).
South Santa Rosa, California, USA
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