Climate and monthly weather forecast
Rio Oso, CA

Share

Weather in January

January is a refreshing winter month in Rio Oso, California, with an average temperature ranging between max 56.1°F (13.4°C) and min 40.6°F (4.8°C). As Rio Oso steps into January, the average high-temperature is measured at a moderate 56.1°F (13.4°C), displaying minor differences from December's 54.3°F (12.4°C). Weather in January »

Weather in February

February, the last month of the winter in Rio Oso, is also a moderate month, with an average temperature fluctuating between 58.3°F (14.6°C) and 41°F (5°C). Rio Oso registers an average high-temperature of a still refreshing 58.3°F (14.6°C) with the arrival of February, showing minor deviation from the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Rio Oso, is a comfortable month, with an average temperature fluctuating between 43.5°F (6.4°C) and 62.1°F (16.7°C). March is marked by an average high-temperature of an enjoyable 62.1°F (16.7°C), almost identical to the preceding month. Weather in March »

Weather in April

April is an agreeable spring month in Rio Oso, California, with an average temperature fluctuating between 69.4°F (20.8°C) and 46.9°F (8.3°C). April introduces a marginal temperature uplift, with average high-temperatures adjusting from March's enjoyable 62.1°F (16.7°C) 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 Rio Oso, California, with an average temperature varying between 77.5°F (25.3°C) and 52.7°F (11.5°C). May's onset witnesses a minor shift in the average high-temperature, moving from a pleasant 69.4°F (20.8°C) in April to a moderately hot 77.5°F (25.3°C). Weather in May »

Weather in June

June, the first month of the summer in Rio Oso, is a tropical month, with temperature in the range of an average low of 58.8°F (14.9°C) and an average high of 88.7°F (31.5°C). June marks a rise in the average high-temperature, moving from May's moderately hot 77.5°F (25.3°C) to a tropical 88.7°F (31.5°C). Weather in June »

Weather in July

July is a very hot summer month in Rio Oso, California, with an average temperature ranging between max 95.4°F (35.2°C) and min 61.3°F (16.3°C). Temperature readings reach their annual highs in July, averaging 95.4°F (35.2°C) and a minimum average of 61.3°F (16.3°C). Weather in July »

Weather in August

August, the last month of the summer in Rio Oso, is another hot month, with an average temperature ranging between min 60.8°F (16°C) and max 94.6°F (34.8°C). As August takes hold, the average high-temperature is a hot 94.6°F (34.8°C), nearly mirroring that of the previous month. Weather in August »

Weather in September

The first month of the autumn, September, is also a hot month in Rio Oso, California, with an average temperature fluctuating between 59°F (15°C) and 88.9°F (31.6°C). September's arrival aligns with a minor decrease in average high-temperatures, from August's 94.6°F (34.8°C) to a still hot 88.9°F (31.6°C). Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Rio Oso, California, with an average temperature varying between 76.1°F (24.5°C) and 53.1°F (11.7°C). The arrival of October corresponds with a shift in temperature, down from a tropical 88.9°F (31.6°C) in September to a moderately hot 76.1°F (24.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Rio Oso, is also an enjoyable month, with an average temperature varying between 45.3°F (7.4°C) and 63°F (17.2°C). Observing a mild shift, the average high-temperature during November reduces from October's moderately hot 76.1°F (24.5°C) to a comfortable 63°F (17.2°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cool month in Rio Oso, California, with an average temperature ranging between max 54.3°F (12.4°C) and min 40.6°F (4.8°C). Rio Oso's December weather reaches an average high of 54.3°F (12.4°C) and an average low of 40.6°F (4.8°C), making it the coldest month. Weather in December »
[Resources]

Frequently asked questions

How much does it rain in Rio Oso?

In Rio Oso, during the entire year, the rain falls for 78.2 days and collects up to 20.43" (519mm) of precipitation.

When it does not snow in Rio Oso?

January through November are months without snowfall.

How many days does it snow in Rio Oso?

Throughout the year, in Rio Oso, California, there are 0.1 snowfall days.

When is the lowest UV index in Rio Oso?

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Rio Oso, California.

What is the most humid month in Rio Oso?

The most humid month in Rio Oso, California, is March, with an average relative humidity of 75%.

What is the wettest month in Rio Oso?

March is the month with the most rainfall in Rio Oso. Rain falls for 14.3 days and accumulates 3.9" (99mm) of precipitation.

When is Daylight Saving Time (DST) in Rio Oso?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Rio Oso, California, 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 Rio Oso?

June has the longest days of the year in Rio Oso, California, with an average of 14h and 54min of daylight.

What is the month with the highest UV index in Rio Oso?

The months with the highest UV index in Rio Oso are June and July, with an average maximum UV index of 7.

What is the warmest month in Rio Oso?

July, with average temperatures reaching a high of 95.4°F (35.2°C) and a low of 61.3°F (16.3°C), is the warmest month.

What is the least humid month in Rio Oso?

July is the least humid month in Rio Oso, California, with an average relative humidity of 39%.

What is the driest month in Rio Oso?

July and August are months with the least rain when the rain falls for 1 days and typically aggregates up to 0.04" (1mm) of rain.

What month has the most sunshine in Rio Oso?

July has the most sunshine of the year in Rio Oso, California, with an average of 12.1h of sunshine.

What is the coldest month in Rio Oso?

In Rio Oso, December registers the lowest temperatures, averaging 54.3°F (12.4°C) at the peak and 40.6°F (4.8°C) at the lowest.

When does it snow in Rio Oso?

The only month with snowfall in Rio Oso is December.

When does it snow the most in Rio Oso?

The month with the most snowfall days in Rio Oso is December, when snow falls for 0.1 days.

What is the month with the shortest days in Rio Oso?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

What is the month with the least sunshine in Rio Oso?

The month with the least sunshine in Rio Oso is December, with an average of 5.5h of sunshine.

Average temperature
Rio Oso, CA

Average temperature - Rio Oso, CA

The warmest month (with the highest average high temperature) is July (95.4°F).
The month with the lowest average high temperature is December (54.3°F).

The month with the highest average low temperature is July (61.3°F).
The coldest months (with the lowest average low temperature) are January and December (40.6°F).

[Resources]

Average pressure
Rio Oso, CA

Average pressure - Rio Oso, CA

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

[Resources]

Average wind speed
Rio Oso, CA

Average wind speed - Rio Oso, CA

The windiest months (with the highest average wind speed) are March and May (6.2mph).
The calmest month (with the lowest average wind speed) is November (4.8mph).

[Resources]

Average rainfall
Rio Oso, CA

Average rainfall - Rio Oso, CA

The wettest month (with the highest rainfall) is March (3.9").
The driest months (with the least rainfall) are July and August (0.04").

[Resources]

Average rainfall days
Rio Oso, CA

Average rainfall days - Rio Oso, CA

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is July (1 days).

[Resources]

Average snowfall days
Rio Oso, CA

Average snowfall days - Rio Oso, CA

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).

[Resources]

Average daylight / Average sunshine
Rio Oso, CA

Average daylight / Average sunshine - Rio Oso, CA

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

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 30min).

[Resources]

Average sunshine days
Rio Oso, CA

Average sunshine days - Rio Oso, CA

The month with the most sunshine days is July (30 days).
The month with the least sunshine days is March (16.1 days).

[Resources]

Average UV index
Rio Oso, CA

Average UV index - Rio Oso, CA

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

[Resources]

Average visibility
Rio Oso, CA

Average visibility - Rio Oso, 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).

[Resources]

Rio Oso, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location