October weather forecast
Castella, CA

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Weather in October

October, like September, in Castella, California, is another refreshing autumn month, with an average temperature ranging between min 39.7°F (4.3°C) and max 63.9°F (17.7°C).

Temperature

As September transitions to October, the average high-temperature falls from a warm 77.2°F (25.1°C) to an enjoyable 63.9°F (17.7°C). Castella records a consistent low-temperature average of 39.7°F (4.3°C) during October, indicating a significant difference from the daytime heat.

Humidity

In Castella, the average relative humidity in October is 59%.

Rainfall

In Castella, during October, the rain falls for 7.1 days and regularly aggregates up to 1.77" (45mm) of precipitation. In Castella, during the entire year, the rain falls for 113.4 days and collects up to 31.3" (795mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. October is the first month it typically snows in Castella. Throughout October, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, in Castella, there are 28.7 snowfall days, and 45.51" (1156mm) of snow is accumulated.

Daylight

In October, the average length of the day in Castella is 11h and 5min.
On the first day of the month, sunrise is at 7:06 am and sunset at 6:50 pm. On the last day of October, sunrise is at 7:40 am and sunset at 6:05 pm PDT.

Sunshine

The average sunshine in October in Castella is 7.1h.

UV index

In October, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In October, the UV index of 3 transforms into the following advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Enhance your sun protection with tightly woven, yet airy clothing. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
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Frequently asked questions

What are October temperatures in Castella?

Castella in October has an average high-temperature of 63.9°F (17.7°C) and an average low-temperature of 39.7°F (4.3°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is appraised at 84.2°F (29°C).

What is the average humidity in October in Castella?

In October, the average relative humidity in Castella is 59%.

How much does it rain in Castella in October?

In Castella, in October, it is raining for 7.1 days, with typically 1.77" (45mm) of accumulated precipitation.

When does it start to snow in Castella?

October is the first month it typically snows in Castella, California. Throughout October, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in October in Castella?

The average day length in October in Castella is 11h and 5min.

When are sunrise and sunset in October in Castella?

On the first day of October, sunrise is at 7:06 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 6:05 pm PDT.

How long on average sun shines in October in Castella?

In October, the average sunshine duration in Castella, California, is 7.1h.

How high is the UV index in October in Castella?

In October, the average daily maximum UV index in Castella is 3. A UV Index of 3 to 5 symbolizes 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
Castella, CA

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

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is December (41°F).

  • Average low temperature in October: 39.7°F

The months with the highest average low temperature are July and August (51.4°F).
The coldest month (with the lowest average low temperature) is December (26.8°F).

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Average pressure in October
Castella, CA

Average pressure in October - Castella, CA
  • Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

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Average wind speed in October
Castella, CA

Average wind speed in October - Castella, CA
  • Average wind speed in October: 5.1mph

The windiest month (with the highest average wind speed) is March (5.7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

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Average humidity in October
Castella, CA

Average humidity in October - Castella, CA
  • Average humidity in October: 59%

The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is August (44%).

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Average rainfall in October
Castella, CA

Average rainfall in October - Castella, CA
  • Average rainfall in October: 1.77"

The wettest month (with the highest rainfall) is March (5.55").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days in October
Castella, CA

Average rainfall days in October - Castella, CA
  • Average rainfall days in October: 7.1 days

The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (2.7 days).

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Average snowfall in October
Castella, CA

Average snowfall in October - Castella, CA
  • Average snowfall in October: 0.04"

The month with the highest snowfall is January (12.6").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in October
Castella, CA

Average snowfall days in October - Castella, CA
  • Average snowfall days in October: 0.2 days

The month with the highest number of snowfall days is December (6.4 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • 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 12min).

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Average sunshine days in October
Castella, CA

Average sunshine days in October - Castella, CA
  • Average sunshine days in October: 22.2 days

The month with the most sunshine days is August (25.7 days).
The month with the least sunshine days is March (11.1 days).

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Average UV index in October
Castella, CA

Average UV index in October - Castella, CA
  • Average UV index in October: 3

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in October
Castella, CA

Average cloud cover in October - Castella, CA
  • Average cloud cover in October: 20

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in October
Castella, CA

Average visibility in October - Castella, CA
  • Average visibility in October: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).

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Castella, California, USA

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