October weather forecast
Byron, CA

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Weather in October

October, like September, in Byron, California, is a moderately hot autumn month, with an average temperature ranging between min 54°F (12.2°C) and max 75.9°F (24.4°C).

Temperature

The shift from September to October involves a decrease in the average high-temperature, dropping from a warm 85.3°F (29.6°C) to a still moderately hot 75.9°F (24.4°C). Byron's nights in October are distinguished by a pronounced temperature shift from the day, with an average low of 54°F (12.2°C).

Humidity

The average relative humidity in October is 54%.

Rainfall

In Byron, in October, it is raining for 3.3 days, with typically 0.51" (13mm) of accumulated precipitation. In Byron, California, during the entire year, the rain falls for 62 days and collects up to 10.16" (258mm) of precipitation.

Snowfall

January through November are months without snowfall.

Daylight

In Byron, the average length of the day in October is 11h and 12min.
On the first day of the month, sunrise is at 7:02 am and sunset at 6:48 pm. On the last day of October, sunrise is at 7:31 am and sunset at 6:08 pm PDT.

Sunshine

The average sunshine in October is 7.2h.

UV index

In Byron, the average daily maximum UV index in October is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A typical high UV index of 4 in October suggests the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.

Frequently asked questions

What is the average October temperature?

In Byron, 75.9°F (24.4°C) is the average high-temperature and 54°F (12.2°C) is the average low-temperature during October. In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 87.8°F (31°C).

What is the average humidity in October?

In Byron, the average relative humidity in October is 54%.

How many days does it rain in October?

In Byron, in October, during 3.3 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

When it does not snow?

January through November are months without snowfall.

What is the average length of the day in October?

In October, the average day length is 11h and 12min.

When are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 7:02 am and sunset at 6:48 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 6:08 pm PDT.

How many hours of sunshine does Byron have in October?

In October, the average sunshine duration is 7.2h.

How high is the UV index in October?

In October, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health threat 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 October
Byron, CA

Average temperature in October - Byron, CA
  • Average high temperature in October: 75.9°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 October: 54°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).

Average pressure in October
Byron, CA

Average pressure in October - Byron, CA
  • Average pressure in October: 29.98"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).

Average wind speed in October
Byron, CA

Average wind speed in October - Byron, CA
  • Average wind speed in October: 5.5mph

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).

Average humidity in October
Byron, CA

Average humidity in October - Byron, CA
  • Average humidity in October: 54%

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

Average rainfall in October
Byron, CA

Average rainfall in October - Byron, CA
  • Average rainfall in October: 0.51"

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

Average rainfall days in October
Byron, CA

Average rainfall days in October - Byron, CA
  • Average rainfall days in October: 3.3 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).

Average snowfall days in October
Byron, CA

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

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

Average daylight in October / Average sunshine in October - Byron, CA
  • Average daylight in October: 11h and 1min

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 October: 7h and 1min

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).

Average sunshine days in October
Byron, CA

Average sunshine days in October - Byron, CA
  • Average sunshine days in October: 26.9 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).

Average UV index in October
Byron, CA

Average UV index in October - Byron, CA
  • Average UV index in October: 4

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).

Average cloud cover in October
Byron, CA

Average cloud cover in October - Byron, CA
  • Average cloud cover in October: 15

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).

Average visibility in October
Byron, CA

Average visibility in October - Byron, CA
  • Average visibility in October: 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).

Byron, California, USA

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