October weather forecastWalnut Creek, CA
October
Weather in October
October, like September, in Walnut Creek, California, is a moderately hot autumn month, with an average temperature ranging between max 74.1°F (23.4°C) and min 54.3°F (12.4°C).Temperature
In Walnut Creek, the average high-temperature in October slightly decreases from 81.5°F (27.5°C) in September to a still warm 74.1°F (23.4°C). Walnut Creek, in the month of October, anticipates a consistent average low-temperature of 54.3°F (12.4°C).Humidity
The months with the lowest humidity are September and October, with an average relative humidity of 58%.Rainfall
In October, the rain falls for 4.4 days. Throughout October, 0.47" (12mm) of precipitation is accumulated. In Walnut Creek, during the entire year, the rain falls for 68.7 days and collects up to 11.26" (286mm) of precipitation.Daylight
In Walnut Creek, the average length of the day in October is 11h and 12min.On the first day of the month, sunrise is at 7:04 am and sunset at 6:50 pm. On the last day of October, in Walnut Creek, California, sunrise is at 7:33 am and sunset at 6:10 pm PDT.
Sunshine
In Walnut Creek, the average sunshine in October is 7.1h.UV index
In October, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 4 during October translates into the following guidance:
Take necessary precautions - Defending against sun damage is advocated. To guard against the harmful effects of the Sun, minimize exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Walnut Creek, CA
- Average high temperature in October: 74.1°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is December (55.4°F).
- Average low temperature in October: 54.3°F
The month with the highest average low temperature is September (57.2°F).
The coldest months (with the lowest average low temperature) are January and December (42.4°F).
Average pressure in October
Walnut Creek, CA
- Average pressure in October: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Walnut Creek, CA
- Average wind speed in October: 4.8mph
The windiest month (with the highest average wind speed) is May (7.3mph).
The calmest month (with the lowest average wind speed) is November (4.4mph).
Average humidity in October
Walnut Creek, CA
- Average humidity in October: 58%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are September and October (58%).
Average rainfall in October
Walnut Creek, CA
- Average rainfall in October: 0.47"
The wettest month (with the highest rainfall) is February (2.4").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in October
Walnut Creek, CA
- Average rainfall days in October: 4.4 days
The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is August (0.8 days).
Average daylight in October /
Average sunshine in October
Walnut Creek, CA
- Average daylight in October: 11h and 12min
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 36min).
- Average sunshine in October: 7h and 6min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in October
Walnut Creek, CA
- Average sunshine days in October: 25.8 days
The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is March (17.5 days).
Average UV index in October
Walnut Creek, CA
- Average UV index in October: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in October
Walnut Creek, CA
- Average cloud cover in October: 17
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in October
Walnut Creek, 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).
