October weather forecast
Island Mountain, CA

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Weather in October

October, the same as September, is another refreshing autumn month in Island Mountain, California, with an average temperature fluctuating between 63.9°F (17.7°C) and 51.3°F (10.7°C).

Temperature

October heralds a minor drop in average high-temperature, sliding from September's pleasant 69.8°F (21°C) to a comfortable 63.9°F (17.7°C). Island Mountain's nighttime temperature during October is consistently averaged at a fresh 51.3°F (10.7°C).

Humidity

The average relative humidity in October is 74%.

Rainfall

In Island Mountain, in October, it is raining for 6.7 days, with typically 1.97" (50mm) of accumulated precipitation. In Island Mountain, during the entire year, the rain falls for 102.7 days and collects up to 28.78" (731mm) of precipitation.

Snowfall

In Island Mountain, California, snow does not fall in January, March through December.

Daylight

In Island Mountain, the average length of the day in October is 11h and 8min.
On the first day of the month, sunrise is at 7:11 am and sunset at 6:55 pm. On the last day of October, sunrise is at 7:42 am and sunset at 6:12 pm PDT.

Sunshine

In October, the average sunshine is 6.7h.

UV index

In Island Mountain, the average daily maximum UV index in October is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 4 in October leads to these recommendations:
Undertake protective steps - Preventing sun damage is advised. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average October temperature?

The high-temperature, in October, in Island Mountain, records 63.9°F (17.7°C), while the low-temperature is 51.3°F (10.7°C).

What is the average humidity in October?

The average relative humidity in October is 74%.

How many days does it rain in October?

In Island Mountain, California, during October, the rain falls for 6.7 days and regularly aggregates up to 1.97" (50mm) of precipitation.

When it does not snow?

In Island Mountain, snow does not fall in January, March through December.

How many hours of daylight does Island Mountain have in October?

In Island Mountain, California, the average day length in October is 11h and 8min.

When is the sunrise / sunset in October?

On the first day of October in Island Mountain, California, sunrise is at 7:11 am and sunset at 6:55 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 6:12 pm PDT.

How long on average sun shines in October?

The average sunshine duration in October is 6.7h.

What is the UV index intensity in October?

In October, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
Island Mountain, CA

Average temperature in October - Island Mountain, CA
  • Average high temperature in October: 63.9°F

The warmest month (with the highest average high temperature) is September (69.8°F).
The month with the lowest average high temperature is December (53.4°F).

  • Average low temperature in October: 51.3°F

The months with the highest average low temperature are July, August and September (54.3°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).

Average pressure in October
Island Mountain, CA

Average pressure in October - Island Mountain, CA
  • Average pressure in October: 30.01"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are August and September (29.95"Hg).

Average wind speed in October
Island Mountain, CA

Average wind speed in October - Island Mountain, CA
  • Average wind speed in October: 8.2mph

The windiest month (with the highest average wind speed) is June (10.6mph).
The calmest months (with the lowest average wind speed) are January and August (7.8mph).

Average humidity in October
Island Mountain, CA

Average humidity in October - Island Mountain, CA
  • Average humidity in October: 74%

The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is September (72%).

Average rainfall in October
Island Mountain, CA

Average rainfall in October - Island Mountain, CA
  • Average rainfall in October: 1.97"

The wettest month (with the highest rainfall) is December (5.31").
The driest month (with the least rainfall) is July (0.08").

Average rainfall days in October
Island Mountain, CA

Average rainfall days in October - Island Mountain, CA
  • Average rainfall days in October: 6.7 days

The month with the highest number of rainy days is March (16.4 days).
The month with the least rainy days is August (1.8 days).

Average snowfall days in October
Island Mountain, CA

Average snowfall days in October - Island Mountain, CA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in October /
Average sunshine in October
Island Mountain, CA

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in October: 6h and 4min

The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

Average sunshine days in October
Island Mountain, CA

Average sunshine days in October - Island Mountain, CA
  • Average sunshine days in October: 23.3 days

The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is March (13.1 days).

Average UV index in October
Island Mountain, CA

Average UV index in October - Island Mountain, CA
  • Average UV index in October: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 3).

Average cloud cover in October
Island Mountain, CA

Average cloud cover in October - Island Mountain, CA
  • Average cloud cover in October: 24

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 10).

Average visibility in October
Island Mountain, CA

Average visibility in October - Island Mountain, 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).

Island Mountain, California, USA

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