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 snowfall in October
- Average snowfall 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 corresponds with a shift in temperature, down from a warm 84°F (28.9°C) in September to a pleasant 71.4°F (21.9°C). October nights see a notable contrast from daytime highs, with the nighttime temperature averaging at a chilly 46.8°F (8.2°C).Humidity
In O'Brien, the average relative humidity in October is 50%.Rainfall
In O'Brien, in October, during 5.3 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. In O'Brien, during the entire year, the rain falls for 102.3 days and collects up to 24.21" (615mm) of precipitation.Snowfall
In O'Brien, snow does not fall in April through October.Daylight
The average length of the day in October in O'Brien is 11h and 6min.On the first day of October, sunrise is at 7:06 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 6:06 pm PDT.
Sunshine
In October, the average sunshine is 7.2h.UV index
The average daily maximum UV index in October is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 4 in October suggests the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October?
What is the average humidity in October?
How many days does it rain in October?
When it does not snow?
Does it snow in October?
What is the average length of the day in October?
What time are sunrise and sunset in October?
How many hours of sunshine does O'Brien have in October?
What is the UV index reading in October?
Average temperature in October
O'Brien, CA
- Average high temperature in October: 71.4°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is December (47.8°F).
- Average low temperature in October: 46.8°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).
Average pressure in October
O'Brien, CA
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in October
O'Brien, CA
- Average wind speed in October: 5.3mph
The windiest months (with the highest average wind speed) are March and October (5.3mph).
The calmest months (with the lowest average wind speed) are August and November (4.5mph).
Average humidity in October
O'Brien, CA
- Average humidity in October: 50%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is August (37%).
Average rainfall in October
O'Brien, CA
- Average rainfall in October: 1.3"
The wettest month (with the highest rainfall) is March (4.8").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in October
O'Brien, CA
- Average rainfall days in October: 5.3 days
The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (1.7 days).
Average snowfall in October
O'Brien, CA
- Average snowfall in October: 0"
The month with the highest snowfall is November (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in October
O'Brien, CA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
O'Brien, CA
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in October: 7h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in October
O'Brien, CA
- Average sunshine days in October: 24.5 days
The month with the most sunshine days is August (27.1 days).
The month with the least sunshine days is March (11.8 days).
Average UV index in October
O'Brien, CA
- Average UV index in October: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in October
O'Brien, CA
- Average cloud cover in October: 17
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in October
O'Brien, CA
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).
O'Brien, California, USA
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