October weather forecastSylmar, CA
October
Weather in October
October, the same as September, is another warm autumn month in Sylmar, California, with an average temperature fluctuating between 76.5°F (24.7°C) and 58.5°F (14.7°C).Temperature
A minor decrease in the average high-temperature is observed during October, shifting from a warm 83.1°F (28.4°C) in September to a still moderately hot 76.5°F (24.7°C). Throughout October, Sylmar experiences a low-temperature average of 58.5°F (14.7°C).Humidity
The average relative humidity in October is 48%.Rainfall
In Sylmar, during October, the rain falls for 2.9 days and regularly aggregates up to 0.2" (5mm) of precipitation. Throughout the year, there are 39.8 rainfall days, and 7.52" (191mm) of precipitation is accumulated.Daylight
The average length of the day in October is 11h and 19min.On the first day of October, sunrise is at 6:48 am and sunset at 6:37 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:01 pm PDT.
Sunshine
In October, the average sunshine is 8.4h.UV index
In October, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 5 during October translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Sylmar, CA
- Average high temperature in October: 76.5°F
The warmest month (with the highest average high temperature) is August (85.8°F).
The month with the lowest average high temperature is December (61.7°F).
- Average low temperature in October: 58.5°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is December (46.2°F).
Average pressure in October
Sylmar, CA
- Average pressure in October: 29.95"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in October
Sylmar, CA
- Average wind speed in October: 5.1mph
The windiest months (with the highest average wind speed) are January and December (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in October
Sylmar, CA
- Average humidity in October: 48%
The month with the highest relative humidity is June (58%).
The month with the lowest relative humidity is November (47%).
Average rainfall in October
Sylmar, CA
- Average rainfall in October: 0.2"
The wettest month (with the highest rainfall) is February (1.54").
The driest month (with the least rainfall) is June (0").
Average rainfall days in October
Sylmar, CA
- Average rainfall days in October: 2.9 days
The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.8 days).
Average daylight in October /
Average sunshine in October
Sylmar, CA
- Average daylight in October: 11h and 18min
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 24min
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
Sylmar, CA
- Average sunshine days in October: 27.1 days
The month with the most sunshine days is May (28.8 days).
The month with the least sunshine days is February (22.9 days).
Average UV index in October
Sylmar, CA
- Average UV index in October: 5
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in October
Sylmar, CA
- Average cloud cover in October: 10
The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in October
Sylmar, 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).





