Monthly weather forecast and climate
Ione, CA

Weather in January

January is a moderate winter month in Ione, California, with average temperature ranging between min 40.1°F (4.5°C) and max 56.1°F (13.4°C). In Ione, the average high-temperature in January is essentially the same as in December - a moderate 56.1°F (13.4°C). Weather in January »

Weather in February

February, the last month of the winter, in Ione, is another mild month, with average temperature fluctuating between 57.9°F (14.4°C) and 39.7°F (4.3°C). In February, the average high-temperature is almost the same as in January - a still moderate 57.9°F (14.4°C). Weather in February »

Weather in March

The first month of the spring, March, is a comfortable month in Ione, California, with average temperature ranging between min 41.5°F (5.3°C) and max 61.3°F (16.3°C). In Ione, the average high-temperature is essentially the same as in February - an enjoyable 61.3°F (16.3°C). Weather in March »

Weather in April

April, the same as March, is another comfortable spring month in Ione, California, with temperature in the range of an average high of 67.6°F (19.8°C) and an average low of 44.6°F (7°C). In Ione, the average high-temperature in April marginally rises, from 61.3°F (16.3°C) in March, to a still comfortable 67.6°F (19.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Ione, California, with average temperature ranging between max 75.4°F (24.1°C) and min 49.5°F (9.7°C). In May, the average high-temperature slightly increases, from a comfortable 67.6°F (19.8°C) in April, to a moderately hot 75.4°F (24.1°C). Weather in May »

Weather in June

The first month of the summer, June, is a tropical month in Ione, California, with average temperature varying between 55.9°F (13.3°C) and 86.2°F (30.1°C). In June, the average high-temperature rises, from a warm 75.4°F (24.1°C) in May, to a tropical 86.2°F (30.1°C). Weather in June »

Weather in July

July, like June, is another tropical summer month in Ione, California, with average temperature ranging between min 59.5°F (15.3°C) and max 92.8°F (33.8°C). With an average high-temperature of 92.8°F (33.8°C) and an average low-temperature of 59.5°F (15.3°C), July is the warmest month. The average heat index in July is estimated at a sweltering 95.2°F (35.1°C). Weather in July »

Weather in August

August, the last month of the summer, in Ione, is also a hot month, with average temperature fluctuating between 91.9°F (33.3°C) and 59°F (15°C). In August, the average high-temperature is almost the same as in July - a still hot 91.9°F (33.3°C). Weather in August »

Weather in September

September, the first month of the autumn, in Ione, is also a hot month, with average temperature varying between 86.9°F (30.5°C) and 57.9°F (14.4°C). In Ione, the average high-temperature in September is practically the same as in August - a still tropical 86.9°F (30.5°C). Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Ione, California, with temperature in the range of an average high of 75°F (23.9°C) and an average low of 52.3°F (11.3°C). In October, the average high-temperature drops, from a tropical 86.9°F (30.5°C) in September, to a moderately hot 75°F (23.9°C). Weather in October »

Weather in November

November, the last month of the autumn, in Ione, is another comfortable month, with average temperature varying between 44.8°F (7.1°C) and 63°F (17.2°C). In Ione, the average high-temperature in November drops, from a moderately hot 75°F (23.9°C) in October, to an enjoyable 63°F (17.2°C). Weather in November »

Weather in December

The first month of the winter, December, is also a fresh month in Ione, California, with average temperature varying between 38.8°F (3.8°C) and 54°F (12.2°C). December is the coldest month, with an average high-temperature of 54°F (12.2°C) and an average low-temperature of 38.8°F (3.8°C). Weather in December »
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FAQ

How much does it rain in Ione?

Throughout the year, in Ione, there are 75.1 rainfall days, and 19.06" (484mm) of precipitation is accumulated.

How much does it snow in Ione?

Throughout the year, in Ione, 0.04" (1mm) of snow is accumulated.

When it does not snow in Ione?

In Ione, California, snow does not fall in January through November.

When is the lowest UV index in Ione?

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 Ione?

The most humid month in Ione, California, is March, with an average relative humidity of 74%.

What is the wettest month in Ione?

The month with the most rainfall is March when the rain falls for 13.8 days and typically aggregates up to 3.7" (94mm) of precipitation.

When are the longest days in Ione?

June has the longest days of the year, with an average of 14.8h of daylight.

When is the highest UV index in Ione?

Months with the highest UV index are June and July, with an average maximum UV index of 7.

What is the warmest month in Ione?

The warmest month in Ione, California, is July, with an average high-temperature of 92.8°F (33.8°C) and an average low-temperature of 59.5°F (15.3°C).

What is the least humid month in Ione?

With an average relative humidity of 40%, July is the least humid month in Ione.

What is the driest month in Ione?

July and August are months with the least rain in Ione, California, when the rain falls for 1.4 days and typically aggregates up to 0.04" (1mm) of rain.

What month has the most sunshine in Ione?

The month with the most sunshine is July, with an average of 12.1h of sunshine.

What is the coldest month in Ione?

With an average high-temperature of 54°F (12.2°C) and an average low-temperature of 38.8°F (3.8°C), December is the coldest month in Ione, California.

When does it snow in Ione?

December is the only month when snow falls in Ione, California.

When does it snow the most in Ione?

December is the month with the most snowfall in Ione, California. Snow falls for 0.2 days and accumulates 0.04" (1mm) of snow.

What is the month with the shortest days in Ione?

December has the shortest days of the year in Ione, California, with an average of 9.5h of daylight.

What is the month with the least sunshine in Ione?

With an average of 6h of sunshine, December has the least sunshine of the year.

Average pressure
Ione, CA

Average pressure - Ione, CA

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed
Ione, CA

Average wind speed - Ione, CA

The windiest month (with the highest average wind speed) is February (5.6mph).
The calmest months (with the lowest average wind speed) are August and September (3.9mph).

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Average rainfall
Ione, CA

Average rainfall - Ione, CA

The wettest month (with the highest rainfall) is March (3.7").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days
Ione, CA

Average rainfall days - Ione, CA

The month with the highest number of rainy days is March (13.8 days).
The month with the least rainy days is August (1.2 days).

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Average snowfall
Ione, CA

Average snowfall - Ione, CA

The month with the highest snowfall is December (0.04").
Months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days
Ione, CA

Average snowfall days - Ione, CA

The month with the highest number of snowfall days is December (0.2 days).
Months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight / Average sunshine
Ione, CA

Average daylight / Average sunshine - Ione, CA

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6h).

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Average sunshine days
Ione, CA

Average sunshine days - Ione, CA

Months with the most sunshine days are July and August (28.8 days).
The month with the least sunshine days is March (16.3 days).

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Average UV index
Ione, CA

Average UV index - Ione, CA

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

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Average visibility
Ione, CA

Average visibility - Ione, CA

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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