Monthly weather forecast and climate
Byron, CA

Weather in January

January in Byron, California, is a moderate winter month, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 56.1°F (13.4°C). In Byron, the average high-temperature is essentially the same as in December - a mild 56.1°F (13.4°C). Weather in January »

Weather in February

February, the last month of the winter, in Byron, is also a moderate month, with average temperature varying between 59.7°F (15.4°C) and 42.4°F (5.8°C). In February, the average high-temperature is relatively the same as in January - a still mild 59.7°F (15.4°C). Weather in February »

Weather in March

The first month of the spring, March, is a comfortable month in Byron, California, with average temperature varying between 43.9°F (6.6°C) and 63.5°F (17.5°C). In Byron, the average high-temperature is practically the same as in February - an enjoyable 63.5°F (17.5°C). Weather in March »

Weather in April

April is a pleasant spring month in Byron, California, with average temperature fluctuating between 69.4°F (20.8°C) and 46.6°F (8.1°C). In April, the average high-temperature marginally rises, from a comfortable 63.5°F (17.5°C) in March, to a pleasant 69.4°F (20.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Byron, California, with average temperature varying between 75.6°F (24.2°C) and 50.5°F (10.3°C). In Byron, the average high-temperature in May marginally rises, from a pleasant 69.4°F (20.8°C) in April, to a warm 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 Byron, California, with average temperature varying between 84.4°F (29.1°C) and 55°F (12.8°C). In Byron, the average high-temperature slightly increases, from 75.6°F (24.2°C) in May, to a still moderately hot 84.4°F (29.1°C). Weather in June »

Weather in July

July is a tropical summer month in Byron, California, with average temperature fluctuating between 56.5°F (13.6°C) and 88.5°F (31.4°C). The warmest month is July, with an average high-temperature of 88.5°F (31.4°C) and an average low-temperature of 56.5°F (13.6°C). In July, the average heat index is estimated at a hot 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is also a hot month in Byron, California, with average temperature fluctuating between 87.4°F (30.8°C) and 57.4°F (14.1°C). In Byron, the average high-temperature is practically the same as in July - a still tropical 87.4°F (30.8°C). Weather in August »

Weather in September

September, the first month of the autumn, in Byron, is still a warm month, with average temperature fluctuating between 57.7°F (14.3°C) and 85.3°F (29.6°C). In September, the average high-temperature is essentially the same as in August - a moderately hot 85.3°F (29.6°C). Weather in September »

Weather in October

October, like September, in Byron, California, is a moderately hot autumn month, with average temperature varying between 75.9°F (24.4°C) and 54°F (12.2°C). In October, the average high-temperature decreases, from a warm 85.3°F (29.6°C) in September, to a still moderately hot 75.9°F (24.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is another comfortable month in Byron, California, with average temperature varying between 46.6°F (8.1°C) and 63.9°F (17.7°C). In Byron, California, the average high-temperature in November drops, from a moderately hot 75.9°F (24.4°C) in October, to a comfortable 63.9°F (17.7°C). Weather in November »

Weather in December

December, the first month of the winter, in Byron, is still a cool month, with average temperature fluctuating between 41.7°F (5.4°C) and 55°F (12.8°C). The coldest month is December, with an average high-temperature of 55°F (12.8°C) and an average low-temperature of 41.7°F (5.4°C). Weather in December »
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FAQ

What is the most humid month in Byron?

January is the most humid month, with an average relative humidity of 74%.

How much does it rain in Byron?

In Byron, during the entire year, the rain falls for 62 days and collects up to 10.16" (258mm) of precipitation.

How many days does it snow in Byron?

In Byron, during the entire year, snow falls for 0.1 days.

When it does not snow in Byron?

In Byron snow does not fall in January through November.

What are the months with the lowest UV index in Byron?

Months with the lowest UV index in Byron are January, February, November and December, with an average maximum UV index of 3.

What is the rainiest month in Byron?

The month with the most rainfall in Byron, California, is February when the rain falls for 7.8 days and typically aggregates up to 2.09" (53mm) of precipitation.

When are the longest days in Byron?

The month with the longest days is June, with an average of 14.8h of daylight.

What is the month with the highest UV index in Byron?

Months with the highest UV index in Byron are June through August, with an average maximum UV index of 6.

What is the warmest month in Byron?

With an average high-temperature of 88.5°F (31.4°C) and an average low-temperature of 56.5°F (13.6°C), July is the warmest month.

What is the driest month in Byron?

Months with the least rainfall in Byron, California, are July and August Rain falls for 1.3 days and accumulates 0.04" (1mm) of rain.

What month has the most sunshine in Byron?

With an average of 12.1h of sunshine, July has the most sunshine of the year.

What is the least humid month in Byron?

September is the least humid month, with an average relative humidity of 52%.

What is the coldest month in Byron?

December is the coldest month, with an average high-temperature of 55°F (12.8°C) and an average low-temperature of 41.7°F (5.4°C).

When does it snow in Byron?

The only month with snowfall is December.

What is the snowiest month in Byron?

The month with the most snowfall days is December when snow falls for 0.1 days.

What is the month with the shortest days in Byron?

With an average of 9.6h of daylight, December has the shortest days of the year in Byron.

What is the month with the least sunshine in Byron?

The month with the least sunshine in Byron, California, is December, with an average of 5.8h of sunshine.

Average temperature
Byron, CA

Average temperature - Byron, 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).

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Average pressure
Byron, CA

Average pressure - Byron, CA

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed
Byron, CA

Average wind speed - Byron, CA

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).

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Average rainfall
Byron, CA

Average rainfall - Byron, CA

The wettest month (with the highest rainfall) is February (2.09").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days
Byron, CA

Average rainfall days - Byron, CA

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).

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Average snowfall days
Byron, CA

Average snowfall days - Byron, CA

The month with the highest number of snowfall days is December (0.1 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
Byron, CA

Average daylight / Average sunshine - Byron, CA

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days
Byron, CA

Average sunshine days - Byron, CA

The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (17.7 days).

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Average UV index
Byron, CA

Average UV index - Byron, CA

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average visibility
Byron, CA

Average visibility - Byron, 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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