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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January in Oakley, California, is a moderate winter month, with an average temperature fluctuating between 56.1°F (13.4°C) and 41.5°F (5.3°C). The arrival of January sees an average high-temperature of a mild 56.1°F (13.4°C), hardly diverging from December's 55°F (12.8°C). Weather in January »
Weather in February
February, the last month of the winter in Oakley, is also a moderate month, with an average temperature fluctuating between 42.4°F (5.8°C) and 59.7°F (15.4°C). February's arrival registers an average high-temperature of a still mild 59.7°F (15.4°C), closely aligning with the temperature of the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a comfortable month in Oakley, California, with temperature in the range of an average high of 63.5°F (17.5°C) and an average low of 43.9°F (6.6°C). March's presence marks an average high-temperature of a still refreshing 63.5°F (17.5°C), subtly varied from February's 59.7°F (15.4°C). Weather in March »
Weather in April
April is a pleasant spring month in Oakley, California, with an average temperature fluctuating between 46.6°F (8.1°C) and 69.4°F (20.8°C). The shift into April brings a slight increase in the average high-temperature, moving from an enjoyable 63.5°F (17.5°C) in March to an agreeable 69.4°F (20.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Oakley, California, with an average temperature ranging between min 50.5°F (10.3°C) and max 75.6°F (24.2°C). May's onset brings a minor rise in the average high-temperature, moving from an agreeable 69.4°F (20.8°C) in April to a moderately hot 75.6°F (24.2°C). Weather in May »
Weather in June
The first month of the summer, June, is still a warm month in Oakley, California, with an average temperature fluctuating between 55°F (12.8°C) and 84.4°F (29.1°C). With the onset of June, Oakley's weather sees a minor temperature rise, transitioning from a moderately hot 75.6°F (24.2°C) in May to a still warm 84.4°F (29.1°C). Weather in June »
Weather in July
July in Oakley, California, is a tropical summer month, with an average temperature varying between 56.5°F (13.6°C) and 88.5°F (31.4°C). In Oakley, the peak temperatures are generally noted in July, averaging a high of 88.5°F (31.4°C) and a low of 56.5°F (13.6°C). July's average heat index is estimated at a hot 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Oakley, is also a hot month, with temperature in the range of an average high of 87.4°F (30.8°C) and an average low of 57.4°F (14.1°C). August's climate shows a minor adjustment in average high-temperatures to a still tropical 87.4°F (30.8°C) from July's 88.5°F (31.4°C). Weather in August »
Weather in September
September, the first month of the autumn in Oakley, is also a moderately hot month, with temperature in the range of an average high of 85.3°F (29.6°C) and an average low of 57.7°F (14.3°C). The advent of September signifies a minor shift to an average high-temperature of a warm 85.3°F (29.6°C), aligning closely with August. Weather in September »
Weather in October
October, like September, in Oakley, California, is another warm autumn month, with an average temperature varying between 54°F (12.2°C) and 75.9°F (24.4°C). October brings a minor decrease, with the average high-temperature reducing from 85.3°F (29.6°C) in September to a still warm 75.9°F (24.4°C). Weather in October »
Weather in November
The last month of the autumn, November, is another comfortable month in Oakley, California, with an average temperature ranging between min 46.6°F (8.1°C) and max 63.9°F (17.7°C). November weather is marked by a drop in the average high-temperature, falling from a moderately hot 75.9°F (24.4°C) in October to an enjoyable 63.9°F (17.7°C). Weather in November »
Weather in December
The first month of the winter, December, is also a fresh month in Oakley, California, with an average temperature fluctuating between 41.7°F (5.4°C) and 55°F (12.8°C). Oakley's December weather, with an average high temperature of 55°F (12.8°C) and an average low temperature of 41.7°F (5.4°C), tends to be the coldest of the year. Weather in December »
Updated: Feb 9, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the most humid month in Oakley?
With an average relative humidity of 74%, January is the most humid month.
How much does it rain in Oakley?
In Oakley, California, during the entire year, the rain falls for 62 days and collects up to 10.16" (258mm) of precipitation.
When it does not snow in Oakley?
January through November are months without snowfall in Oakley.
How many days does it snow in Oakley?
Throughout the year, in Oakley, there are 0.1 snowfall days.
What are the months with the lowest UV index in Oakley?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.
