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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 is a mild winter month in Rio Oso, California, with temperature in the range of an average high of 56.1°F (13.4°C) and an average low of 40.6°F (4.8°C). Rio Oso greets January with an average high-temperature of a moderate 56.1°F (13.4°C), marking a slight deviation from the preceding month. Weather in January »
Weather in February
The last month of the winter, February, is also a moderate month in Rio Oso, California, with an average temperature fluctuating between 58.3°F (14.6°C) and 41°F (5°C). The advent of February observes an average high-temperature of a still refreshing 58.3°F (14.6°C), nearly identical to January's 56.1°F (13.4°C). Weather in February »
Weather in March
The first month of the spring, March, is an enjoyable month in Rio Oso, California, with an average temperature ranging between min 43.5°F (6.4°C) and max 62.1°F (16.7°C). The arrival of March is marked by an average high-temperature of an enjoyable 62.1°F (16.7°C), bearing a close resemblance to February. Weather in March »
Weather in April
April in Rio Oso, California, is a pleasant spring month, with an average temperature ranging between min 46.9°F (8.3°C) and max 69.4°F (20.8°C). April brings a slight elevation in the average high-temperature, transitioning from March's refreshing 62.1°F (16.7°C) to an agreeable 69.4°F (20.8°C). Weather in April »
Weather in May
May, the last month of the spring in Rio Oso, is a warm month, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 77.5°F (25.3°C). The shift from April to May is marked by a slight increase in the average high-temperature, moving from an agreeable 69.4°F (20.8°C) 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 hot month, with an average temperature ranging between min 58.8°F (14.9°C) and max 88.7°F (31.5°C). The onset of June brings a temperature shift, with the average high-temperature moving from a warm 77.5°F (25.3°C) in May 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 temperature in the range of an average high of 95.4°F (35.2°C) and an average low of 61.3°F (16.3°C). 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. Weather in July »
Weather in August
August, the last month of the summer in Rio Oso, is also a hot month, with an average temperature ranging between max 94.6°F (34.8°C) and min 60.8°F (16°C). The arrival of August brings an average high-temperature of a hot 94.6°F (34.8°C), subtly diverging from July's 95.4°F (35.2°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a hot month in Rio Oso, California, with temperature in the range of an average high of 88.9°F (31.6°C) and an average low of 59°F (15°C). The average high-temperature slightly decreases in September, shifting from 94.6°F (34.8°C) in August 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 ranging between min 53.1°F (11.7°C) and max 76.1°F (24.5°C). October comes with a drop in the average high-temperature, falling from September's tropical 88.9°F (31.6°C) to a warm 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 temperature in the range of an average high of 63°F (17.2°C) and an average low of 45.3°F (7.4°C). November suggests a modest reduction in the average high-temperature, shifting from a moderately hot 76.1°F (24.5°C) in October to a refreshing 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 temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 54.3°F (12.4°C). Temperature records mark December as the coldest month, with highs averaging 54.3°F (12.4°C) and lows at 40.6°F (4.8°C). Weather in December »
Updated: Aug 25, 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
How many days does it rain?
Throughout the year, there are 78.2 rainfall days, and 20.43" (519mm) of precipitation is accumulated.
When it does not snow?
January through November are months without snowfall.
How many days does it snow?
Throughout the year, there are 0.1 snowfall days.
When is the lowest UV index?
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index.
What is the most humid month in Rio Oso?
The most humid month is March, with an average relative humidity of 75%.
What is the rainiest month?
The month with the most rainfall is March, when the rain falls for 14.3 days and typically aggregates up to 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, 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?
The month with the longest days in Rio Oso, California, is June, with an average of 14h and 54min of daylight.
What are the months with the highest UV index in Rio Oso?
The months with the highest UV index are June and July, with an average maximum UV index of 7.
What month is the hottest?
In Rio Oso, the average highest temperatures are observed in July, with a high of 95.4°F (35.2°C) and a low of 61.3°F (16.3°C).
What is the least humid month?
July is the least humid month, with an average relative humidity of 39%.
What is the driest month?
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?
With an average of 12.1h of sunshine, July has the most sunshine of the year.
What part of the year is the coldest?
The coldest time of the year in Rio Oso, California, is December, with temperatures averaging a high of 54.3°F (12.4°C) and a low of 40.6°F (4.8°C).
When does it snow?
The only month with snowfall is December.
When does it snow the most?
December has the most snowfall days of the year. Snow falls for 0.1 days.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 30min of daylight.
What is the month with the least sunshine?
December has the least sunshine of the year, with an average of 5.5h of sunshine.
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).
Average pressure
Rio Oso, CA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.91"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Rio Oso, CA
- Average wind speed in January:
5.1mph - Average wind speed in February:
6mph - Average wind speed in March:
6.2mph - Average wind speed in April:
6mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.5mph - Average wind speed in September:
5mph - Average wind speed in October:
5.2mph - Average wind speed in November:
4.8mph - Average wind speed in December:
5.3mph
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).
Average humidity
Rio Oso, CA
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (39%).
Average rainfall
Rio Oso, CA
- Average rainfall in January:
2.87" - Average rainfall in February:
3.58" - Average rainfall in March:
3.9" - Average rainfall in April:
1.46" - Average rainfall in May:
1.14" - Average rainfall in June:
0.28"
The wettest month (with the highest rainfall) is March (3.9").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days
Rio Oso, CA
- Average rainfall days in January:
9.7 days - Average rainfall days in February:
9.6 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
9.4 days - Average rainfall days in May:
5.7 days - Average rainfall days in June:
1.8 days
- Average rainfall days in July:
1 days - Average rainfall days in August:
1.2 days - Average rainfall days in September:
2.2 days - Average rainfall days in October:
4.1 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
10.7 days
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).
Average snowfall days
Rio Oso, 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
Rio Oso, 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 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - 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 3min
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).
- Average sunshine in January:
5h and 4min - Average sunshine in February:
5h and 5min - Average sunshine in March:
7h and 2min - Average sunshine in April:
9h and 5min - Average sunshine in May:
10h and 5min - Average sunshine in June:
11h and 4min
- 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 0min - Average sunshine in November:
6h and 1min - Average sunshine in December:
5h and 3min
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).
Average sunshine days
Rio Oso, CA
- Average sunshine days in January:
20.3 days - Average sunshine days in February:
18 days - Average sunshine days in March:
16.1 days - Average sunshine days in April:
19.3 days - Average sunshine days in May:
24.2 days - Average sunshine days in June:
28 days
- Average sunshine days in July:
30 days - Average sunshine days in August:
29.5 days - Average sunshine days in September:
26.9 days - Average sunshine days in October:
25.9 days - Average sunshine days in November:
21.1 days - Average sunshine days in December:
19.3 days
The month with the most sunshine days is July (30 days).
The month with the least sunshine days is March (16.1 days).
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).
Average cloud cover
Rio Oso, CA
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 4).
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).
Rio Oso, California, USA
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