Oakley, CA Climate

Oakley, CA has a warm-summer Mediterranean climate, which is typified by hot and dry summers and mild, wet winters. Average high temperatures in the summer months reach into the mid-90s Fahrenheit and average lows in the winter months dip down to around 40°F. The area offers typically low humidity levels year round, making it comfortable for outdoor activities all year long. Rainfall occurs mainly during the winter months with limited rain during the summer months. Overall, residents of Oakley enjoy pleasant weather that allows them to easily explore local attractions or enjoy outdoor activities whenever they choose.

Oakley, California gets 14 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Oakley averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 259 sunny days per year in Oakley. The US average is 205 sunny days.

Oakley gets some kind of precipitation, on average, 57 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 91 degrees
Winter Low: the January low is 39
Rain: averages 14 inches of rain a year
Snow: averages 0 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Oakley is 8.5 (10=best), which means it is more comfortable than most places in California.

8.9 Summer - 7.3 Winter

May, June and October are the most pleasant months in Oakley, while January and December are the least comfortable months.

Climate	Oakley, California	United States
	Unlock	38.1 in.
	0.0 in.	Unlock
	Unlock	106.2 days
	259 days	Unlock
	90.5°	85.8°
	Unlock	21.7°
	8.5	Unlock
	Unlock	4.3
	20 ft.	Unlock

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Oakley with an average high temperature of 90.5°, which ranks it as about average compared to other places in California. In Oakley, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Oakley are May, October and April.

In Oakley, there are 56.4 days annually when the high temperature is over 90°, which is about average compared to other places in California.

January has the coldest nighttime temperatures for Oakley with an average of 39.3°. This is warmer than most places in California.

In Oakley, there are 8.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Oakley, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

Humidity in Oakley is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are August, July and September.

January is the wettest month in Oakley with 2.8 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 57% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 14.1 inches in Oakley means that it is drier than most places in California.

January is the rainiest month in Oakley with 10.6 days of rain, and July is the driest month with only 0.1 rainy days. There are 56.6 rainy days annually in Oakley, which is about average compared to other places in California. The rainiest season is Spring when it rains 53% of the time and the driest is Autumn with only a 2% chance of a rainy day.

There is rarely any recorded snowfall in Oakley, ranking it as one of the least snowy places in California. Any measurable snowfall is a rare occurance in Oakley.