What is the rainiest month in Oakley?
The month with the most rainfall is February, when the rain falls for 7.8 days and typically aggregates up to 2.09" (53mm) of precipitation.
When is Daylight Saving Time (DST) in Oakley?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Oakley, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
When are the longest days in Oakley?
With an average of 14h and 48min of daylight, June has the longest days of the year.
What are the months with the highest UV index in Oakley?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What is the hottest time of year in Oakley?
Oakley registers the average highest temperatures during July, with peaks of 88.5°F (31.4°C) and lows of 56.5°F (13.6°C).
What is the driest month in Oakley?
The months with the least rainfall in Oakley are July and August Rain falls for 1.3 days and accumulates 0.04" (1mm) of rain.
What month has the most sunshine in Oakley?
July has the most sunshine of the year in Oakley, California, with an average of 12.1h of sunshine.
What is the least humid month in Oakley?
September is the least humid month in Oakley, with an average relative humidity of 52%.
What is the coldest month in Oakley?
Temperature records mark December as the coldest month, with highs averaging 55°F (12.8°C) and lows at 41.7°F (5.4°C).
When does it snow in Oakley?
The only month with snowfall is December.
What is the snowiest month in Oakley?
The month with the most snowfall days in Oakley, California, is December, when snow falls for 0.1 days.
What is the month with the shortest days in Oakley?
December has the shortest days of the year, with an average of 9h and 36min of daylight.
What is the month with the least sunshine in Oakley?
The month with the least sunshine is December, with an average of 5.8h of sunshine.
Average temperature
Oakley, CA
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (55°F).
The month with the highest average low temperature is September (57.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure
Oakley, CA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.11"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
Oakley, CA
- Average wind speed in January:
4.5mph - Average wind speed in February:
5.7mph - Average wind speed in March:
6mph - Average wind speed in April:
6.8mph - Average wind speed in May:
7.6mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
7.5mph - Average wind speed in August:
7mph - Average wind speed in September:
6.2mph - Average wind speed in October:
5.5mph - Average wind speed in November:
4.5mph - Average wind speed in December:
5mph
The windiest month (with the highest average wind speed) is June (7.8mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).
Average humidity
Oakley, CA
The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is September (52%).
Average rainfall
Oakley, CA
- Average rainfall in January:
1.89" - Average rainfall in February:
2.09" - Average rainfall in March:
1.77" - Average rainfall in April:
0.55" - Average rainfall in May:
0.43" - Average rainfall in June:
0.08"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.08" - Average rainfall in October:
0.51" - Average rainfall in November:
1.1" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is February (2.09").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days
Oakley, CA
- Average rainfall days in January:
8.6 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
6.3 days - Average rainfall days in May:
4 days - Average rainfall days in June:
1.3 days
- Average rainfall days in July:
1.3 days - Average rainfall days in August:
0.8 days - Average rainfall days in September:
1.3 days - Average rainfall days in October:
3.3 days - Average rainfall days in November:
5.7 days - Average rainfall days in December:
9.3 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (0.8 days).
Average snowfall days
Oakley, CA
- Average snowfall days in January:
0 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.1 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Oakley, CA
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 3min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
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 January:
6h and 0min - Average sunshine in February:
6h and 1min - Average sunshine in March:
7h and 5min - Average sunshine in April:
10h and 2min - Average sunshine in May:
11h and 1min - Average sunshine in June:
11h and 5min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
11h and 5min - Average sunshine in September:
11h and 1min - Average sunshine in October:
7h and 1min - Average sunshine in November:
6h and 4min - Average sunshine in December:
5h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days
Oakley, CA
- Average sunshine days in January:
21.8 days - Average sunshine days in February:
19.8 days - Average sunshine days in March:
17.7 days - Average sunshine days in April:
22.8 days - Average sunshine days in May:
26.6 days - Average sunshine days in June:
28.5 days
- Average sunshine days in July:
29.7 days - Average sunshine days in August:
29.8 days - Average sunshine days in September:
28.5 days - Average sunshine days in October:
26.9 days - Average sunshine days in November:
23.7 days - Average sunshine days in December:
21.1 days
The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (17.7 days).
Average UV index
Oakley, CA
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover
Oakley, CA
The months with the most cloud cover are March and December (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility
Oakley, CA
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).
Oakley, California, USA
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