October weather forecastOnyx, CA
October
Weather in October
October, like September, in Onyx, California, is another comfortable autumn month, with temperature in the range of an average high of 67.5°F (19.7°C) and an average low of 45°F (7.2°C).Temperature
The arrival of October corresponds with a reduction in the average high-temperature, down from September's moderately hot 78.6°F (25.9°C) to a refreshing 67.5°F (19.7°C). Onyx documents a marked decrease from day to night, with an average low of 45°F (7.2°C) throughout October.Humidity
The average relative humidity in October is 42%.Rainfall
In Onyx, during October, the rain falls for 2.8 days and regularly aggregates up to 0.35" (9mm) of precipitation. Throughout the year, in Onyx, there are 61 rainfall days, and 11.81" (300mm) of precipitation is accumulated.Snowfall
In Onyx, California, snow does not fall in May through October.Daylight
The average length of the day in October is 11h and 16min.On the first day of October, sunrise is at 6:48 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:58 pm PDT.
Sunshine
The average sunshine in October is 8.4h.UV index
The average daily maximum UV index in October in Onyx is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during October translates into these guidelines:
Take precautions - Protection against skin and eye damage is obliged. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Onyx, CA
- Average high temperature in October: 67.5°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is December (48.7°F).
- Average low temperature in October: 45°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is December (30.9°F).
Average pressure in October
Onyx, CA
- Average pressure in October: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in October
Onyx, CA
- Average wind speed in October: 5.6mph
The windiest months (with the highest average wind speed) are May and June (7.3mph).
The calmest months (with the lowest average wind speed) are January and September (5.4mph).
Average humidity in October
Onyx, CA
- Average humidity in October: 42%
The month with the highest relative humidity is February (59%).
The month with the lowest relative humidity is August (31%).
Average rainfall in October
Onyx, CA
- Average rainfall in October: 0.35"
The wettest month (with the highest rainfall) is January (2.48").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in October
Onyx, CA
- Average rainfall days in October: 2.8 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is June (1.3 days).
Average snowfall in October
Onyx, CA
- Average snowfall in October: 0"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Onyx, CA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Onyx, CA
- Average daylight in October: 11h and 18min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- 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 42min).
Average sunshine days in October
Onyx, CA
- Average sunshine days in October: 27.3 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (19 days).
Average UV index in October
Onyx, CA
- Average UV index in October: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in October
Onyx, CA
- Average cloud cover in October: 10
The month with the most cloud cover is March (Cloud cover 26).
The months with the least cloud cover are August and September (Cloud cover 5).
Average visibility in October
Onyx, 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).





