January weather forecast
Byron, CA

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Weather in January

January is a refreshing winter month in Byron, California, with an average temperature varying between 56.1°F (13.4°C) and 41.5°F (5.3°C).

Temperature

With the onset of January, the average high-temperature registers at a mild 56.1°F (13.4°C), subtly different from December's 55°F (12.8°C). Byron experiences an average temperature drop to an icy 41.5°F (5.3°C) during January nights.

Humidity

The most humid month in Byron is January, with an average relative humidity of 74%.

Rainfall

In January, in Byron, the rain falls for 8.6 days. Throughout January, 1.89" (48mm) of precipitation is accumulated. Throughout the year, in Byron, there are 62 rainfall days, and 10.16" (258mm) of precipitation is accumulated.

Snowfall

In Byron, snow does not fall in January through November.

Daylight

In Byron, the average length of the day in January is 9h and 54min.
On the first day of January in Byron, sunrise is at 7:22 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:28 pm PST.

Sunshine

In January, the average sunshine is 6h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 3 in January translates into these instructions:
Put precautions into practice - Guidance to elude sunburn is provided. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

What is the usual temperature for Byron in January?

The high-temperature, in January, in Byron, records 56.1°F (13.4°C), while the low-temperature is 41.5°F (5.3°C).

What is the most humid month in Byron?

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

What is the average humidity in January in Byron?

In Byron, the average relative humidity in January is 74%.

How much does it rain in Byron in January?

In Byron, in January, it is raining for 8.6 days, with typically 1.89" (48mm) of accumulated precipitation.

When it does not snow in Byron?

January through November are months without snowfall.

Does it snow in Byron in January?

In January, in Byron, it doesn't snow. December is the latest month when it typically snows.

What is the average length of the day in January in Byron?

The average day length in January in Byron is 9h and 54min.

When is the sunrise / sunset in January in Byron?

In January, on the first day of the month, sunrise is at 7:22 am and sunset at 4:57 pm. On the last day of the month, in Byron, sunrise is at 7:11 am and sunset at 5:28 pm PST.

How long on average sun shines in January in Byron?

The average sunshine duration in January in Byron is 6h.

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

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

What is the UV index intensity in January in Byron?

In January, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Byron, CA

Average temperature in January - Byron, CA
  • Average high temperature in January: 56.1°F

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).

  • Average low temperature in January: 41.5°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 in January
Byron, CA

Average pressure in January - Byron, CA
  • Average pressure in January: 30.14"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).

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Average wind speed in January
Byron, CA

Average wind speed in January - Byron, CA
  • Average wind speed in January: 4.5mph

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).

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Average humidity in January
Byron, CA

Average humidity in January - Byron, CA
  • Average humidity in January: 74%

The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is September (52%).

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Average rainfall in January
Byron, CA

Average rainfall in January - Byron, CA
  • Average rainfall in January: 1.89"

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 in January
Byron, CA

Average rainfall days in January - Byron, CA
  • Average rainfall days in January: 8.6 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).

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Average snowfall days in January
Byron, CA

Average snowfall days in January - Byron, CA
  • Average snowfall days in January: 0 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).

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Average daylight in January /
Average sunshine in January
Byron, CA

Average daylight in January / Average sunshine in January - Byron, CA
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in January: 6h and 0min

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).

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Average sunshine days in January
Byron, CA

Average sunshine days in January - Byron, CA
  • Average sunshine days in January: 21.8 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).

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Average UV index in January
Byron, CA

Average UV index in January - Byron, CA
  • Average UV index in January: 3

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).

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Average cloud cover in January
Byron, CA

Average cloud cover in January - Byron, CA
  • Average cloud cover in January: 34

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).

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Average visibility in January
Byron, CA

Average visibility in January - Byron, CA
  • Average visibility in January: 6mi

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).

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Byron, California, USA

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