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
As Simi Valley enters October, the average high-temperature subtly lowers from the 79.7°F (26.5°C) of September to a still warm 74.1°F (23.4°C). Simi Valley's nighttime temperature in October drops to an average of 57.6°F (14.2°C).Humidity
The average relative humidity in October is 51%.Rainfall
In Simi Valley, in October, during 3.5 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. In Simi Valley, during the entire year, the rain falls for 53.7 days and collects up to 9.61" (244mm) of precipitation.Daylight
In October, the average length of the day is 11h and 19min.On the first day of October, sunrise is at 6:50 am and sunset at 6:38 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 6:02 pm PDT.
Sunshine
In Simi Valley, the average sunshine in October is 8.4h.UV index
The average daily maximum UV index in October is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: During October, 5 as the daily maximum UV index converts into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures in Simi Valley?
What is the average humidity in October?
How many days does it rain in October?
What is the average length of the day in October?
When are sunrise and sunset in October?
How many hours of sunshine does Simi Valley have in October?
How high is the UV index in October?
Average temperature in October
Simi Valley, CA
- Average high temperature in October: 74.1°F
The warmest month (with the highest average high temperature) is August (82.2°F).
The month with the lowest average high temperature is December (60.1°F).
- Average low temperature in October: 57.6°F
The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is December (46.4°F).
Average pressure in October
Simi Valley, CA
- Average pressure in October: 29.96"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in October
Simi Valley, CA
- Average wind speed in October: 5.5mph
The windiest month (with the highest average wind speed) is December (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in October
Simi Valley, CA
- Average humidity in October: 51%
The month with the highest relative humidity is June (62%).
The month with the lowest relative humidity is November (50%).
Average rainfall in October
Simi Valley, CA
- Average rainfall in October: 0.31"
The wettest month (with the highest rainfall) is February (1.93").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in October
Simi Valley, CA
- Average rainfall days in October: 3.5 days
The month with the highest number of rainy days is March (8 days).
The months with the least rainy days are June and August (1.5 days).
Average daylight in October /
Average sunshine in October
Simi Valley, CA
- Average daylight in October: 11h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in October: 8h and 2min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).
Average sunshine days in October
Simi Valley, CA
- Average sunshine days in October: 25.3 days
The month with the most sunshine days is August (25.4 days).
The month with the least sunshine days is February (20.9 days).
Average UV index in October
Simi Valley, CA
- Average UV index in October: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in October
Simi Valley, CA
- Average cloud cover in October: 10
The month with the most cloud cover is March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in October
Simi Valley, 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).
Simi Valley, California, USA
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